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Author SHA1 Message Date
Chris Tate cd66fee2da fixes 2026-03-20 21:42:49 -05:00
Chris Tate c9b688f16b fixes 2026-03-20 21:34:39 -05:00
Chris Tate 26ce894d97 og 2026-03-20 21:17:30 -05:00
Chris Tate e38aea8d33 fix controls 2026-03-20 21:13:23 -05:00
Chris Tate 080de0c443 fixes 2026-03-20 21:06:42 -05:00
Chris Tate 115dcc3b95 fixes 2026-03-20 20:41:04 -05:00
Chris Tate 2e4c89ca12 game engine 2026-03-20 20:35:46 -05:00
Chris Tate 4bb1151b6c examples (#229)
* add examples

* live demos

* og's

* r3f mobile

* rate limits

* fix lint
2026-03-19 01:55:28 -05:00
github-actions[bot] ad557b2309 chore: version packages (#226)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-03-17 17:44:18 -05:00
Chris Tateandctate 43b7515a24 chore: patch release (#225)
* chore: add minor changeset for v0.15 release

* chore: change changeset to patch release

---------

Co-authored-by: ctate <366502+ctate@users.noreply.github.com>
2026-03-17 17:37:29 -05:00
Laurens van der Helm e16c5ef477 feat: add yaml format support to buildUserPrompt (#223) 2026-03-17 13:40:28 -05:00
github-actions[bot] 22545b49cc chore: version packages (#221)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-03-13 17:05:54 -05:00
Chris Tate a8afd8bfe2 prepare v0.14 (#220) 2026-03-13 13:50:56 -05:00
Chris Tate dc489601be add yaml wire format and universal edit modes (#219)
* add yaml wire format and universal edit modes

**Summary**

- Add `@json-render/yaml` package with streaming parser, YAML prompt generation, and AI SDK transform
- Add universal edit modes (patch, merge, diff) to `@json-render/core`, usable across both JSONL and YAML formats
- Integrate YAML support and edit mode selection into the web playground with format toggle, token usage display, and prompt caching

* improvements

* fixes

* fixes ci

* docs
2026-03-13 13:37:21 -05:00
Chris Tate 7758d4bbd5 faster ci (#212)
* faster ci

* fix workflow
2026-03-12 22:47:02 -05:00
github-actions[bot] 6225fc41eb chore: version packages (#211)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-03-12 10:20:48 -05:00
Chris Tate 5b32de8720 prepare v0.13 (#210) 2026-03-12 10:18:18 -05:00
Chris Tate f6d1c5134b react-three-fiber (#209) 2026-03-12 10:14:11 -05:00
Chris Tate 316439fcd7 add solid example (#208) 2026-03-11 22:54:56 -05:00
Chris Tateandctate c180f529a0 feat: add strict mode to jsonSchema() for LLM structured outputs (#193)
* feat: add strict mode to jsonSchema() for LLM structured outputs

This PR adds support for generating strict JSON schemas compatible with LLM structured output APIs (OpenAI, Google Gemini, Anthropic, etc.).

## Problem
`catalog.jsonSchema()` was generating schemas that OpenAI's strict mode rejected due to:
- Use of `propertyNames` keyword (not permitted)
- Missing `additionalProperties: false` on nested objects
- Optional properties not being handled correctly for strict validation

## Changes
- Added `JsonSchemaOptions` interface with `strict` boolean flag
- Updated `catalog.jsonSchema()` to accept optional `JsonSchemaOptions` parameter
- When `strict: true`, the schema generator:
  - Sets `additionalProperties: false` on all object types
  - Removes `propertyNames` constraints
  - Lists all properties (including optional ones) in `required` arrays, using nullable types for optionals
  - Converts record types to fixed-key objects without additional property schemas
- Fixed Zod 4 compatibility issue in type name resolution
- Added comprehensive test suite covering all strict mode requirements
- Exported `JsonSchemaOptions` type from core package

## Usage
```typescript
// Default behavior (unchanged)
const schema = catalog.jsonSchema();

// Strict mode for LLM APIs
const strictSchema = catalog.jsonSchema({ strict: true });
```

The default behavior remains unchanged to maintain backward compatibility.

Fixes #180

* fix: document record type limitation and add anyOf nullable test

- Add clear JSDoc documenting that record/map types become opaque objects
  in strict mode (LLM strict schemas require additionalProperties: false)
- Improve inline comment on the record case in zodToJsonSchema
- Add test exercising the anyOf nullable wrapping for optional properties
  using a non-record schema so the path is directly verified

---------

Co-authored-by: ctate <366502+ctate@users.noreply.github.com>
2026-03-11 22:17:09 -05:00
Chris Tate c3c0a36f20 better visual (#206) 2026-03-11 12:16:51 -05:00
Patrick HallandPatrick 9bb82604f0 solid: add renderer implementation (#201)
* solid: add renderer implementation

This adds a Solid renderer with the same core capabilities as the
existing framework packages, including typed registry helpers,
providers, streaming hooks, docs, and example integration.

* fix: solid reactivity bugs in validation + state

---------

Co-authored-by: Patrick <phall@Patricks-MacBook-Pro.local>
2026-03-11 09:12:07 -05:00
github-actions[bot] caa90b8b84 chore: version packages (#204)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-03-11 02:19:24 -05:00
Chris Tate 54a1ecf817 Add v0.12.1 release changeset with mode renames and MCP fixes (#203)
This PR adds the changeset file to prepare for the v0.12.1 release, documenting important breaking changes and bug fixes.

## Changes

**@json-render/core**
- Renamed generation modes from `"generate"`/`"chat"` to `"standalone"`/`"inline"` (old names deprecated with warnings)

**@json-render/mcp**  
- Fixed React duplicate module error causing `useRef` to return null by adding Vite `resolve.dedupe` configuration
- Added `./build-app-html` export entry point

**Other improvements**
- Updated homepage URLs across all packages to https://json-render.dev
- Reorganized skills directory structure
- Added skills documentation page to web app

Fixes #198
2026-03-11 02:09:10 -05:00
Chris Tate dc9e9d17f3 rename modes (#197)
* rename modes

* improvements

* fixes

* fix homepage
2026-03-10 15:07:47 -05:00
Chris Tate 1977fb3a11 fix(mcp): resolve React duplicate module error with dedupe config (#192)
Fixes a React runtime error where `useRef` was null due to multiple React instances being bundled.

## Changes Made

- **Vite configuration**: Added `resolve.dedupe` for `react` and `react-dom` in `examples/mcp/vite.config.ts` to ensure only one instance of React is used during bundling
- **React version constraints**: Changed from exact versions (`19.2.3`) to flexible ranges (`^19.0.0`) in `examples/mcp/package.json` to improve compatibility
- **Build entry point**: Added new `build-app-html-entry.ts` file and updated `tsup.config.ts` to include it as a build target
- **Package exports**: Added `./build-app-html` export path in `packages/mcp/package.json`
- **Minor fixes**: Updated Next.js type reference path in stripe-app example

The root cause was React being duplicated in the bundle, causing hooks like `useRef` to fail when components tried to access React's internal state from the wrong instance. The `dedupe` configuration ensures Vite resolves all React imports to the same module instance.

Fixes #190
2026-03-09 21:21:07 -05:00
Chris Tate 4606c01085 skills page (#188) 2026-03-06 20:39:07 -06:00
Chris Tate c1a700d719 cleaner skills (#187) 2026-03-06 20:22:56 -06:00
github-actions[bot] 6f15faaae0 chore: version packages (#186)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-03-06 20:02:39 -06:00
Chris Tate 63c339b4bb prepare 0.12.0 (#185) 2026-03-06 19:58:08 -06:00
Chris Tate 1cc87310c9 mcp (#184)
* mcp

* fix lint
2026-03-06 19:41:27 -06:00
Chris Tate 5b929dffa6 fix(svelte): correct JSDoc comment and add missing zod peer dependency (#183)
Fixes #182
2026-03-06 19:16:17 -06:00
Simon H 512f7fe5c5 feat: Svelte-renderer (#168)
* create svelte-renderer

* helpers

* reactive API

* turn into provider components

* fixes

* examples

* docs

* correct component props for catalog, harmonize defineRegistry API with other APis

* shuffle things around

* createRenderer

* on

* boundary/warning

* functions

* fix

* fix types
2026-03-06 17:31:06 -06:00
b6f12d4d53 Feat/react email support (#159)
* add react-email workspace dependencies

* add react-email package

* add react-email example with Vercel Invite, Stripe Welcome and Nike Receipt

* add render tests for react-email package

* fix missing style prop on stripe-welcome logo Image

* add react email documentation

* add json render react email skill

* fix @internal/react-state alias in vitest config

Pre-existing issue: vitest could not resolve @internal/react-state,
causing 6 test suites in packages/react and packages/react-pdf to fail.

* fix PR review feedback

- fix tsconfig: remove rootDir, expand include for test imports
- fix render tests: add non-null assertions for noUncheckedIndexedAccess
- fix dev script: add portless to match other examples
- fix .env.example: correct comment from video to email generation
- fix docs: add blank line before heading in installation page

* merge latest

* fix: update tsconfig extends from @repo to @internal/typescript-config

* fixes

* fixes

---------

Co-authored-by: WManzoli <willmanzoli@gmail.com>
Co-authored-by: Chris Tate <chris@ctate.dev>
2026-03-02 16:43:03 -06:00
Chris Tate f29b1c2ef6 adds predev for portless to vue/vite (#178) 2026-03-02 11:52:08 -06:00
Michał Czapliński 8968bd648a Add missing portless dependency (#143)
* add portless dependency to package.json and update pnpm-lock.yaml

* fix: Add a `predev` command which warns that global portless install is required.

* fix: remove portless dependency

* fix: revert changes to pnpm-lock.yml

* revert again after pulling latest changes
2026-03-02 11:43:55 -06:00
github-actions[bot] 023ca789b2 chore: version packages (#176)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-02-27 13:29:16 -06:00
Chris Tate 3f1e71e779 prepare v0.11.0 (#175)
* prepare v0.11.0

* release instructions
2026-02-27 13:25:55 -06:00
Chris Tate 553c803422 image (#173)
* image

* fixes

* fixes

* fix ci

* fix ci

* disable @next/next/no-img-element rule in ESLint configuration

* update route.ts to use path.join for font resolution and adjust next-env.d.ts import path
2026-02-27 13:03:42 -06:00
Chris Tate 9f58d8712c fix docs (#167)
* fix docs

* fix docs
2026-02-25 16:19:29 -06:00
github-actions[bot] c2b397510e chore: version packages (#166)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-02-25 10:56:29 -06:00
Chris Tate 8506cfaa03 fix pkg name (#165)
* fix pkg name

* faster builds

* fixes

* Revert "fixes"

This reverts commit d0b43db972.

* Revert "faster builds"

This reverts commit 34a5190b07.
2026-02-25 10:50:59 -06:00
Chris Tate 9cef4e9142 prepare v0.10 (#164) 2026-02-25 10:27:25 -06:00
Chris Tate 3c11f19be4 vue improvements (#163)
* vue improvements

* fixes

* fixes

* fixes

* fix ci

* fix ci
2026-02-25 09:44:57 -06:00
Anthony Fu db3a8b41e9 feat: add Vue renderer (#162)
* feat: vue support

* feat: add a vite example

* use css instead of inline styles

* feat: add tests

* chore: use portless

* fix: update reactivity

* chore: update

* chore: build

* feat: add hooks, add missing zod peer deps
2026-02-25 08:21:11 -06:00
Chris Tate ea47b66dfc add dynamic forms support: computed values, watchers, cross-field validation (#156)
* add dynamic forms support: computed values, watchers, cross-field validation

- `$computed` and `$template` prop expressions for derived values and string interpolation
- Element-level `watch` field for cascading state dependencies
- Cross-field validators (`lessThan`, `greaterThan`, `equalTo`, `requiredIf`) with deep arg resolution
- `validateForm` built-in action for form-level validation

* fixes

* fixes

* fixes

* fixes

* fixes

* fixes

* fixes

* tests

* fixes

* update turbo

* tests

* fixes

* fixes

* fixes
2026-02-24 23:04:48 -06:00
Chris Tate cd82f969c8 xstate doc/test updates (#160) 2026-02-24 22:09:42 -06:00
David KhourshidandClaude Opus 4.6 6bcaaad57d feat: Add @xstate/store (atom) support (#157)
* feat: add @xstate/store integration using atoms

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* docs: add README for @json-render/xstate-store

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: rename xstateStoreStateStore to xstateStore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* README updates

* Keep naming convention

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-24 22:01:33 -06:00
github-actions[bot] 0b7d767cdd chore: version packages (#154)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-02-24 06:29:45 -06:00
Chris Tate b1036763d2 fixed: Install failure due to private dependency (#153)
* fix @internal/react-state import

* add changeset for @internal/react-state install fix

* docs: add v0.9.1 changelog entry
2026-02-24 06:25:34 -06:00
github-actions[bot] c502d5517e chore: version packages (#149)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-02-24 01:36:59 -06:00
Chris Tate 8740deb018 Update config.json (#148) 2026-02-24 01:34:16 -06:00
Chris Tate 1d755c104a prepare v0.9.0 (#147) 2026-02-24 01:21:02 -06:00
Chris Tate d904d45150 fix schema import to use server-safe subpath (#146)
- `@json-render/react` barrel-imports React contexts that call `createContext`, which crashes in Next.js App Router API routes (RSC runtime strips `createContext`)
- Updated all docs, READMEs, examples, and skills to import `schema` from `@json-render/react/schema` instead of `@json-render/react`
- For combined imports, split into separate `schema` (subpath) and client API (main entry) lines

Fixes #123
2026-02-24 00:55:33 -06:00
Chris Tate a110c6e0ea fix chaining actions (#144)
* fix chaining actions

* improvements
2026-02-24 00:40:40 -06:00
Juzisuan965 7de08ccdf7 fix: safely resolve inner type for Zod arrays (#140) 2026-02-24 00:02:04 -06:00
Chris Tate 3201854481 external store adapter for state management (#139)
* external store adapter for state management

Introduces a `StateStore` interface that lets users plug in their own state management (Redux, Zustand, XState, etc.) instead of being locked into the internal `useState`-based store.

- Added `StateStore` interface and `createStateStore()` factory to `@json-render/core`
- `StateProvider`, `JSONUIProvider`, and `createRenderer` now accept an optional `store` prop for controlled mode
- When `store` is provided, it becomes the single source of truth (`initialState`/`onStateChange` are ignored)
- When `store` is omitted, everything works exactly as before (fully backward compatible)
- Applied across all platform packages: react, react-native, react-pdf

* improvements

* update docs

* improvements

* fixes

* fix CI

* add store adapters

* fixes

* fixes

* fixes

* fixes

* e2e tests

* improvements

* fixes

* fixes

* fixes

* fixes

* update lockfile for widened react peer deps

* fix dashboard build
2026-02-23 23:12:57 -06:00
Chris Tate 64c889221e fix playground og (#138) 2026-02-22 16:10:31 -06:00
Chris Tate 49838fa353 update og font (#137) 2026-02-22 16:02:07 -06:00
Chris Tate fa47b08869 update header font (#136) 2026-02-22 15:51:54 -06:00
Chris Tate 5ccb109c08 use visual-json (#135)
* use visual-json

* fix lint
2026-02-22 15:42:29 -06:00
Chris Tate 62932f6516 fix gitignore (#134) 2026-02-22 15:20:33 -06:00
Chris Tate ee28d548c1 use portless (#133) 2026-02-22 15:15:17 -06:00
Chris Tate 0e6f2afc6c fix og (#128) 2026-02-20 02:41:16 -06:00
Chris Tate bccedc2459 add docs (#127) 2026-02-20 02:30:33 -06:00
789 changed files with 78627 additions and 2157 deletions
+14 -2
View File
@@ -6,11 +6,23 @@
[
"@json-render/core",
"@json-render/react",
"@json-render/react-email",
"@json-render/react-pdf",
"@json-render/shadcn",
"@json-render/react-native",
"@json-render/remotion",
"@json-render/codegen"
"@json-render/codegen",
"@json-render/zustand",
"@json-render/redux",
"@json-render/jotai",
"@json-render/vue",
"@json-render/xstate",
"@json-render/image",
"@json-render/mcp",
"@json-render/svelte",
"@json-render/solid",
"@json-render/react-three-fiber",
"@json-render/yaml"
]
],
"linked": [],
@@ -18,7 +30,7 @@
"baseBranch": "main",
"updateInternalDependencies": "patch",
"privatePackages": {
"version": false,
"version": true,
"tag": false
}
}
+8
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@@ -0,0 +1,8 @@
{
"mcpServers": {
"json-render": {
"command": "npx",
"args": ["tsx", "examples/mcp/server.ts", "--stdio"]
}
}
}
+34 -25
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@@ -13,34 +13,43 @@ concurrency:
cancel-in-progress: true
jobs:
ci:
name: Lint, Type Check & Build
lint:
name: Lint
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Install pnpm
uses: pnpm/action-setup@v4
- name: Setup Node.js
uses: actions/setup-node@v4
- uses: actions/checkout@v4
- uses: pnpm/action-setup@v4
- uses: actions/setup-node@v4
with:
node-version: 20
cache: "pnpm"
cache: pnpm
- run: pnpm install --frozen-lockfile
- run: pnpm lint
- name: Install dependencies
run: pnpm install --frozen-lockfile
test:
name: Test
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: pnpm/action-setup@v4
- uses: actions/setup-node@v4
with:
node-version: 20
cache: pnpm
- run: pnpm install --frozen-lockfile
- name: Build packages
run: pnpm turbo run build --filter='./packages/*'
- run: pnpm test
- name: Lint
run: pnpm lint
- name: Type check
run: pnpm type-check
- name: Test
run: pnpm test
- name: Build
run: pnpm build
typecheck:
name: Type Check
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: pnpm/action-setup@v4
- uses: actions/setup-node@v4
with:
node-version: 20
cache: pnpm
- run: pnpm install --frozen-lockfile
- run: pnpm type-check
+4 -9
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@@ -4,13 +4,11 @@
node_modules
.pnp
.pnp.js
.pnpm-store/
# Local env files
.env
.env.local
.env.development.local
.env.test.local
.env.production.local
.env*
!.env.example
# Testing
coverage
@@ -30,6 +28,7 @@ out/
build
dist
*.tsbuildinfo
.svelte-kit/
# Debug
@@ -44,10 +43,6 @@ yarn-error.log*
# opensrc - source code for packages
opensrc/
# json-studio (separate repo)
json-studio/
.env*.local
# Stripe apps (generated from template + build artifacts)
examples/stripe-app/*/stripe-app.json
examples/stripe-app/*/.build
+9
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@@ -0,0 +1,9 @@
{
"servers": {
"json-render": {
"type": "stdio",
"command": "npx",
"args": ["tsx", "examples/mcp/server.ts", "--stdio"]
}
}
}
+72
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@@ -26,6 +26,42 @@ This ensures we don't install outdated versions that may have incompatible types
- Do not use emojis in code or UI
- Use shadcn CLI to add shadcn/ui components: `pnpm dlx shadcn@latest add <component>`
- **Web app docs (`apps/web/`):** Never use Markdown table syntax (`| col | col |`). Always use HTML `<table>` with `<thead>`, `<tbody>`, `<tr>`, `<th>`, `<td>`. Markdown tables do not render correctly in the web app. Inside HTML table cells, curly braces must be escaped as JSX expressions (e.g. `<code>{'{ "$state": "/path" }'}</code>`) because MDX parses `{` as a JSX expression boundary.
## AI SDK / AI Gateway
When using the Vercel AI SDK (`ai` package) with AI Gateway, pass the model as a plain string identifier -- do not import a provider constructor:
```ts
import { streamText } from "ai";
const result = streamText({
model: "anthropic/claude-haiku-4.5",
prompt: "...",
});
```
This requires `AI_GATEWAY_API_KEY` to be set in the environment. See `tests/e2e/` for examples.
## Dev Servers
All apps and examples with dev servers use [portless](https://github.com/vercel-labs/portless) to avoid hardcoded ports. Portless assigns random ports and exposes each app via `.localhost` URLs.
Naming convention:
- Main web app: `json-render` → `json-render.localhost:1355`
- Examples: `[name]-demo.json-render` → `[name]-demo.json-render.localhost:1355`
When adding a new example that runs a dev server, wrap its `dev` script with `portless <name>`:
```json
{
"scripts": {
"dev": "portless my-example-demo.json-render next dev --turbopack"
}
}
```
Do **not** add `--port` flags -- portless handles port assignment automatically. Do **not** add portless as a project dependency; it must be installed globally.
## Workflow
@@ -33,9 +69,45 @@ This ensures we don't install outdated versions that may have incompatible types
- When making user-facing changes (new packages, API changes, new features, renamed exports, changed behavior), update the relevant documentation:
- Package `README.md` files in `packages/*/README.md`
- Root `README.md` (if packages table, install commands, or examples are affected)
- Web app docs in `apps/web/` (if guides, API references, or examples need updating)
- Skills in `skills/*/SKILL.md` (if the package has a corresponding skill)
- `AGENTS.md` (if workflow or conventions change)
## Releases
This monorepo uses [Changesets](https://github.com/changesets/changesets) for versioning and publishing.
### Fixed version group
All public `@json-render/*` packages are in a **fixed** group (see `.changeset/config.json`). A changeset that bumps any one of them bumps all of them to the same version. You only need to list the packages that actually changed in the changeset front matter — the fixed group handles the rest.
### Preparing a release
When asked to prepare a release (e.g. "prepare v0.12.0"):
1. **Create a changeset file** at `.changeset/v0-<N>-release.md` following the existing pattern:
- YAML front matter listing changed packages with bump type (`minor` for feature releases, `patch` for bug-fix-only releases)
- A one-line summary, then `### New:` / `### Improved:` / `### Fixed:` sections describing each change
- Always list `@json-render/core` plus any packages with actual code changes
2. **Do NOT bump versions** in `package.json` files — CI runs `pnpm ci:version` (which calls `changeset version`) to do that automatically
3. **Do NOT manually write `CHANGELOG.md`** entries — `changeset version` generates them from the changeset file
4. **Add new packages to the fixed group** in `.changeset/config.json` if they should be versioned together with the rest
5. **Fill documentation gaps** — every public package should have:
- A row in the root `README.md` packages table
- A renderer section in the root `README.md` (if it's a renderer)
- An API reference page at `apps/web/app/(main)/docs/api/<name>/page.mdx`
- An entry in `apps/web/lib/page-titles.ts` and `apps/web/lib/docs-navigation.ts`
- An entry in the docs-chat system prompt (`apps/web/app/api/docs-chat/route.ts`)
- A skill at `skills/<name>/SKILL.md`
- A `packages/<name>/README.md`
6. **Run `pnpm type-check`** after all changes to verify nothing is broken
### CI scripts
- `pnpm changeset` — interactively create a new changeset
- `pnpm ci:version` — run `changeset version` + lockfile update (CI only)
- `pnpm ci:publish` — build all packages and publish to npm (CI only)
<!-- opensrc:start -->
## Source Code Reference
+297 -37
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@@ -5,15 +5,26 @@
Generate dynamic, personalized UIs from prompts without sacrificing reliability. Predefined components and actions for safe, predictable output.
```bash
# for React
npm install @json-render/core @json-render/react
# pre-built shadcn/ui components
# for React with pre-built shadcn/ui components
npm install @json-render/shadcn
# or for mobile
# or for React Native
npm install @json-render/core @json-render/react-native
# or for video
npm install @json-render/core @json-render/remotion
# or for PDF documents
npm install @json-render/core @json-render/react-pdf
# or for HTML email
npm install @json-render/core @json-render/react-email @react-email/components @react-email/render
# or for Vue
npm install @json-render/core @json-render/vue
# or for Svelte
npm install @json-render/core @json-render/svelte
# or for SolidJS
npm install @json-render/core @json-render/solid
# or for 3D scenes
npm install @json-render/core @json-render/react-three-fiber @react-three/fiber @react-three/drei three
```
## Why json-render?
@@ -23,7 +34,7 @@ json-render is a **Generative UI** framework: AI generates interfaces from natur
- **Guardrailed** - AI can only use components in your catalog
- **Predictable** - JSON output matches your schema, every time
- **Fast** - Stream and render progressively as the model responds
- **Cross-Platform** - React (web) and React Native (mobile) from the same catalog
- **Cross-Platform** - React, Vue, Svelte, Solid (web), React Native (mobile) from the same catalog
- **Batteries Included** - 36 pre-built shadcn/ui components ready to use
## Quick Start
@@ -32,7 +43,7 @@ json-render is a **Generative UI** framework: AI generates interfaces from natur
```typescript
import { defineCatalog } from "@json-render/core";
import { schema } from "@json-render/react";
import { schema } from "@json-render/react/schema";
import { z } from "zod";
const catalog = defineCatalog(schema, {
@@ -84,9 +95,7 @@ const { registry } = defineRegistry(catalog, {
</div>
),
Button: ({ props, emit }) => (
<button onClick={() => emit("press")}>
{props.label}
</button>
<button onClick={() => emit("press")}>{props.label}</button>
),
},
});
@@ -106,14 +115,27 @@ function Dashboard({ spec }) {
## Packages
| Package | Description |
|---------|-------------|
| `@json-render/core` | Schemas, catalogs, AI prompts, dynamic props, SpecStream utilities |
| `@json-render/react` | React renderer, contexts, hooks |
| `@json-render/shadcn` | 36 pre-built shadcn/ui components (Radix UI + Tailwind CSS) |
| `@json-render/react-native` | React Native renderer with standard mobile components |
| `@json-render/remotion` | Remotion video renderer, timeline schema |
| `@json-render/react-pdf` | React PDF renderer for generating PDF documents from specs |
| Package | Description |
| --------------------------- | ---------------------------------------------------------------------- |
| `@json-render/core` | Schemas, catalogs, AI prompts, dynamic props, SpecStream utilities |
| `@json-render/react` | React renderer, contexts, hooks |
| `@json-render/vue` | Vue 3 renderer, composables, providers |
| `@json-render/svelte` | Svelte 5 renderer with runes-based reactivity |
| `@json-render/solid` | SolidJS renderer with fine-grained reactive contexts |
| `@json-render/shadcn` | 36 pre-built shadcn/ui components (Radix UI + Tailwind CSS) |
| `@json-render/react-three-fiber` | React Three Fiber renderer for 3D scenes (19 built-in components) |
| `@json-render/react-native` | React Native renderer with standard mobile components |
| `@json-render/remotion` | Remotion video renderer, timeline schema |
| `@json-render/react-pdf` | React PDF renderer for generating PDF documents from specs |
| `@json-render/react-email` | React Email renderer for HTML/plain-text emails from specs |
| `@json-render/image` | Image renderer for SVG/PNG output (OG images, social cards) via Satori |
| `@json-render/codegen` | Utilities for generating code from json-render UI trees |
| `@json-render/redux` | Redux / Redux Toolkit adapter for `StateStore` |
| `@json-render/zustand` | Zustand adapter for `StateStore` |
| `@json-render/jotai` | Jotai adapter for `StateStore` |
| `@json-render/xstate` | XState Store (atom) adapter for `StateStore` |
| `@json-render/mcp` | MCP Apps integration for Claude, ChatGPT, Cursor, VS Code |
| `@json-render/yaml` | YAML wire format with streaming parser, edit modes, AI SDK transform |
## Renderers
@@ -121,7 +143,7 @@ function Dashboard({ spec }) {
```tsx
import { defineRegistry, Renderer } from "@json-render/react";
import { schema } from "@json-render/react";
import { schema } from "@json-render/react/schema";
// Flat spec format (root key + elements map)
const spec = {
@@ -142,14 +164,72 @@ const spec = {
// defineRegistry creates a type-safe component registry
const { registry } = defineRegistry(catalog, { components });
<Renderer spec={spec} registry={registry} />
<Renderer spec={spec} registry={registry} />;
```
### Vue (UI)
```typescript
import { h } from "vue";
import { defineRegistry, Renderer } from "@json-render/vue";
import { schema } from "@json-render/vue/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) =>
h("div", { class: "card" }, [h("h3", null, props.title), children]),
Button: ({ props, emit }) =>
h("button", { onClick: () => emit("press") }, props.label),
},
});
// In your Vue component template:
// <Renderer :spec="spec" :registry="registry" />
```
### Svelte (UI)
```typescript
import { defineRegistry, Renderer } from "@json-render/svelte";
import { schema } from "@json-render/svelte/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) => /* Svelte 5 snippet */,
Button: ({ props, emit }) => /* Svelte 5 snippet */,
},
});
// In your Svelte component:
// <Renderer spec={spec} registry={registry} />
```
### Solid (UI)
```tsx
import { defineRegistry, Renderer } from "@json-render/solid";
import { schema } from "@json-render/solid/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: (renderProps) => <div>{renderProps.children}</div>,
Button: (renderProps) => (
<button onClick={() => renderProps.emit("press")}>
{renderProps.element.props.label as string}
</button>
),
},
});
<Renderer spec={spec} registry={registry} />;
```
### shadcn/ui (Web)
```tsx
import { defineCatalog } from "@json-render/core";
import { schema, defineRegistry, Renderer } from "@json-render/react";
import { schema } from "@json-render/react/schema";
import { defineRegistry, Renderer } from "@json-render/react";
import { shadcnComponentDefinitions } from "@json-render/shadcn/catalog";
import { shadcnComponents } from "@json-render/shadcn";
@@ -174,7 +254,7 @@ const { registry } = defineRegistry(catalog, {
},
});
<Renderer spec={spec} registry={registry} />
<Renderer spec={spec} registry={registry} />;
```
### React Native (Mobile)
@@ -195,23 +275,40 @@ const catalog = defineCatalog(schema, {
});
const { registry } = defineRegistry(catalog, { components: {} });
<Renderer spec={spec} registry={registry} />
<Renderer spec={spec} registry={registry} />;
```
### Remotion (Video)
```tsx
import { Player } from "@remotion/player";
import { Renderer, schema, standardComponentDefinitions } from "@json-render/remotion";
import {
Renderer,
schema,
standardComponentDefinitions,
} from "@json-render/remotion";
// Timeline spec format
const spec = {
composition: { id: "video", fps: 30, width: 1920, height: 1080, durationInFrames: 300 },
composition: {
id: "video",
fps: 30,
width: 1920,
height: 1080,
durationInFrames: 300,
},
tracks: [{ id: "main", name: "Main", type: "video", enabled: true }],
clips: [
{ id: "clip-1", trackId: "main", component: "TitleCard", props: { title: "Hello" }, from: 0, durationInFrames: 90 }
{
id: "clip-1",
trackId: "main",
component: "TitleCard",
props: { title: "Hello" },
from: 0,
durationInFrames: 90,
},
],
audio: { tracks: [] }
audio: { tracks: [] },
};
<Player
@@ -221,7 +318,7 @@ const spec = {
fps={spec.composition.fps}
compositionWidth={spec.composition.width}
compositionHeight={spec.composition.height}
/>
/>;
```
### React PDF (Documents)
@@ -232,7 +329,11 @@ import { renderToBuffer } from "@json-render/react-pdf";
const spec = {
root: "doc",
elements: {
doc: { type: "Document", props: { title: "Invoice" }, children: ["page-1"] },
doc: {
type: "Document",
props: { title: "Invoice" },
children: ["page-1"],
},
"page-1": {
type: "Page",
props: { size: "A4" },
@@ -246,8 +347,14 @@ const spec = {
"table-1": {
type: "Table",
props: {
columns: [{ header: "Item", width: "60%" }, { header: "Price", width: "40%", align: "right" }],
rows: [["Widget A", "$10.00"], ["Widget B", "$25.00"]],
columns: [
{ header: "Item", width: "60%" },
{ header: "Price", width: "40%", align: "right" },
],
rows: [
["Widget A", "$10.00"],
["Widget B", "$25.00"],
],
},
children: [],
},
@@ -258,6 +365,120 @@ const spec = {
const buffer = await renderToBuffer(spec);
```
### React Email (Email)
```typescript
import { renderToHtml } from "@json-render/react-email";
import { schema, standardComponentDefinitions } from "@json-render/react-email";
import { defineCatalog } from "@json-render/core";
const catalog = defineCatalog(schema, {
components: standardComponentDefinitions,
});
const spec = {
root: "html-1",
elements: {
"html-1": {
type: "Html",
props: { lang: "en", dir: "ltr" },
children: ["head-1", "body-1"],
},
"head-1": { type: "Head", props: {}, children: [] },
"body-1": {
type: "Body",
props: { style: { backgroundColor: "#f6f9fc" } },
children: ["container-1"],
},
"container-1": {
type: "Container",
props: {
style: { maxWidth: "600px", margin: "0 auto", padding: "20px" },
},
children: ["heading-1", "text-1"],
},
"heading-1": { type: "Heading", props: { text: "Welcome" }, children: [] },
"text-1": {
type: "Text",
props: { text: "Thanks for signing up." },
children: [],
},
},
};
const html = await renderToHtml(spec);
```
### Image (SVG/PNG)
```typescript
import { renderToPng } from "@json-render/image/render";
const spec = {
root: "frame",
elements: {
frame: {
type: "Frame",
props: { width: 1200, height: 630, backgroundColor: "#1a1a2e" },
children: ["heading"],
},
heading: {
type: "Heading",
props: { text: "Hello World", level: "h1", color: "#ffffff" },
children: [],
},
},
};
// Render to PNG (requires @resvg/resvg-js)
const png = await renderToPng(spec, { fonts });
// Or render to SVG string
import { renderToSvg } from "@json-render/image/render";
const svg = await renderToSvg(spec, { fonts });
```
### Three.js (3D)
```tsx
import { defineCatalog } from "@json-render/core";
import { schema, defineRegistry } from "@json-render/react";
import {
threeComponentDefinitions,
threeComponents,
ThreeCanvas,
} from "@json-render/react-three-fiber";
const catalog = defineCatalog(schema, {
components: {
Box: threeComponentDefinitions.Box,
Sphere: threeComponentDefinitions.Sphere,
AmbientLight: threeComponentDefinitions.AmbientLight,
DirectionalLight: threeComponentDefinitions.DirectionalLight,
OrbitControls: threeComponentDefinitions.OrbitControls,
},
actions: {},
});
const { registry } = defineRegistry(catalog, {
components: {
Box: threeComponents.Box,
Sphere: threeComponents.Sphere,
AmbientLight: threeComponents.AmbientLight,
DirectionalLight: threeComponents.DirectionalLight,
OrbitControls: threeComponents.OrbitControls,
},
});
<ThreeCanvas
spec={spec}
registry={registry}
shadows
camera={{ position: [5, 5, 5], fov: 50 }}
style={{ width: "100%", height: "100vh" }}
/>;
```
## Features
### Streaming (SpecStream)
@@ -307,16 +528,26 @@ Any prop value can be data-driven using expressions:
{
"type": "Icon",
"props": {
"name": { "$cond": { "$state": "/activeTab", "eq": "home" }, "$then": "home", "$else": "home-outline" },
"color": { "$cond": { "$state": "/activeTab", "eq": "home" }, "$then": "#007AFF", "$else": "#8E8E93" }
"name": {
"$cond": { "$state": "/activeTab", "eq": "home" },
"$then": "home",
"$else": "home-outline"
},
"color": {
"$cond": { "$state": "/activeTab", "eq": "home" },
"$then": "#007AFF",
"$else": "#8E8E93"
}
}
}
```
Two expression forms:
Expression forms:
- **`{ "$state": "/state/key" }`** - reads a value from the state model
- **`{ "$cond": <condition>, "$then": <value>, "$else": <value> }`** - evaluates a condition (same syntax as visibility conditions) and picks a branch
- **`{ "$cond": <condition>, "$then": <value>, "$else": <value> }`** - evaluates a condition and picks a branch
- **`{ "$template": "Hello, ${/user/name}!" }`** - interpolates state values into strings
- **`{ "$computed": "fn", "args": { ... } }`** - calls a registered function with resolved args
### Actions
@@ -325,13 +556,38 @@ Components can trigger actions, including the built-in `setState` action:
```json
{
"type": "Pressable",
"props": { "action": "setState", "actionParams": { "statePath": "/activeTab", "value": "home" } },
"props": {
"action": "setState",
"actionParams": { "statePath": "/activeTab", "value": "home" }
},
"children": ["home-icon"]
}
```
The `setState` action updates the state model directly, which re-evaluates visibility conditions and dynamic prop expressions.
### State Watchers
React to state changes by triggering actions:
```json
{
"type": "Select",
"props": {
"value": { "$bindState": "/form/country" },
"options": ["US", "Canada", "UK"]
},
"watch": {
"/form/country": {
"action": "loadCities",
"params": { "country": { "$state": "/form/country" } }
}
}
}
```
`watch` is a top-level field on elements (sibling of `type`/`props`/`children`). Watchers fire when the watched value changes, not on initial render.
---
## Demo
@@ -343,10 +599,14 @@ pnpm install
pnpm dev
```
- http://localhost:3000 - Docs & Playground
- http://localhost:3001 - Example Dashboard
- http://localhost:3002 - Remotion Video Example
- http://json-render.localhost:1355 - Docs & Playground
- http://dashboard-demo.json-render.localhost:1355 - Example Dashboard
- http://react-email-demo.json-render.localhost:1355 - React Email Example
- http://remotion-demo.json-render.localhost:1355 - Remotion Video Example
- Chat Example: run `pnpm dev` in `examples/chat`
- Svelte Example: run `pnpm dev` in `examples/svelte` or `examples/svelte-chat`
- Vue Example: run `pnpm dev` in `examples/vue`
- Vite Renderers (React + Vue + Svelte + Solid): run `pnpm dev` in `examples/vite-renderers`
- React Native example: run `npx expo start` in `examples/react-native`
## How It Works
@@ -356,7 +616,7 @@ flowchart LR
A[User Prompt] --> B[AI + Catalog]
B --> C[JSON Spec]
C --> D[Renderer]
B -.- E([guardrailed])
C -.- F([predictable])
D -.- G([streamed])
+84
View File
@@ -0,0 +1,84 @@
# web
## 0.1.9
### Patch Changes
- Updated dependencies [43b7515]
- @json-render/core@0.14.1
- @json-render/codegen@0.14.1
- @json-render/react@0.14.1
- @json-render/yaml@0.14.1
## 0.1.8
### Patch Changes
- Updated dependencies [a8afd8b]
- @json-render/core@0.14.0
- @json-render/yaml@0.14.0
- @json-render/codegen@0.14.0
- @json-render/react@0.14.0
## 0.1.7
### Patch Changes
- Updated dependencies [5b32de8]
- @json-render/core@0.13.0
- @json-render/codegen@0.13.0
- @json-render/react@0.13.0
## 0.1.6
### Patch Changes
- Updated dependencies [54a1ecf]
- @json-render/core@0.12.1
- @json-render/codegen@0.12.1
- @json-render/react@0.12.1
## 0.1.5
### Patch Changes
- Updated dependencies [63c339b]
- @json-render/core@0.12.0
- @json-render/codegen@0.12.0
- @json-render/react@0.12.0
## 0.1.4
### Patch Changes
- Updated dependencies [3f1e71e]
- @json-render/core@0.11.0
- @json-render/codegen@0.11.0
- @json-render/react@0.11.0
## 0.1.3
### Patch Changes
- Updated dependencies [9cef4e9]
- @json-render/core@0.10.0
- @json-render/react@0.10.0
- @json-render/codegen@0.10.0
## 0.1.2
### Patch Changes
- Updated dependencies [b103676]
- @json-render/react@0.9.1
- @json-render/core@0.9.1
- @json-render/codegen@0.9.1
## 0.1.1
### Patch Changes
- Updated dependencies [1d755c1]
- @json-render/core@0.9.0
- @json-render/react@0.9.0
- @json-render/codegen@0.9.0
+1 -1
View File
@@ -14,7 +14,7 @@ pnpm dev
bun dev
```
Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
Open [http://json-render.localhost:1355](http://json-render.localhost:1355) with your browser to see the result.
You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+3 -2
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "A2UI Integration" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/a2ui")
# A2UI Integration
@@ -66,7 +67,7 @@ A2UI uses an adjacency list model - a flat list of components with ID references
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
// A2UI BoundValue schema
@@ -1,4 +1,5 @@
export const metadata = { title: "Adaptive Cards Integration" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/adaptive-cards")
# Adaptive Cards Integration
@@ -89,7 +90,7 @@ Define a catalog matching the Adaptive Cards element types:
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
// Common Adaptive Cards properties
+3 -2
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "AG-UI Integration" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/ag-ui")
# AG-UI Integration
@@ -150,7 +151,7 @@ Create a catalog for UI components that agents can render:
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
export const aguiCatalog = defineCatalog(schema, {
+14 -13
View File
@@ -1,8 +1,9 @@
export const metadata = { title: "AI SDK Integration" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/ai-sdk")
# AI SDK Integration
Use json-render with the [Vercel AI SDK](https://sdk.vercel.ai) for seamless streaming. json-render supports two modes: **Generate** (standalone UI) and **Chat** (UI embedded in conversation). See [Generation Modes](/docs/generation-modes) for a detailed comparison.
Use json-render with the [Vercel AI SDK](https://sdk.vercel.ai) for seamless streaming. json-render supports two modes: **Standalone** (standalone UI) and **Inline** (UI embedded in conversation). See [Generation Modes](/docs/generation-modes) for a detailed comparison.
## Installation
@@ -10,9 +11,9 @@ Use json-render with the [Vercel AI SDK](https://sdk.vercel.ai) for seamless str
npm install ai @ai-sdk/react
```
## Generate Mode
## Standalone Mode
In generate mode, the AI outputs only JSONL patches. The entire response is a UI spec with no prose. This is the default mode and is ideal for playgrounds, builders, and dashboard generators.
In standalone mode, the AI outputs only JSONL patches. The entire response is a UI spec with no prose. This is the default mode and is ideal for playgrounds, builders, and dashboard generators.
### API Route
@@ -72,9 +73,9 @@ function GenerativeUI() {
}
```
## Chat Mode
## Inline Mode
In chat mode, the AI responds conversationally and includes JSONL patches inline. Text-only replies are allowed when no UI is needed. This is ideal for chatbots, copilots, and educational assistants.
In inline mode, the AI responds conversationally and includes JSONL patches inline. Text-only replies are allowed when no UI is needed. This is ideal for chatbots, copilots, and educational assistants.
### API Route
@@ -95,7 +96,7 @@ export async function POST(req: Request) {
const result = streamText({
model: yourModel,
system: catalog.prompt({ mode: "chat" }),
system: catalog.prompt({ mode: "inline" }),
messages,
});
@@ -181,13 +182,13 @@ const systemPrompt = catalog.prompt({
});
```
### Chat Mode Prompt
### Inline Mode Prompt
```typescript
const chatPrompt = catalog.prompt({ mode: "chat" });
const inlinePrompt = catalog.prompt({ mode: "inline" });
```
In chat mode, the prompt instructs the AI to respond conversationally first, then include JSONL patches on their own lines when UI is needed. Text-only replies are allowed.
In inline mode, the prompt instructs the AI to respond conversationally first, then include JSONL patches on their own lines when UI is needed. Text-only replies are allowed.
## Which Mode?
@@ -196,8 +197,8 @@ In chat mode, the prompt instructs the AI to respond conversationally first, the
<thead>
<tr>
<th></th>
<th>Generate</th>
<th>Chat</th>
<th>Standalone</th>
<th>Inline</th>
</tr>
</thead>
<tbody>
@@ -214,7 +215,7 @@ In chat mode, the prompt instructs the AI to respond conversationally first, the
<tr>
<td>System prompt</td>
<td><code>catalog.prompt()</code></td>
<td><code>{"catalog.prompt({ mode: \"chat\" })"}</code></td>
<td><code>{"catalog.prompt({ mode: \"inline\" })"}</code></td>
</tr>
<tr>
<td>Stream utility</td>
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/codegen API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/codegen")
# @json-render/codegen
+101 -10
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/core API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/core")
# @json-render/core
@@ -10,7 +11,7 @@ Creates a type-safe catalog definition with schema validation.
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
function defineCatalog<T extends ZodType>(
s: T,
@@ -74,7 +75,8 @@ interface Catalog {
interface PromptOptions {
system?: string; // Custom system message intro
customRules?: string[]; // Additional rules to append
mode?: "generate" | "chat"; // Output mode (default: "generate")
mode?: "standalone" | "inline" | "generate" | "chat"; // Output mode (default: "standalone")
editModes?: EditMode[]; // Edit modes to document in prompt (default: ["patch"])
}
interface SpecValidationResult<T> {
@@ -118,7 +120,7 @@ The schema for flat UI element trees. This is exported from @json-render/react.
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
// schema defines:
// - Spec shape: { root: string, elements: Record<string, UIElement> }
@@ -369,7 +371,7 @@ Most users should use `pipeJsonRender()` instead, which wraps this transform for
### createMixedStreamParser
Parse a mixed stream of text and JSONL patches (used for Chat + GenUI mode):
Parse a mixed stream of text and JSONL patches (used for Inline mode):
```typescript
import { createMixedStreamParser } from '@json-render/core';
@@ -388,7 +390,7 @@ parser.flush();
### pipeJsonRender
Pipe an AI SDK `UIMessageStream` through the json-render transform. Lines that parse as JSONL patches are emitted as `data-spec` parts; everything else passes through as text. Used in Chat mode API routes.
Pipe an AI SDK `UIMessageStream` through the json-render transform. Lines that parse as JSONL patches are emitted as `data-spec` parts; everything else passes through as text. Used in Inline mode API routes.
```typescript
import { pipeJsonRender } from '@json-render/core';
@@ -402,7 +404,7 @@ const stream = createUIMessageStream({
return createUIMessageStreamResponse({ stream });
```
See [Generation Modes](/docs/generation-modes) for full Chat mode setup.
See [Generation Modes](/docs/generation-modes) for full Inline mode setup.
### SpecStream Types
@@ -479,9 +481,10 @@ function buildUserPrompt(options: UserPromptOptions): string
interface UserPromptOptions {
prompt: string; // The user's text prompt
currentSpec?: Spec | null; // Existing spec to refine (triggers patch-only mode)
currentSpec?: Spec | null; // Existing spec to refine (triggers edit mode)
state?: Record<string, unknown> | null; // Runtime state context to include
maxPromptLength?: number; // Max length for user text (truncates before wrapping)
editModes?: EditMode[]; // Edit modes for refinement (default: ["patch"])
}
```
@@ -491,14 +494,15 @@ interface UserPromptOptions {
const userPrompt = buildUserPrompt({ prompt: "create a todo app" });
```
### Refinement (patch-only mode)
### Refinement (edit modes)
When `currentSpec` is provided, the prompt instructs the AI to output only the patches needed for the change, not recreate the entire spec:
When `currentSpec` is provided, the prompt instructs the AI to use the specified edit modes instead of recreating the entire spec. Available modes: `"patch"` (RFC 6902), `"merge"` (RFC 7396), and `"diff"` (unified diff).
```typescript
const userPrompt = buildUserPrompt({
prompt: "add a dark mode toggle",
currentSpec: existingSpec,
editModes: ["patch", "merge"],
});
```
@@ -513,6 +517,93 @@ const userPrompt = buildUserPrompt({
});
```
## Edit Modes
Universal edit mode utilities for modifying existing specs. Used by `buildUserPrompt` internally and available for direct use.
```typescript
import {
buildEditInstructions,
buildEditUserPrompt,
isNonEmptySpec,
type EditMode,
type EditConfig,
} from '@json-render/core';
type EditMode = "patch" | "merge" | "diff";
```
### buildEditInstructions
Generate the prompt section describing available edit modes. Supports both JSON and YAML formats.
```typescript
function buildEditInstructions(config: EditConfig, format: "json" | "yaml"): string
const instructions = buildEditInstructions({ modes: ["patch", "merge"] }, "json");
```
### buildEditUserPrompt
Build a user prompt for editing an existing spec. Includes the current spec (with line numbers when diff mode is enabled) and mode-specific instructions.
```typescript
function buildEditUserPrompt(options: BuildEditUserPromptOptions): string
interface BuildEditUserPromptOptions {
prompt: string;
currentSpec?: Spec | null;
config?: EditConfig;
format: "json" | "yaml";
maxPromptLength?: number;
serializer?: (spec: Spec) => string;
}
```
### isNonEmptySpec
Check whether a value is a non-empty spec (has a root string and at least one element).
```typescript
function isNonEmptySpec(spec: unknown): spec is Spec
```
## Deep Merge and Diff
Format-agnostic utilities for merging and diffing spec objects.
### deepMergeSpec
Deep-merge with RFC 7396 semantics: `null` deletes, arrays replace, objects recurse. Neither input is mutated.
```typescript
import { deepMergeSpec } from '@json-render/core';
function deepMergeSpec(
base: Record<string, unknown>,
patch: Record<string, unknown>
): Record<string, unknown>
const merged = deepMergeSpec(currentSpec, { elements: { main: { props: { title: "New" } } } });
```
### diffToPatches
Generate RFC 6902 JSON Patch operations that transform one object into another. Arrays are compared shallowly and replaced atomically; plain objects recurse.
```typescript
import { diffToPatches } from '@json-render/core';
function diffToPatches(
oldObj: Record<string, unknown>,
newObj: Record<string, unknown>,
basePath?: string
): JsonPatch[]
const patches = diffToPatches(oldSpec, newSpec);
// [{ op: "replace", path: "/elements/main/props/title", value: "New Title" }]
```
## evaluateVisibility
Evaluates a visibility condition against the state model.
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@@ -0,0 +1,364 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/image")
# @json-render/image
Image renderer. Turn JSON specs into SVG and PNG images using [Satori](https://github.com/vercel/satori).
## Install
```bash
npm install @json-render/core @json-render/image
```
For PNG output, also install the optional peer dependency:
```bash
npm install @resvg/resvg-js
```
See the [Image example](https://github.com/vercel-labs/json-render/tree/main/examples/image) for a full working example.
## schema
The image element schema for image specs. Use with `defineCatalog` from core.
```typescript
import { defineCatalog } from '@json-render/core';
import { schema, standardComponentDefinitions } from '@json-render/image';
const catalog = defineCatalog(schema, {
components: standardComponentDefinitions,
});
```
## Render Functions
Server-side functions for producing image output. Both accept a spec and optional `RenderOptions`.
```typescript
import { renderToSvg, renderToPng } from '@json-render/image/render';
const svg = await renderToSvg(spec, { fonts });
const png = await renderToPng(spec, { fonts });
await writeFile('output.png', png);
```
### RenderOptions
```typescript
interface RenderOptions {
registry?: ComponentRegistry;
includeStandard?: boolean; // default: true
state?: Record<string, unknown>;
fonts?: SatoriOptions['fonts'];
width?: number;
height?: number;
}
```
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>fonts</code></td>
<td><code>{"SatoriOptions['fonts']"}</code></td>
<td><code>[]</code></td>
<td>Font data for text rendering (required for meaningful output)</td>
</tr>
<tr>
<td><code>width</code></td>
<td><code>number</code></td>
<td>Frame prop</td>
<td>Override the output image width</td>
</tr>
<tr>
<td><code>height</code></td>
<td><code>number</code></td>
<td>Frame prop</td>
<td>Override the output image height</td>
</tr>
<tr>
<td><code>registry</code></td>
<td><code>{"Record<string, ComponentRenderer>"}</code></td>
<td><code>{"{}"}</code></td>
<td>Custom component map (merged with standard components)</td>
</tr>
<tr>
<td><code>includeStandard</code></td>
<td><code>boolean</code></td>
<td><code>true</code></td>
<td>Include built-in standard components</td>
</tr>
<tr>
<td><code>state</code></td>
<td><code>{"Record<string, unknown>"}</code></td>
<td><code>{"{}"}</code></td>
<td>Initial state for <code>$state</code> / <code>$cond</code> dynamic prop resolution</td>
</tr>
</tbody>
</table>
## Standard Components
### Root
#### Frame
Root image container. Defines the output image dimensions and background. Must be the root element.
```typescript
{
width: number;
height: number;
backgroundColor: string | null;
padding: number | null;
display: "flex" | "none" | null;
flexDirection: "row" | "column" | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
}
```
### Layout
#### Box
Generic container with padding, margin, background, border, and flex alignment. Supports absolute positioning.
```typescript
{
padding: number | null;
paddingTop: number | null;
paddingBottom: number | null;
paddingLeft: number | null;
paddingRight: number | null;
margin: number | null;
backgroundColor: string | null;
borderWidth: number | null;
borderColor: string | null;
borderRadius: number | null;
flex: number | null;
width: number | string | null;
height: number | string | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
flexDirection: "row" | "column" | null;
position: "relative" | "absolute" | null;
top: number | null;
left: number | null;
right: number | null;
bottom: number | null;
overflow: "visible" | "hidden" | null;
}
```
#### Row
Horizontal flex layout with optional wrapping.
```typescript
{
gap: number | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
padding: number | null;
flex: number | null;
wrap: boolean | null;
}
```
#### Column
Vertical flex layout.
```typescript
{
gap: number | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
padding: number | null;
flex: number | null;
}
```
### Content
#### Heading
Heading text at various levels. h1 is largest, h4 is smallest.
```typescript
{
text: string;
level: "h1" | "h2" | "h3" | "h4" | null;
color: string | null;
align: "left" | "center" | "right" | null;
letterSpacing: number | string | null;
lineHeight: number | null;
}
```
#### Text
Body text with configurable size, color, weight, and alignment.
```typescript
{
text: string;
fontSize: number | null;
color: string | null;
align: "left" | "center" | "right" | null;
fontWeight: "normal" | "bold" | null;
fontStyle: "normal" | "italic" | null;
lineHeight: number | null;
letterSpacing: number | string | null;
textDecoration: "none" | "underline" | "line-through" | null;
}
```
#### Image
Image from a URL with optional dimensions and fit.
```typescript
{
src: string;
width: number | null;
height: number | null;
borderRadius: number | null;
objectFit: "contain" | "cover" | "fill" | "none" | null;
}
```
### Decorative
#### Divider
Horizontal line separator.
```typescript
{
color: string | null;
thickness: number | null;
marginTop: number | null;
marginBottom: number | null;
}
```
#### Spacer
Empty vertical space.
```typescript
{
height: number | null;
}
```
## Catalog Definitions
Pre-built definitions for creating image catalogs:
```typescript
import { standardComponentDefinitions } from '@json-render/image/catalog';
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/image';
const catalog = defineCatalog(schema, {
components: {
...standardComponentDefinitions,
// Add custom components
},
});
```
## Server-Safe Import
Import schema and catalog definitions without pulling in React or Satori:
```typescript
import { schema, standardComponentDefinitions } from '@json-render/image/server';
```
## Sub-path Exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>@json-render/image</code></td>
<td>Full package: schema, renderer, components, render functions</td>
</tr>
<tr>
<td><code>@json-render/image/server</code></td>
<td>Schema and catalog definitions only (no React or Satori)</td>
</tr>
<tr>
<td><code>@json-render/image/catalog</code></td>
<td>Standard component definitions and types</td>
</tr>
<tr>
<td><code>@json-render/image/render</code></td>
<td>Server-side render functions only</td>
</tr>
</tbody>
</table>
## Types
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>ImageSchema</code></td>
<td>Schema type for image specs</td>
</tr>
<tr>
<td><code>ImageSpec</code></td>
<td>Spec type for image output</td>
</tr>
<tr>
<td><code>RenderOptions</code></td>
<td>Options for render functions</td>
</tr>
<tr>
<td><code>ComponentRenderProps</code></td>
<td>Props passed to component render functions</td>
</tr>
<tr>
<td><code>ComponentRenderer</code></td>
<td>Component render function type</td>
</tr>
<tr>
<td><code>ComponentRegistry</code></td>
<td>Map of component names to render functions</td>
</tr>
<tr>
<td><code>StandardComponentDefinitions</code></td>
<td>Type of the standard component definitions object</td>
</tr>
<tr>
<td><code>StandardComponentProps{'<K>'}</code></td>
<td>Inferred props type for a standard component by name</td>
</tr>
</tbody>
</table>
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import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/jotai")
# @json-render/jotai
Jotai adapter for json-render's `StateStore` interface.
## Installation
```bash
npm install @json-render/jotai @json-render/core @json-render/react jotai
```
## jotaiStateStore
Create a `StateStore` backed by a Jotai atom.
```typescript
import { jotaiStateStore } from "@json-render/jotai";
```
### Options
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Required</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>atom</code></td>
<td><code>{'WritableAtom<StateModel, [StateModel], void>'}</code></td>
<td>Yes</td>
<td>A writable atom holding the state model.</td>
</tr>
<tr>
<td><code>store</code></td>
<td>Jotai <code>Store</code></td>
<td>No</td>
<td>The Jotai store instance. Defaults to a new store created internally. Pass your own to share state with <code>{'<Provider>'}</code>.</td>
</tr>
</tbody>
</table>
### Example
```typescript
import { atom } from "jotai";
import { jotaiStateStore } from "@json-render/jotai";
import { StateProvider } from "@json-render/react";
const uiAtom = atom<Record<string, unknown>>({ count: 0 });
const store = jotaiStateStore({ atom: uiAtom });
```
```tsx
<StateProvider store={store}>
{/* json-render reads/writes go through Jotai */}
</StateProvider>
```
### Shared Jotai Store
If your app already uses a Jotai `<Provider>` with a custom store, pass it so both json-render and your components share the same state:
```typescript
import { atom, createStore } from "jotai";
import { Provider as JotaiProvider } from "jotai/react";
import { jotaiStateStore } from "@json-render/jotai";
import { StateProvider } from "@json-render/react";
const jStore = createStore();
const uiAtom = atom<Record<string, unknown>>({ count: 0 });
const store = jotaiStateStore({ atom: uiAtom, store: jStore });
```
```tsx
<JotaiProvider store={jStore}>
<StateProvider store={store}>
{/* Both json-render and useAtom() see the same state */}
</StateProvider>
</JotaiProvider>
```
## Re-exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Source</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>StateStore</code></td>
<td><code>@json-render/core</code></td>
</tr>
</tbody>
</table>
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import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/mcp")
# @json-render/mcp
MCP Apps integration for json-render. Serve json-render UIs as interactive [MCP Apps](https://modelcontextprotocol.io/docs/extensions/apps) inside Claude, ChatGPT, Cursor, VS Code, and other MCP-capable clients.
## Install
```bash
npm install @json-render/mcp @json-render/core @modelcontextprotocol/sdk
```
For the iframe-side React UI, also install:
```bash
npm install @json-render/react react react-dom
```
See the [MCP example](https://github.com/vercel-labs/json-render/tree/main/examples/mcp) for a full working example.
## Overview
MCP Apps let MCP servers return interactive HTML UIs that render directly inside chat conversations. `@json-render/mcp` bridges json-render catalogs with the MCP Apps protocol:
1. Your **catalog** defines which components and actions the AI can use
2. The **MCP server** exposes the catalog as a tool with the spec schema
3. The **bundled HTML** renders json-render specs inside the host's sandboxed iframe
4. The AI generates a spec, the host renders it, and users interact with the live UI
## Server API
### createMcpApp
Create a fully-configured MCP server. This is the main entry point.
```typescript
import { createMcpApp } from "@json-render/mcp";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import fs from "node:fs";
const server = createMcpApp({
name: "My Dashboard",
version: "1.0.0",
catalog: myCatalog,
html: fs.readFileSync("dist/index.html", "utf-8"),
});
await server.connect(new StdioServerTransport());
```
#### CreateMcpAppOptions
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>name</code></td>
<td><code>string</code></td>
<td>Server name shown in client UIs</td>
</tr>
<tr>
<td><code>version</code></td>
<td><code>string</code></td>
<td>Server version</td>
</tr>
<tr>
<td><code>catalog</code></td>
<td><code>Catalog</code></td>
<td>json-render catalog defining available components</td>
</tr>
<tr>
<td><code>html</code></td>
<td><code>string</code></td>
<td>Self-contained HTML for the iframe UI</td>
</tr>
<tr>
<td><code>tool</code></td>
<td><code>McpToolOptions</code></td>
<td>Optional tool name/title/description overrides</td>
</tr>
</tbody>
</table>
### registerJsonRenderTool
Register a json-render tool on an existing `McpServer`. Use this when you need to add json-render to a server that has other tools.
```typescript
import { registerJsonRenderTool } from "@json-render/mcp";
registerJsonRenderTool(server, {
catalog,
name: "render-ui",
title: "Render UI",
description: "Render an interactive UI",
resourceUri: "ui://render-ui/view.html",
});
```
### registerJsonRenderResource
Register the UI resource that serves the bundled HTML.
```typescript
import { registerJsonRenderResource } from "@json-render/mcp";
registerJsonRenderResource(server, {
resourceUri: "ui://render-ui/view.html",
html: bundledHtml,
});
```
## Client API (`@json-render/mcp/app`)
These exports run inside the sandboxed iframe rendered by the MCP host.
### useJsonRenderApp
React hook that connects to the MCP host, listens for tool results, and maintains the current json-render spec.
```tsx
import { useJsonRenderApp } from "@json-render/mcp/app";
import { JSONUIProvider, Renderer } from "@json-render/react";
function McpAppView({ registry }) {
const { spec, loading, connected, error } = useJsonRenderApp({
name: "my-app",
version: "1.0.0",
});
if (error) return <div>Error: {error.message}</div>;
if (!spec) return <div>Waiting...</div>;
return (
<JSONUIProvider registry={registry} initialState={spec.state ?? {}}>
<Renderer spec={spec} registry={registry} loading={loading} />
</JSONUIProvider>
);
}
```
#### UseJsonRenderAppReturn
<table>
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>spec</code></td>
<td><code>{'Spec | null'}</code></td>
<td>Current json-render spec</td>
</tr>
<tr>
<td><code>loading</code></td>
<td><code>boolean</code></td>
<td>Whether the spec is still being received</td>
</tr>
<tr>
<td><code>connected</code></td>
<td><code>boolean</code></td>
<td>Whether connected to the host</td>
</tr>
<tr>
<td><code>connecting</code></td>
<td><code>boolean</code></td>
<td>Whether currently connecting</td>
</tr>
<tr>
<td><code>error</code></td>
<td><code>{'Error | null'}</code></td>
<td>Connection error, if any</td>
</tr>
<tr>
<td><code>app</code></td>
<td><code>{'App | null'}</code></td>
<td>The underlying MCP App instance</td>
</tr>
<tr>
<td><code>callServerTool</code></td>
<td><code>{'(name, args?) => Promise<void>'}</code></td>
<td>Call an MCP server tool and update spec from result</td>
</tr>
</tbody>
</table>
### buildAppHtml
Generate a self-contained HTML page from bundled JavaScript and CSS.
```typescript
import { buildAppHtml } from "@json-render/mcp/app";
import fs from "node:fs";
const html = buildAppHtml({
title: "Dashboard",
js: fs.readFileSync("dist/app.js", "utf-8"),
css: fs.readFileSync("dist/app.css", "utf-8"),
});
```
## Client Configuration
### Cursor
Add to `.cursor/mcp.json`:
```json
{
"mcpServers": {
"json-render": {
"command": "npx",
"args": ["tsx", "path/to/server.ts", "--stdio"]
}
}
}
```
### Claude Desktop
Add to `~/Library/Application Support/Claude/claude_desktop_config.json`:
```json
{
"mcpServers": {
"json-render": {
"command": "npx",
"args": ["tsx", "/absolute/path/to/server.ts", "--stdio"]
}
}
}
```
## Supported Clients
MCP Apps are supported by Claude (web and desktop), ChatGPT, VS Code (GitHub Copilot), Cursor, Goose, and Postman.
@@ -0,0 +1,310 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/react-email")
# @json-render/react-email
React Email renderer. Turn JSON specs into HTML or plain-text emails using `@react-email/components` and `@react-email/render`.
## Install
```bash
npm install @json-render/core @json-render/react-email @react-email/components @react-email/render
```
See the [React Email example](https://github.com/vercel-labs/json-render/tree/main/examples/react-email) for a full working example.
## schema
The email element schema for specs. Use with `defineCatalog` from core.
```typescript
import { defineCatalog } from '@json-render/core';
import { schema, standardComponentDefinitions } from '@json-render/react-email';
const catalog = defineCatalog(schema, {
components: standardComponentDefinitions,
});
```
## Render Functions
Server-side functions for producing email output. All accept a spec and optional `RenderOptions`.
```typescript
import { renderToHtml, renderToPlainText } from '@json-render/react-email';
const html = await renderToHtml(spec);
const plainText = await renderToPlainText(spec);
```
### RenderOptions
```typescript
interface RenderOptions {
registry?: ComponentRegistry;
includeStandard?: boolean; // default: true
state?: Record<string, unknown>;
}
```
<table>
<thead>
<tr>
<th>Option</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>registry</code></td>
<td>Custom component map (merged with standard components)</td>
</tr>
<tr>
<td><code>includeStandard</code></td>
<td>Include built-in standard components (default: <code>true</code>)</td>
</tr>
<tr>
<td><code>state</code></td>
<td>Initial state for <code>$state</code> / <code>$cond</code> dynamic prop resolution</td>
</tr>
</tbody>
</table>
## defineRegistry
Create a type-safe component registry from a catalog. Components receive `{ props, children, emit, bindings, loading }`.
```tsx
import { defineRegistry } from '@json-render/react-email';
import { Container, Heading, Text } from '@react-email/components';
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) => (
<Container style={{ padding: 16, backgroundColor: '#fff' }}>
<Heading>{props.title}</Heading>
{children}
</Container>
),
},
});
const html = await renderToHtml(spec, { registry });
```
## createRenderer
Create a standalone renderer component wired to state, actions, and validation (for interactive previews in the browser).
```typescript
import { createRenderer } from '@json-render/react-email';
const EmailRenderer = createRenderer(catalog, components);
```
## Renderer
The main component that renders a spec to React Email elements. Use inside `JSONUIProvider` when you need state, actions, or visibility.
```typescript
interface RendererProps {
spec: Spec | null;
registry?: ComponentRegistry;
includeStandard?: boolean; // default: true
loading?: boolean;
fallback?: ComponentRenderer;
}
```
## Standard Components
### Document structure
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Html</code></td>
<td>Top-level email wrapper. Must be the root element.</td>
</tr>
<tr>
<td><code>Head</code></td>
<td>Email head section. Place inside Html.</td>
</tr>
<tr>
<td><code>Body</code></td>
<td>Email body wrapper. Place inside Html.</td>
</tr>
</tbody>
</table>
### Layout
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Container</code></td>
<td>Constrains content width (e.g. max-width 600px).</td>
</tr>
<tr>
<td><code>Section</code></td>
<td>Groups related content.</td>
</tr>
<tr>
<td><code>Row</code></td>
<td>Horizontal layout row.</td>
</tr>
<tr>
<td><code>Column</code></td>
<td>Column within a Row.</td>
</tr>
</tbody>
</table>
### Content
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Heading</code></td>
<td>Heading text (h1-h6).</td>
</tr>
<tr>
<td><code>Text</code></td>
<td>Body text paragraph.</td>
</tr>
<tr>
<td><code>Link</code></td>
<td>Hyperlink with text and href.</td>
</tr>
<tr>
<td><code>Button</code></td>
<td>Call-to-action button (link styled as button).</td>
</tr>
<tr>
<td><code>Image</code></td>
<td>Image from URL.</td>
</tr>
<tr>
<td><code>Hr</code></td>
<td>Horizontal rule separator.</td>
</tr>
</tbody>
</table>
### Utility
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Preview</code></td>
<td>Preview text for inbox (inside Html).</td>
</tr>
<tr>
<td><code>Markdown</code></td>
<td>Renders markdown content as email-safe HTML.</td>
</tr>
</tbody>
</table>
## Server-Safe Import
Import schema and catalog definitions without pulling in React or `@react-email/components`:
```typescript
import { schema, standardComponentDefinitions } from '@json-render/react-email/server';
```
## Sub-path Exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>@json-render/react-email</code></td>
<td>Full package: schema, renderer, components, render functions</td>
</tr>
<tr>
<td><code>@json-render/react-email/server</code></td>
<td>Schema and catalog definitions only (no React)</td>
</tr>
<tr>
<td><code>@json-render/react-email/catalog</code></td>
<td>Standard component definitions and types</td>
</tr>
<tr>
<td><code>@json-render/react-email/render</code></td>
<td>Server-side render functions only</td>
</tr>
</tbody>
</table>
## Types
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>ReactEmailSchema</code></td>
<td>Schema type for email specs</td>
</tr>
<tr>
<td><code>ReactEmailSpec</code></td>
<td>Spec type for email documents</td>
</tr>
<tr>
<td><code>RenderOptions</code></td>
<td>Options for render functions</td>
</tr>
<tr>
<td><code>ComponentContext</code></td>
<td>Typed component render function context</td>
</tr>
<tr>
<td><code>ComponentFn</code></td>
<td>Component render function type</td>
</tr>
<tr>
<td><code>StandardComponentDefinitions</code></td>
<td>Type of the standard component definitions object</td>
</tr>
<tr>
<td><code>StandardComponentProps&lt;K&gt;</code></td>
<td>Inferred props type for a standard component by name</td>
</tr>
</tbody>
</table>
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/react-native API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/react-native")
# @json-render/react-native
@@ -8,65 +9,120 @@ React Native renderer with standard components, providers, and hooks.
### Layout
| Component | Props | Description |
|-----------|-------|-------------|
| `Container` | `padding`, `background`, `borderRadius`, `borderColor`, `flex` | Basic wrapper with styling |
| `Row` | `gap`, `align`, `justify`, `flex`, `wrap` | Horizontal flex layout |
| `Column` | `gap`, `align`, `justify`, `flex` | Vertical flex layout |
| `ScrollContainer` | `direction` | Scrollable area (vertical or horizontal) |
| `SafeArea` | `edges` | Safe area insets for notch/home indicator |
| `Pressable` | `action`, `actionParams` | Touchable wrapper that triggers actions |
| `Spacer` | `size`, `flex` | Fixed or flexible spacing |
| `Divider` | `color`, `thickness` | Thin line separator |
<table>
<thead>
<tr><th>Component</th><th>Props</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>Container</code></td><td><code>padding</code>, <code>background</code>, <code>borderRadius</code>, <code>borderColor</code>, <code>flex</code></td><td>Basic wrapper with styling</td></tr>
<tr><td><code>Row</code></td><td><code>gap</code>, <code>align</code>, <code>justify</code>, <code>flex</code>, <code>wrap</code></td><td>Horizontal flex layout</td></tr>
<tr><td><code>Column</code></td><td><code>gap</code>, <code>align</code>, <code>justify</code>, <code>flex</code></td><td>Vertical flex layout</td></tr>
<tr><td><code>ScrollContainer</code></td><td><code>direction</code></td><td>Scrollable area (vertical or horizontal)</td></tr>
<tr><td><code>SafeArea</code></td><td><code>edges</code></td><td>Safe area insets for notch/home indicator</td></tr>
<tr><td><code>Pressable</code></td><td><code>action</code>, <code>actionParams</code></td><td>Touchable wrapper that triggers actions</td></tr>
<tr><td><code>Spacer</code></td><td><code>size</code>, <code>flex</code></td><td>Fixed or flexible spacing</td></tr>
<tr><td><code>Divider</code></td><td><code>color</code>, <code>thickness</code></td><td>Thin line separator</td></tr>
</tbody>
</table>
### Content
| Component | Props | Description |
|-----------|-------|-------------|
| `Heading` | `text`, `level`, `align`, `color` | Heading text (levels 1-6) |
| `Paragraph` | `text`, `align`, `color` | Body text |
| `Label` | `text`, `color`, `bold` | Small label text |
| `Image` | `uri`, `width`, `height`, `resizeMode`, `borderRadius` | Image display |
| `Avatar` | `uri`, `size`, `fallback` | Circular avatar |
| `Badge` | `label`, `color`, `textColor` | Status badge |
| `Chip` | `label`, `selected`, `color` | Tag/chip |
<table>
<thead>
<tr><th>Component</th><th>Props</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>Heading</code></td><td><code>text</code>, <code>level</code>, <code>align</code>, <code>color</code></td><td>Heading text (levels 1-6)</td></tr>
<tr><td><code>Paragraph</code></td><td><code>text</code>, <code>align</code>, <code>color</code></td><td>Body text</td></tr>
<tr><td><code>Label</code></td><td><code>text</code>, <code>color</code>, <code>bold</code></td><td>Small label text</td></tr>
<tr><td><code>Image</code></td><td><code>uri</code>, <code>width</code>, <code>height</code>, <code>resizeMode</code>, <code>borderRadius</code></td><td>Image display</td></tr>
<tr><td><code>Avatar</code></td><td><code>uri</code>, <code>size</code>, <code>fallback</code></td><td>Circular avatar</td></tr>
<tr><td><code>Badge</code></td><td><code>label</code>, <code>color</code>, <code>textColor</code></td><td>Status badge</td></tr>
<tr><td><code>Chip</code></td><td><code>label</code>, <code>selected</code>, <code>color</code></td><td>Tag/chip</td></tr>
</tbody>
</table>
### Input
| Component | Props | Description |
|-----------|-------|-------------|
| `Button` | `label`, `variant`, `size`, `disabled`, `action`, `actionParams` | Pressable button |
| `TextInput` | `placeholder`, `value` (use `$bindState`), `secure`, `keyboardType`, `multiline` | Text input field |
| `Switch` | `checked` (use `$bindState`), `label` | Toggle switch |
| `Checkbox` | `checked` (use `$bindState`), `label` | Checkbox with label |
| `Slider` | `value` (use `$bindState`), `min`, `max`, `step` | Range slider |
| `SearchBar` | `placeholder`, `value` (use `$bindState`) | Search input |
<table>
<thead>
<tr><th>Component</th><th>Props</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>Button</code></td><td><code>label</code>, <code>variant</code>, <code>size</code>, <code>disabled</code>, <code>action</code>, <code>actionParams</code></td><td>Pressable button</td></tr>
<tr><td><code>TextInput</code></td><td><code>placeholder</code>, <code>value</code> (use <code>$bindState</code>), <code>secure</code>, <code>keyboardType</code>, <code>multiline</code></td><td>Text input field</td></tr>
<tr><td><code>Switch</code></td><td><code>checked</code> (use <code>$bindState</code>), <code>label</code></td><td>Toggle switch</td></tr>
<tr><td><code>Checkbox</code></td><td><code>checked</code> (use <code>$bindState</code>), <code>label</code></td><td>Checkbox with label</td></tr>
<tr><td><code>Slider</code></td><td><code>value</code> (use <code>$bindState</code>), <code>min</code>, <code>max</code>, <code>step</code></td><td>Range slider</td></tr>
<tr><td><code>SearchBar</code></td><td><code>placeholder</code>, <code>value</code> (use <code>$bindState</code>)</td><td>Search input</td></tr>
</tbody>
</table>
### Feedback
| Component | Props | Description |
|-----------|-------|-------------|
| `Spinner` | `size`, `color` | Loading indicator |
| `ProgressBar` | `progress`, `color`, `trackColor` | Progress indicator |
<table>
<thead>
<tr><th>Component</th><th>Props</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>Spinner</code></td><td><code>size</code>, <code>color</code></td><td>Loading indicator</td></tr>
<tr><td><code>ProgressBar</code></td><td><code>progress</code>, <code>color</code>, <code>trackColor</code></td><td>Progress indicator</td></tr>
</tbody>
</table>
### Composite
| Component | Props | Description |
|-----------|-------|-------------|
| `Card` | `title`, `subtitle`, `padding` | Card container |
| `ListItem` | `title`, `subtitle`, `leading`, `trailing`, `action`, `actionParams` | List row |
| `Modal` | `visible`, `title` | Bottom sheet modal |
<table>
<thead>
<tr><th>Component</th><th>Props</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>Card</code></td><td><code>title</code>, <code>subtitle</code>, <code>padding</code></td><td>Card container</td></tr>
<tr><td><code>ListItem</code></td><td><code>title</code>, <code>subtitle</code>, <code>leading</code>, <code>trailing</code>, <code>action</code>, <code>actionParams</code></td><td>List row</td></tr>
<tr><td><code>Modal</code></td><td><code>visible</code>, <code>title</code></td><td>Bottom sheet modal</td></tr>
</tbody>
</table>
## Providers
### StateProvider
```tsx
<StateProvider initialState={object}>
<StateProvider initialState={object} onStateChange={fn}>
{children}
</StateProvider>
```
<table>
<thead>
<tr><th>Prop</th><th>Type</th><th>Description</th></tr>
</thead>
<tbody>
<tr><td><code>store</code></td><td><code>StateStore</code></td><td>External store (controlled mode). When provided, <code>initialState</code> and <code>onStateChange</code> are ignored.</td></tr>
<tr><td><code>initialState</code></td><td><code>Record&lt;string, unknown&gt;</code></td><td>Initial state model (uncontrolled mode).</td></tr>
<tr><td><code>onStateChange</code></td><td><code>{'(changes: Array<{ path: string; value: unknown }>) => void'}</code></td><td>Callback when state changes (uncontrolled mode). Called once per <code>set</code> or <code>update</code> with all changed entries.</td></tr>
</tbody>
</table>
#### External Store (Controlled Mode)
Pass a `StateStore` to bypass the internal state and wire json-render to any state management library:
```tsx
import { createStateStore, type StateStore } from "@json-render/react-native";
const store = createStateStore({ count: 0 });
<StateProvider store={store}>
{children}
</StateProvider>
// Mutate from anywhere — components re-render automatically:
store.set("/count", 1);
```
The `store` prop is also available on `JSONUIProvider` and `createRenderer`.
### ActionProvider
```tsx
@@ -164,8 +220,13 @@ import { standardComponentDefinitions, standardActionDefinitions } from "@json-r
import { schema } from "@json-render/react-native/schema";
```
| Export | Purpose |
|--------|---------|
| `standardComponentDefinitions` | Catalog definitions for all 25+ standard components |
| `standardActionDefinitions` | Catalog definitions for standard actions (setState, navigate) |
| `schema` | React Native element tree schema |
<table>
<thead>
<tr><th>Export</th><th>Purpose</th></tr>
</thead>
<tbody>
<tr><td><code>standardComponentDefinitions</code></td><td>Catalog definitions for all 25+ standard components</td></tr>
<tr><td><code>standardActionDefinitions</code></td><td>Catalog definitions for standard actions (setState, navigate)</td></tr>
<tr><td><code>schema</code></td><td>React Native element tree schema</td></tr>
</tbody>
</table>
@@ -0,0 +1,439 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/react-pdf")
# @json-render/react-pdf
PDF document renderer. Turn JSON specs into PDFs using `@react-pdf/renderer`.
## Install
```bash
npm install @json-render/core @json-render/react-pdf
```
See the [React PDF example](https://github.com/vercel-labs/json-render/tree/main/examples/react-pdf) for a full working example.
## schema
The PDF element schema for document specs. Use with `defineCatalog` from core.
```typescript
import { defineCatalog } from '@json-render/core';
import { schema, standardComponentDefinitions } from '@json-render/react-pdf';
const catalog = defineCatalog(schema, {
components: standardComponentDefinitions,
});
```
## Render Functions
Server-side functions for producing PDF output. All accept a spec and optional `RenderOptions`.
```typescript
import { renderToBuffer, renderToStream, renderToFile } from '@json-render/react-pdf';
const buffer = await renderToBuffer(spec);
const stream = await renderToStream(spec);
stream.pipe(res);
await renderToFile(spec, './output.pdf');
```
### RenderOptions
```typescript
interface RenderOptions {
registry?: ComponentRegistry;
includeStandard?: boolean; // default: true
state?: Record<string, unknown>;
}
```
<table>
<thead>
<tr>
<th>Option</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>registry</code></td>
<td>Custom component map (merged with standard components)</td>
</tr>
<tr>
<td><code>includeStandard</code></td>
<td>Include built-in standard components (default: <code>true</code>)</td>
</tr>
<tr>
<td><code>state</code></td>
<td>Initial state for <code>$state</code> / <code>$cond</code> dynamic prop resolution</td>
</tr>
</tbody>
</table>
## defineRegistry
Create a type-safe component registry from a catalog. Components receive `{ props, children, emit, bindings, loading }`.
```tsx
import { defineRegistry } from '@json-render/react-pdf';
import { View, Text } from '@react-pdf/renderer';
const { registry } = defineRegistry(catalog, {
components: {
Badge: ({ props }) => (
<View style={{ backgroundColor: props.color ?? '#e5e7eb', padding: 4, borderRadius: 4 }}>
<Text style={{ fontSize: 10 }}>{props.label}</Text>
</View>
),
},
});
const buffer = await renderToBuffer(spec, { registry });
```
## createRenderer
Create a standalone renderer component wired to state, actions, and validation.
```typescript
import { createRenderer } from '@json-render/react-pdf';
const PDFRenderer = createRenderer(catalog, components);
```
```typescript
interface CreateRendererProps {
spec: Spec | null;
store?: StateStore;
state?: Record<string, unknown>;
onAction?: (actionName: string, params?: Record<string, unknown>) => void;
onStateChange?: (changes: Array<{ path: string; value: unknown }>) => void;
loading?: boolean;
fallback?: ComponentRenderer;
}
```
When `store` is provided, `state` and `onStateChange` are ignored (controlled mode).
## Renderer
The main component that renders a spec to `@react-pdf/renderer` elements.
```typescript
interface RendererProps {
spec: Spec | null;
registry?: ComponentRegistry;
includeStandard?: boolean; // default: true
loading?: boolean;
fallback?: ComponentRenderer;
}
```
## Standard Components
### Document Structure
#### Document
Top-level PDF wrapper. Must be the root element. Children must be `Page` components.
```typescript
{
title: string | null;
author: string | null;
subject: string | null;
}
```
#### Page
A page in the document with configurable size, orientation, and margins.
```typescript
{
size: "A4" | "A3" | "A5" | "LETTER" | "LEGAL" | "TABLOID" | null;
orientation: "portrait" | "landscape" | null;
marginTop: number | null;
marginBottom: number | null;
marginLeft: number | null;
marginRight: number | null;
backgroundColor: string | null;
}
```
### Layout
#### View
Generic container with padding, margin, background, border, and flex alignment.
```typescript
{
padding: number | null;
paddingTop: number | null;
paddingBottom: number | null;
paddingLeft: number | null;
paddingRight: number | null;
margin: number | null;
backgroundColor: string | null;
borderWidth: number | null;
borderColor: string | null;
borderRadius: number | null;
flex: number | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
}
```
#### Row
Horizontal flex layout with optional wrapping.
```typescript
{
gap: number | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
padding: number | null;
flex: number | null;
wrap: boolean | null;
}
```
#### Column
Vertical flex layout.
```typescript
{
gap: number | null;
alignItems: "flex-start" | "center" | "flex-end" | "stretch" | null;
justifyContent: "flex-start" | "center" | "flex-end" | "space-between" | "space-around" | null;
padding: number | null;
flex: number | null;
}
```
### Content
#### Heading
h1-h4 heading text with configurable color and alignment.
```typescript
{
text: string;
level: "h1" | "h2" | "h3" | "h4" | null;
color: string | null;
align: "left" | "center" | "right" | null;
}
```
#### Text
Body text with full styling control.
```typescript
{
text: string;
fontSize: number | null;
color: string | null;
align: "left" | "center" | "right" | null;
fontWeight: "normal" | "bold" | null;
fontStyle: "normal" | "italic" | null;
lineHeight: number | null;
}
```
#### Image
Image from a URL with optional dimensions and fit.
```typescript
{
src: string;
width: number | null;
height: number | null;
objectFit: "contain" | "cover" | "fill" | "none" | null;
}
```
#### Link
Hyperlink with visible text.
```typescript
{
text: string;
href: string;
fontSize: number | null;
color: string | null;
}
```
### Data
#### Table
Data table with typed columns and string rows. Supports header styling and striped rows.
```typescript
{
columns: { header: string; width?: string; align?: "left" | "center" | "right" }[];
rows: string[][];
headerBackgroundColor: string | null;
headerTextColor: string | null;
borderColor: string | null;
fontSize: number | null;
striped: boolean | null;
}
```
#### List
Ordered or unordered list.
```typescript
{
items: string[];
ordered: boolean | null;
fontSize: number | null;
color: string | null;
spacing: number | null;
}
```
### Decorative
#### Divider
Horizontal line separator.
```typescript
{
color: string | null;
thickness: number | null;
marginTop: number | null;
marginBottom: number | null;
}
```
#### Spacer
Empty vertical space.
```typescript
{
height: number | null;
}
```
### Page-Level
#### PageNumber
Renders current page number and total pages. Format uses `{pageNumber}` and `{totalPages}` placeholders.
```typescript
{
format: string | null; // default: "{pageNumber} / {totalPages}"
fontSize: number | null;
color: string | null;
align: "left" | "center" | "right" | null;
}
```
## External Store (Controlled Mode)
Pass a `StateStore` to `StateProvider`, `JSONUIProvider`, or `createRenderer` for full control over state:
```tsx
import { createStateStore, type StateStore } from "@json-render/react-pdf";
const store = createStateStore({ invoice: { total: 100 } });
store.set("/invoice/total", 200);
```
When `store` is provided, `initialState` / `state` and `onStateChange` are ignored.
## Server-Safe Import
Import schema and catalog definitions without pulling in React or `@react-pdf/renderer`:
```typescript
import { schema, standardComponentDefinitions } from '@json-render/react-pdf/server';
```
## Sub-path Exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>@json-render/react-pdf</code></td>
<td>Full package: schema, renderer, components, render functions</td>
</tr>
<tr>
<td><code>@json-render/react-pdf/server</code></td>
<td>Schema and catalog definitions only (no React)</td>
</tr>
<tr>
<td><code>@json-render/react-pdf/catalog</code></td>
<td>Standard component definitions and types</td>
</tr>
<tr>
<td><code>@json-render/react-pdf/render</code></td>
<td>Server-side render functions only</td>
</tr>
</tbody>
</table>
## Types
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>ReactPdfSchema</code></td>
<td>Schema type for PDF specs</td>
</tr>
<tr>
<td><code>ReactPdfSpec</code></td>
<td>Spec type for PDF documents</td>
</tr>
<tr>
<td><code>RenderOptions</code></td>
<td>Options for render functions</td>
</tr>
<tr>
<td><code>ComponentContext</code></td>
<td>Typed component render function context</td>
</tr>
<tr>
<td><code>ComponentFn</code></td>
<td>Component render function type</td>
</tr>
<tr>
<td><code>StandardComponentDefinitions</code></td>
<td>Type of the standard component definitions object</td>
</tr>
<tr>
<td><code>StandardComponentProps&lt;K&gt;</code></td>
<td>Inferred props type for a standard component by name</td>
</tr>
</tbody>
</table>
@@ -0,0 +1,416 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/react-three-fiber")
# @json-render/react-three-fiber
React Three Fiber renderer for json-render. 19 built-in 3D components for meshes, lights, models, environments, text, cameras, and controls.
## Installation
```bash
npm install @json-render/react-three-fiber @json-render/core @json-render/react @react-three/fiber @react-three/drei three zod
```
## Entry Points
<table>
<thead>
<tr>
<th>Entry Point</th>
<th>Exports</th>
<th>Use For</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>@json-render/react-three-fiber</code></td>
<td><code>threeComponents</code>, <code>ThreeRenderer</code>, <code>ThreeCanvas</code>, schemas</td>
<td>React Three Fiber implementations and renderer</td>
</tr>
<tr>
<td><code>@json-render/react-three-fiber/catalog</code></td>
<td><code>threeComponentDefinitions</code></td>
<td>Catalog schemas (no R3F dependency, safe for server)</td>
</tr>
</tbody>
</table>
## Usage
```tsx
import {'{ defineCatalog }'} from "@json-render/core";
import {'{ schema, defineRegistry }'} from "@json-render/react";
import {'{'}
threeComponentDefinitions,
threeComponents,
ThreeCanvas,
{'}'} from "@json-render/react-three-fiber";
const catalog = defineCatalog(schema, {'{'}
components: {'{'}
Box: threeComponentDefinitions.Box,
Sphere: threeComponentDefinitions.Sphere,
AmbientLight: threeComponentDefinitions.AmbientLight,
DirectionalLight: threeComponentDefinitions.DirectionalLight,
OrbitControls: threeComponentDefinitions.OrbitControls,
{'}'},
actions: {'{}'},
{'}'});
const {'{ registry }'} = defineRegistry(catalog, {'{'}
components: {'{'}
Box: threeComponents.Box,
Sphere: threeComponents.Sphere,
AmbientLight: threeComponents.AmbientLight,
DirectionalLight: threeComponents.DirectionalLight,
OrbitControls: threeComponents.OrbitControls,
{'}'},
{'}'});
```
### ThreeCanvas (convenience)
```tsx
<ThreeCanvas
spec={'{spec}'}
registry={'{registry}'}
shadows
camera={'{'}{'{ position: [5, 5, 5], fov: 50 }'}{'}'}
style={'{'}{'{ width: "100%", height: "100vh" }'}{'}'}
/>
```
### Manual Canvas Setup
```tsx
import {'{ Canvas }'} from "@react-three/fiber";
import {'{ ThreeRenderer }'} from "@json-render/react-three-fiber";
<Canvas shadows>
<ThreeRenderer spec={'{spec}'} registry={'{registry}'} />
</Canvas>
```
## Components
### Primitives
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
<th>Key Props</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Box</code></td>
<td>Box mesh (default 1x1x1)</td>
<td><code>width</code>, <code>height</code>, <code>depth</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Sphere</code></td>
<td>Sphere mesh</td>
<td><code>radius</code>, <code>widthSegments</code>, <code>heightSegments</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Cylinder</code></td>
<td>Cylinder mesh</td>
<td><code>radiusTop</code>, <code>radiusBottom</code>, <code>height</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Cone</code></td>
<td>Cone mesh</td>
<td><code>radius</code>, <code>height</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Torus</code></td>
<td>Torus (donut) mesh</td>
<td><code>radius</code>, <code>tube</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Plane</code></td>
<td>Flat plane mesh</td>
<td><code>width</code>, <code>height</code>, <code>material</code></td>
</tr>
<tr>
<td><code>Capsule</code></td>
<td>Capsule mesh</td>
<td><code>radius</code>, <code>length</code>, <code>material</code></td>
</tr>
</tbody>
</table>
All primitives share: <code>position</code>, <code>rotation</code>, <code>scale</code>, <code>castShadow</code>, <code>receiveShadow</code>, <code>material</code>.
### Material Schema
<table>
<thead>
<tr>
<th>Property</th>
<th>Type</th>
<th>Default</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>color</code></td>
<td><code>string</code></td>
<td><code>"#ffffff"</code></td>
</tr>
<tr>
<td><code>metalness</code></td>
<td><code>number</code></td>
<td><code>0</code></td>
</tr>
<tr>
<td><code>roughness</code></td>
<td><code>number</code></td>
<td><code>1</code></td>
</tr>
<tr>
<td><code>emissive</code></td>
<td><code>string</code></td>
<td><code>"#000000"</code></td>
</tr>
<tr>
<td><code>emissiveIntensity</code></td>
<td><code>number</code></td>
<td><code>1</code></td>
</tr>
<tr>
<td><code>opacity</code></td>
<td><code>number</code></td>
<td><code>1</code></td>
</tr>
<tr>
<td><code>transparent</code></td>
<td><code>boolean</code></td>
<td><code>false</code></td>
</tr>
<tr>
<td><code>wireframe</code></td>
<td><code>boolean</code></td>
<td><code>false</code></td>
</tr>
</tbody>
</table>
### Lights
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
<th>Key Props</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>AmbientLight</code></td>
<td>Uniform illumination</td>
<td><code>color</code>, <code>intensity</code></td>
</tr>
<tr>
<td><code>DirectionalLight</code></td>
<td>Sunlight-style</td>
<td><code>position</code>, <code>color</code>, <code>intensity</code>, <code>castShadow</code></td>
</tr>
<tr>
<td><code>PointLight</code></td>
<td>Radiates from a point</td>
<td><code>position</code>, <code>color</code>, <code>intensity</code>, <code>distance</code>, <code>decay</code></td>
</tr>
<tr>
<td><code>SpotLight</code></td>
<td>Cone of light</td>
<td><code>position</code>, <code>color</code>, <code>intensity</code>, <code>angle</code>, <code>penumbra</code></td>
</tr>
</tbody>
</table>
### Other Components
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
<th>Key Props</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Group</code></td>
<td>Container for children</td>
<td><code>position</code>, <code>rotation</code>, <code>scale</code></td>
</tr>
<tr>
<td><code>Model</code></td>
<td>GLTF/GLB model loader</td>
<td><code>url</code>, <code>position</code>, <code>rotation</code>, <code>scale</code></td>
</tr>
<tr>
<td><code>Environment</code></td>
<td>HDRI environment map</td>
<td><code>preset</code>, <code>background</code>, <code>blur</code>, <code>intensity</code></td>
</tr>
<tr>
<td><code>Fog</code></td>
<td>Linear fog effect</td>
<td><code>color</code>, <code>near</code>, <code>far</code></td>
</tr>
<tr>
<td><code>GridHelper</code></td>
<td>Reference grid</td>
<td><code>size</code>, <code>divisions</code>, <code>color</code></td>
</tr>
<tr>
<td><code>Text3D</code></td>
<td>3D text (SDF)</td>
<td><code>text</code>, <code>fontSize</code>, <code>color</code>, <code>anchorX</code>, <code>anchorY</code></td>
</tr>
<tr>
<td><code>PerspectiveCamera</code></td>
<td>Camera</td>
<td><code>position</code>, <code>fov</code>, <code>near</code>, <code>far</code>, <code>makeDefault</code></td>
</tr>
<tr>
<td><code>OrbitControls</code></td>
<td>Camera controls</td>
<td><code>enableDamping</code>, <code>enableZoom</code>, <code>autoRotate</code></td>
</tr>
</tbody>
</table>
## Shared Schemas
Reusable Zod schemas for custom 3D components:
```tsx
import {'{ vector3Schema, materialSchema, transformProps, shadowProps }'} from "@json-render/react-three-fiber";
```
<table>
<thead>
<tr>
<th>Export</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>vector3Schema</code></td>
<td><code>z.tuple([z.number(), z.number(), z.number()])</code></td>
</tr>
<tr>
<td><code>materialSchema</code></td>
<td>Standard material props (color, metalness, roughness, etc.)</td>
</tr>
<tr>
<td><code>transformProps</code></td>
<td><code>{'{ position, rotation, scale }'}</code> schema fields</td>
</tr>
<tr>
<td><code>shadowProps</code></td>
<td><code>{'{ castShadow, receiveShadow }'}</code> schema fields</td>
</tr>
</tbody>
</table>
## ThreeRenderer
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>spec</code></td>
<td><code>Spec | null</code></td>
<td>The spec to render as a 3D scene</td>
</tr>
<tr>
<td><code>registry</code></td>
<td><code>ComponentRegistry</code></td>
<td>Component registry from <code>defineRegistry</code></td>
</tr>
<tr>
<td><code>store</code></td>
<td><code>StateStore</code></td>
<td>External state store (controlled mode)</td>
</tr>
<tr>
<td><code>initialState</code></td>
<td><code>Record&lt;string, unknown&gt;</code></td>
<td>Initial state (uncontrolled mode)</td>
</tr>
<tr>
<td><code>handlers</code></td>
<td><code>Record&lt;string, Function&gt;</code></td>
<td>Action handlers</td>
</tr>
<tr>
<td><code>loading</code></td>
<td><code>boolean</code></td>
<td>Whether the spec is streaming</td>
</tr>
<tr>
<td><code>children</code></td>
<td><code>ReactNode</code></td>
<td>Additional R3F elements alongside the spec</td>
</tr>
</tbody>
</table>
## ThreeCanvas
Extends <code>ThreeRendererProps</code> with Canvas options:
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>shadows</code></td>
<td><code>boolean</code></td>
<td>Enable shadow maps</td>
</tr>
<tr>
<td><code>camera</code></td>
<td><code>object</code></td>
<td>Default camera config (position, fov, etc.)</td>
</tr>
<tr>
<td><code>className</code></td>
<td><code>string</code></td>
<td>CSS class for the canvas container</td>
</tr>
<tr>
<td><code>style</code></td>
<td><code>CSSProperties</code></td>
<td>Inline styles for the canvas container</td>
</tr>
</tbody>
</table>
## Type Helpers
```tsx
import type {'{ ThreeProps }'} from "@json-render/react-three-fiber";
type BoxProps = ThreeProps<"Box">;
type SphereProps = ThreeProps<"Sphere">;
```
+92 -2
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/react API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/react")
# @json-render/react
@@ -9,11 +10,57 @@ React components, providers, and hooks.
### StateProvider
```tsx
<StateProvider initialState={object}>
<StateProvider initialState={object} onStateChange={fn}>
{children}
</StateProvider>
```
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>store</code></td>
<td><code>StateStore</code></td>
<td>External store (controlled mode). When provided, <code>initialState</code> and <code>onStateChange</code> are ignored.</td>
</tr>
<tr>
<td><code>initialState</code></td>
<td><code>Record&lt;string, unknown&gt;</code></td>
<td>Initial state model (uncontrolled mode).</td>
</tr>
<tr>
<td><code>onStateChange</code></td>
<td><code>{'(changes: Array<{ path: string; value: unknown }>) => void'}</code></td>
<td>Callback when state changes (uncontrolled mode). Called once per <code>set</code> or <code>update</code> with all changed entries.</td>
</tr>
</tbody>
</table>
#### External Store (Controlled Mode)
Pass a `StateStore` to bypass the internal state and wire json-render to any state management library:
```tsx
import { createStateStore, type StateStore } from "@json-render/react";
const store = createStateStore({ count: 0 });
<StateProvider store={store}>
{children}
</StateProvider>
// Mutate from anywhere — React re-renders automatically:
store.set("/count", 1);
```
The `store` prop is also available on `JSONUIProvider` and `createRenderer`.
### ActionProvider
```tsx
@@ -83,6 +130,40 @@ const { registry } = defineRegistry(catalog, {
type Registry = Record<string, React.ComponentType<ComponentRenderProps>>;
```
### JSONUIProvider
Convenience wrapper that combines `StateProvider`, `VisibilityProvider`, `ValidationProvider`, and `ActionProvider`. Accepts all their props plus:
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>functions</code></td>
<td><code>Record&lt;string, ComputedFunction&gt;</code></td>
<td>Named functions for <code>$computed</code> expressions in props</td>
</tr>
</tbody>
</table>
```tsx
<JSONUIProvider
spec={spec}
catalog={catalog}
handlers={{ submit: async () => { /* ... */ } }}
functions={{ fullName: (args) => `${args.first} ${args.last}` }}
>
<Renderer spec={spec} registry={registry} />
</JSONUIProvider>
```
The `functions` prop is also available on `createRenderer`.
### Component Props (via defineRegistry)
```tsx
@@ -211,6 +292,15 @@ const {
`ValidationConfig` is `{ checks?: ValidationCheck[], validateOn?: 'change' | 'blur' | 'submit' }`.
### useOptionalValidation
Non-throwing variant of `useValidation()`. Returns `null` when no `ValidationProvider` is present, instead of throwing. Useful in components that may or may not be rendered inside a validation context.
```typescript
const validation = useOptionalValidation();
// ValidationContextValue | null
```
### useBoundProp
Two-way binding helper for `$bindState` / `$bindItem` expressions. Returns `[value, setValue]` where `setValue` writes back to the bound state path.
+104
View File
@@ -0,0 +1,104 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/redux")
# @json-render/redux
Redux / Redux Toolkit adapter for json-render's `StateStore` interface.
## Installation
```bash
npm install @json-render/redux @json-render/core @json-render/react redux
# or with Redux Toolkit (recommended):
npm install @json-render/redux @json-render/core @json-render/react @reduxjs/toolkit
```
## reduxStateStore
Create a `StateStore` backed by a Redux store.
```typescript
import { reduxStateStore } from "@json-render/redux";
```
### Options
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Required</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>store</code></td>
<td><code>Store</code></td>
<td>Yes</td>
<td>The Redux store instance.</td>
</tr>
<tr>
<td><code>selector</code></td>
<td><code>{'(state: S) => StateModel'}</code></td>
<td>No</td>
<td>Select the json-render slice from the Redux state tree. Defaults to <code>{'(state) => state'}</code>.</td>
</tr>
<tr>
<td><code>dispatch</code></td>
<td><code>{'(nextState: StateModel, store: Store) => void'}</code></td>
<td>Yes</td>
<td>Dispatch an action that replaces the selected slice with the next state.</td>
</tr>
</tbody>
</table>
### Example
```typescript
import { configureStore, createSlice } from "@reduxjs/toolkit";
import { reduxStateStore } from "@json-render/redux";
import { StateProvider } from "@json-render/react";
const uiSlice = createSlice({
name: "ui",
initialState: { count: 0 } as Record<string, unknown>,
reducers: {
replaceUiState: (_state, action) => action.payload,
},
});
const reduxStore = configureStore({
reducer: { ui: uiSlice.reducer },
});
const store = reduxStateStore({
store: reduxStore,
selector: (state) => state.ui,
dispatch: (next, s) => s.dispatch(uiSlice.actions.replaceUiState(next)),
});
```
```tsx
<StateProvider store={store}>
{/* json-render reads/writes go through Redux */}
</StateProvider>
```
## Re-exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Source</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>StateStore</code></td>
<td><code>@json-render/core</code></td>
</tr>
</tbody>
</table>
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/remotion API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/remotion")
# @json-render/remotion
+227 -53
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "@json-render/shadcn API" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/shadcn")
# @json-render/shadcn
@@ -14,10 +15,27 @@ Your app must have Tailwind CSS configured.
## Entry Points
| Entry Point | Exports | Use For |
|-------------|---------|---------|
| `@json-render/shadcn` | `shadcnComponents` | React implementations |
| `@json-render/shadcn/catalog` | `shadcnComponentDefinitions` | Catalog schemas (no React dependency, safe for server) |
<table>
<thead>
<tr>
<th>Entry Point</th>
<th>Exports</th>
<th>Use For</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>@json-render/shadcn</code></td>
<td><code>shadcnComponents</code></td>
<td>React implementations</td>
</tr>
<tr>
<td><code>@json-render/shadcn/catalog</code></td>
<td><code>shadcnComponentDefinitions</code></td>
<td>Catalog schemas (no React dependency, safe for server)</td>
</tr>
</tbody>
</table>
## Usage
@@ -102,69 +120,225 @@ const { registry } = defineRegistry(catalog, {
### Layout
| Component | Description |
|-----------|-------------|
| `Card` | Container card with optional title, description, maxWidth, centered |
| `Stack` | Flex container with direction, gap, align, justify |
| `Grid` | Grid layout with columns (1-6) and gap |
| `Separator` | Visual separator line with orientation |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Card</code></td>
<td>Container card with optional title, description, maxWidth, centered</td>
</tr>
<tr>
<td><code>Stack</code></td>
<td>Flex container with direction, gap, align, justify</td>
</tr>
<tr>
<td><code>Grid</code></td>
<td>Grid layout with columns (1-6) and gap</td>
</tr>
<tr>
<td><code>Separator</code></td>
<td>Visual separator line with orientation</td>
</tr>
</tbody>
</table>
### Navigation
| Component | Description |
|-----------|-------------|
| `Tabs` | Tabbed navigation with tabs array, defaultValue, value |
| `Accordion` | Collapsible sections with items array and type (single/multiple) |
| `Collapsible` | Single collapsible section with title and defaultOpen |
| `Pagination` | Page navigation with totalPages and page |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Tabs</code></td>
<td>Tabbed navigation with tabs array, defaultValue, value</td>
</tr>
<tr>
<td><code>Accordion</code></td>
<td>Collapsible sections with items array and type (single/multiple)</td>
</tr>
<tr>
<td><code>Collapsible</code></td>
<td>Single collapsible section with title and defaultOpen</td>
</tr>
<tr>
<td><code>Pagination</code></td>
<td>Page navigation with totalPages and page</td>
</tr>
</tbody>
</table>
### Overlay
| Component | Description |
|-----------|-------------|
| `Dialog` | Modal dialog with title, description, openPath |
| `Drawer` | Bottom drawer with title, description, openPath |
| `Tooltip` | Hover tooltip with content and text |
| `Popover` | Click-triggered popover with trigger and content |
| `DropdownMenu` | Dropdown menu with label and items array |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Dialog</code></td>
<td>Modal dialog with title, description, openPath</td>
</tr>
<tr>
<td><code>Drawer</code></td>
<td>Bottom drawer with title, description, openPath</td>
</tr>
<tr>
<td><code>Tooltip</code></td>
<td>Hover tooltip with content and text</td>
</tr>
<tr>
<td><code>Popover</code></td>
<td>Click-triggered popover with trigger and content</td>
</tr>
<tr>
<td><code>DropdownMenu</code></td>
<td>Dropdown menu with label and items array</td>
</tr>
</tbody>
</table>
### Content
| Component | Description |
|-----------|-------------|
| `Heading` | Heading text with level (h1-h4) |
| `Text` | Paragraph with variant (body, caption, muted, lead, code) |
| `Image` | Image with alt, width, height |
| `Avatar` | User avatar with src, name, size |
| `Badge` | Status badge with text and variant |
| `Alert` | Alert banner with title, message, type |
| `Carousel` | Horizontally scrollable carousel with items |
| `Table` | Data table with columns and rows |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Heading</code></td>
<td>Heading text with level (h1-h4)</td>
</tr>
<tr>
<td><code>Text</code></td>
<td>Paragraph with variant (body, caption, muted, lead, code)</td>
</tr>
<tr>
<td><code>Image</code></td>
<td>Image with alt, width, height</td>
</tr>
<tr>
<td><code>Avatar</code></td>
<td>User avatar with src, name, size</td>
</tr>
<tr>
<td><code>Badge</code></td>
<td>Status badge with text and variant</td>
</tr>
<tr>
<td><code>Alert</code></td>
<td>Alert banner with title, message, type</td>
</tr>
<tr>
<td><code>Carousel</code></td>
<td>Horizontally scrollable carousel with items</td>
</tr>
<tr>
<td><code>Table</code></td>
<td>Data table with columns and rows</td>
</tr>
</tbody>
</table>
### Feedback
| Component | Description |
|-----------|-------------|
| `Progress` | Progress bar with value, max, label |
| `Skeleton` | Loading placeholder with width, height, rounded |
| `Spinner` | Loading spinner with size and label |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Progress</code></td>
<td>Progress bar with value, max, label</td>
</tr>
<tr>
<td><code>Skeleton</code></td>
<td>Loading placeholder with width, height, rounded</td>
</tr>
<tr>
<td><code>Spinner</code></td>
<td>Loading spinner with size and label</td>
</tr>
</tbody>
</table>
### Input
| Component | Description |
|-----------|-------------|
| `Button` | Clickable button with label, variant, disabled |
| `Link` | Anchor link with label and href |
| `Input` | Text input with label, name, type, placeholder, value, checks |
| `Textarea` | Multi-line text input with label, name, placeholder, rows, value, checks |
| `Select` | Dropdown select with label, name, options, value, checks |
| `Checkbox` | Checkbox with label, name, checked |
| `Radio` | Radio button group with label, name, options, value |
| `Switch` | Toggle switch with label, name, checked |
| `Slider` | Range slider with label, min, max, step, value |
| `Toggle` | Toggle button with label, pressed, variant |
| `ToggleGroup` | Group of toggle buttons with items, type, value |
| `ButtonGroup` | Group of buttons with buttons array and selected |
<table>
<thead>
<tr>
<th>Component</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>Button</code></td>
<td>Clickable button with label, variant, disabled</td>
</tr>
<tr>
<td><code>Link</code></td>
<td>Anchor link with label and href</td>
</tr>
<tr>
<td><code>Input</code></td>
<td>Text input with label, name, type, placeholder, value, checks</td>
</tr>
<tr>
<td><code>Textarea</code></td>
<td>Multi-line text input with label, name, placeholder, rows, value, checks</td>
</tr>
<tr>
<td><code>Select</code></td>
<td>Dropdown select with label, name, options, value, checks</td>
</tr>
<tr>
<td><code>Checkbox</code></td>
<td>Checkbox with label, name, checked</td>
</tr>
<tr>
<td><code>Radio</code></td>
<td>Radio button group with label, name, options, value</td>
</tr>
<tr>
<td><code>Switch</code></td>
<td>Toggle switch with label, name, checked</td>
</tr>
<tr>
<td><code>Slider</code></td>
<td>Range slider with label, min, max, step, value</td>
</tr>
<tr>
<td><code>Toggle</code></td>
<td>Toggle button with label, pressed, variant</td>
</tr>
<tr>
<td><code>ToggleGroup</code></td>
<td>Group of toggle buttons with items, type, value</td>
</tr>
<tr>
<td><code>ButtonGroup</code></td>
<td>Group of buttons with buttons array and selected</td>
</tr>
</tbody>
</table>
## Notes
+201
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import { pageMetadata } from "@/lib/page-metadata";
export const metadata = pageMetadata("docs/api/solid");
# @json-render/solid
SolidJS components, providers, and hooks for rendering json-render specs.
## Installation
<PackageInstall packages="@json-render/core @json-render/solid" />
Peer dependencies: `solid-js ^1.9.0` and `zod ^4.0.0`.
<PackageInstall packages="solid-js zod" />
## Providers
### StateProvider
```tsx
<StateProvider
initialState={{}}
onStateChange={(changes) => console.log(changes)}
>
{/* children */}
</StateProvider>
```
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<code>store</code>
</td>
<td>
<code>StateStore</code>
</td>
<td>
External store (controlled mode). When provided,{" "}
<code>initialState</code> and <code>onStateChange</code> are ignored.
</td>
</tr>
<tr>
<td>
<code>initialState</code>
</td>
<td>
<code>Record&lt;string, unknown&gt;</code>
</td>
<td>Initial state model for uncontrolled mode.</td>
</tr>
<tr>
<td>
<code>onStateChange</code>
</td>
<td>
<code>
{"(changes: Array<{ path: string; value: unknown }>) => void"}
</code>
</td>
<td>Called for uncontrolled state updates.</td>
</tr>
</tbody>
</table>
### ActionProvider
```tsx
<ActionProvider
handlers={{ submit: async (params) => {} }}
navigate={(path) => {}}
>
{/* children */}
</ActionProvider>
```
### VisibilityProvider
```tsx
<VisibilityProvider>{/* children */}</VisibilityProvider>
```
### ValidationProvider
```tsx
<ValidationProvider customFunctions={{ custom: (value) => Boolean(value) }}>
{/* children */}
</ValidationProvider>
```
### JSONUIProvider
Combined provider wrapper for state, visibility, validation, and actions.
```tsx
<JSONUIProvider
registry={registry}
initialState={{}}
handlers={handlers}
validationFunctions={validationFunctions}
>
<Renderer spec={spec} registry={registry} />
</JSONUIProvider>
```
## defineRegistry
Create a typed component registry and action helpers from a catalog.
```tsx
const { registry, handlers, executeAction } = defineRegistry(catalog, {
components: {
Card: (renderProps) => <div>{renderProps.children}</div>,
Button: (renderProps) => (
<button onClick={() => renderProps.emit("press")}>
{renderProps.element.props.label as string}
</button>
),
},
actions: {
submit: async (params, setState, state) => {
// custom action logic
},
},
});
```
## Components
### Renderer
```tsx
<Renderer spec={spec} registry={registry} loading={false} />
```
Renders a `Spec` tree using your registry.
### createRenderer
Build an app-level renderer from catalog + components:
```tsx
const AppRenderer = createRenderer(catalog, {
Card: (renderProps) => <div>{renderProps.children}</div>,
});
<AppRenderer spec={spec} state={{}} onAction={(name, params) => {}} />;
```
## Hooks
- `useStateStore()`
- `useStateValue(path)` - returns an accessor
- `useStateBinding(path)` - returns `[Accessor<T | undefined>, setValue]`
- `useVisibility()` / `useIsVisible(condition)`
- `useActions()` / `useAction(binding)`
- `useValidation()` / `useOptionalValidation()`
- `useFieldValidation(path, config)` - returns accessor-backed `state`, `errors`, and `isValid`
- `useBoundProp(value, bindingPath)`
- `useUIStream(options)`
- `useChatUI(options)`
## Built-in Actions
`ActionProvider` handles these built-in actions:
- `setState`
- `pushState`
- `removeState`
- `validateForm`
## Component Props
Registry components receive:
```ts
interface ComponentRenderProps<P = Record<string, unknown>> {
element: UIElement<string, P>;
children?: JSX.Element;
emit: (event: string) => void;
on: (event: string) => EventHandle;
bindings?: Record<string, string>;
loading?: boolean;
}
```
Use `emit("event")` to dispatch event bindings. Use `on("event")` to access `EventHandle` metadata (`bound`, `shouldPreventDefault`, `emit`).
## Reactivity Notes
- Keep changing reads in JSX expressions, `createMemo`, or `createEffect`.
- Avoid props destructuring in component signatures when you need live updates.
- `StateProvider` and other contexts expose getter-backed values so consumers read live signals.
- `useStateValue`, `useStateBinding`, and `useFieldValidation` expose reactive accessors; call them as functions.
@@ -0,0 +1,126 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/svelte")
# @json-render/svelte
Svelte 5 components, providers, and helpers for rendering json-render specs.
## Installation
<PackageInstall packages="@json-render/core @json-render/svelte" />
Peer dependencies: `svelte ^5.0.0` and `zod ^4.0.0`.
<PackageInstall packages="svelte zod" />
## Components
### Renderer
```svelte
<Renderer
spec={spec} // Spec | null
registry={registry}
loading={false}
/>
```
Renders a spec with your component registry. If `spec` is `null`, it renders nothing.
### JsonUIProvider
Convenience wrapper around `StateProvider`, `VisibilityProvider`, `ValidationProvider`, and `ActionProvider`.
```svelte
<JsonUIProvider
initialState={{}}
handlers={handlers}
validationFunctions={validationFunctions}
>
<Renderer {spec} {registry} />
</JsonUIProvider>
```
## defineRegistry
Create a typed component registry and action handlers from a catalog.
```typescript
import { defineRegistry } from "@json-render/svelte";
const { registry, handlers, executeAction } = defineRegistry(catalog, {
components: {
Card,
Button,
},
actions: {
submit: async (params, setState, state) => {
// custom action logic
},
},
});
```
`handlers` is designed for `JsonUIProvider`/`ActionProvider`. `executeAction` is an imperative helper.
## Component Props
Registry components receive `BaseComponentProps<TProps>`:
```typescript
interface BaseComponentProps<TProps> {
props: TProps;
children?: Snippet;
emit: (event: string) => void;
bindings?: Record<string, string>;
loading?: boolean;
}
```
Use `emit("eventName")` to trigger handlers declared in the spec `on` bindings.
## Context Helpers
Use these helpers inside Svelte components:
- `getStateValue(path)` - read/write state via `.current`
- `getBoundProp(() => value, () => bindingPath)` - write back resolved `$bindState` / `$bindItem` values
- `isVisible(condition)` - evaluate visibility via `.current`
- `getAction(name)` - read a registered action handler via `.current`
- `getFieldValidation(ctx, path, config)` - get field validation state + actions
For advanced usage, access full contexts:
- `getStateContext()`
- `getActionContext()`
- `getVisibilityContext()`
- `getValidationContext()`
- `getOptionalValidationContext()`
## Streaming
### createUIStream
```typescript
const stream = createUIStream({
api: "/api/generate-ui",
onComplete: (spec) => console.log(spec),
});
await stream.send("Create a login form");
console.log(stream.spec);
console.log(stream.isStreaming);
```
### createChatUI
```typescript
const chat = createChatUI({ api: "/api/chat-ui" });
await chat.send("Build a settings panel");
console.log(chat.messages, chat.isStreaming);
```
## Schema Export
Use `schema` from `@json-render/svelte` when defining catalogs for Svelte specs.
+337
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import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/vue")
# @json-render/vue
Vue 3 components, providers, and composables.
## Providers
### StateProvider
```vue
<StateProvider :initial-state="object" :on-state-change="fn">
<!-- children -->
</StateProvider>
```
<table>
<thead>
<tr>
<th>Prop</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>store</code></td>
<td><code>StateStore</code></td>
<td>External store (controlled mode). When provided, <code>initialState</code> and <code>onStateChange</code> are ignored.</td>
</tr>
<tr>
<td><code>initialState</code></td>
<td><code>Record&lt;string, unknown&gt;</code></td>
<td>Initial state model (uncontrolled mode).</td>
</tr>
<tr>
<td><code>onStateChange</code></td>
<td><code>{'(changes: Array<{ path: string; value: unknown }>) => void'}</code></td>
<td>Callback when state changes (uncontrolled mode). Called once per <code>set</code> or <code>update</code> with all changed entries.</td>
</tr>
</tbody>
</table>
#### External Store (Controlled Mode)
Pass a `StateStore` to bypass the internal state and wire json-render to any state management library:
```typescript
import { createStateStore, type StateStore } from "@json-render/vue";
const store = createStateStore({ count: 0 });
```
```vue
<StateProvider :store="store">
<!-- children -->
</StateProvider>
```
```typescript
// Mutate from anywhere — Vue re-renders automatically:
store.set("/count", 1);
```
### ActionProvider
```vue
<ActionProvider :handlers="Record<string, ActionHandler>" :navigate="fn">
<!-- children -->
</ActionProvider>
// type ActionHandler = (params: Record<string, unknown>) => void | Promise<void>;
```
### VisibilityProvider
```vue
<VisibilityProvider>
<!-- children -->
</VisibilityProvider>
```
`VisibilityProvider` reads state from the parent `StateProvider` automatically. Conditions in specs use the `VisibilityCondition` format with `$state` paths (e.g. `{ "$state": "/path" }`, `{ "$state": "/path", "eq": value }`). See [visibility](/docs/visibility) for the full syntax.
### ValidationProvider
```vue
<ValidationProvider :custom-functions="Record<string, ValidationFunction>">
<!-- children -->
</ValidationProvider>
// type ValidationFunction = (value: unknown, args?: object) => boolean | Promise<boolean>;
```
## defineRegistry
Create a type-safe component registry from a catalog. Components receive `props`, `children`, `emit`, `on`, and `loading` with catalog-inferred types.
When the catalog declares actions, the `actions` field is required. When the catalog has no actions (e.g. `actions: {}`), the field is optional. When passing stubs, any `async () => {}` is sufficient.
```typescript
import { h } from "vue";
import { defineRegistry } from "@json-render/vue";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) =>
h("div", { class: "card" }, [h("h3", null, props.title), children]),
Button: ({ props, emit }) =>
h("button", { onClick: () => emit("press") }, props.label),
},
// Required when catalog declares actions:
actions: {
submit: async (params) => { /* ... */ },
},
});
// Pass to <Renderer>
// <Renderer :spec="spec" :registry="registry" />
```
## Components
### Renderer
```vue
<Renderer
:spec="Spec" // The UI spec to render
:registry="Registry" // Component registry (from defineRegistry)
:loading="boolean" // Optional loading state
:fallback="Component" // Optional fallback for unknown types
/>
```
### Component Props (via defineRegistry)
```typescript
import type { VNode } from "vue";
interface ComponentContext<P> {
props: P; // Typed props from catalog
children?: VNode | VNode[]; // Rendered children (for container components)
emit: (event: string) => void; // Emit a named event (always defined)
on: (event: string) => EventHandle; // Get event handle with metadata
loading?: boolean;
bindings?: Record<string, string>; // State paths from $bindState/$bindItem expressions
}
interface EventHandle {
emit: () => void; // Fire the event
shouldPreventDefault: boolean; // Whether any binding requested preventDefault
bound: boolean; // Whether any handler is bound
}
```
Use `emit("press")` for simple event firing. Use `on("click")` when you need metadata like `shouldPreventDefault`:
```typescript
Link: ({ props, on }) => {
const click = on("click");
return h("a", {
href: props.href,
onClick: (e: MouseEvent) => {
if (click.shouldPreventDefault) e.preventDefault();
click.emit();
},
}, props.label);
},
```
### BaseComponentProps
Catalog-agnostic base type for building reusable component libraries that are not tied to a specific catalog:
```typescript
import type { BaseComponentProps } from "@json-render/vue";
const Card = ({ props, children }: BaseComponentProps<{ title?: string }>) =>
h("div", null, [props.title, children]);
```
## Composables
### useStateStore
```typescript
const {
state, // ShallowRef<StateModel> — access with state.value
get, // (path: string) => unknown
set, // (path: string, value: unknown) => void
update, // (updates: Record<string, unknown>) => void
} = useStateStore();
```
> **Note:** `state` is a `ShallowRef<StateModel>`, not a plain object. Use `state.value` to read the current state. This differs from the React renderer.
### useStateValue
```typescript
const value = useStateValue(path: string); // ComputedRef<T | undefined>
```
Returns a `ComputedRef` that automatically updates when the state at `path` changes. Use `.value` to access the current value.
### useStateBinding (deprecated)
> **Deprecated.** Use `$bindState` expressions with `bindings` prop instead.
```typescript
const [value, setValue] = useStateBinding(path: string);
// value: ComputedRef<T | undefined>
// setValue: (value: T) => void
```
### useActions
```typescript
const { execute } = useActions();
// execute(binding: ActionBinding) => Promise<void>
```
### useAction
```typescript
const { execute, isLoading } = useAction(binding: ActionBinding);
// execute: () => Promise<void>
// isLoading: ComputedRef<boolean>
```
### useIsVisible
```typescript
const isVisible = useIsVisible(condition?: VisibilityCondition);
```
### useFieldValidation
```typescript
const {
state, // ComputedRef<FieldValidationState>
validate, // () => ValidationResult
touch, // () => void
clear, // () => void
errors, // ComputedRef<string[]>
isValid, // ComputedRef<boolean>
} = useFieldValidation(path: string, config?: ValidationConfig);
```
`ValidationConfig` is `{ checks?: ValidationCheck[], validateOn?: 'change' | 'blur' | 'submit' }`.
## Differences from `@json-render/react`
<table>
<thead>
<tr>
<th>API</th>
<th>React</th>
<th>Vue</th>
<th>Note</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>useStateStore().state</code></td>
<td><code>StateModel</code> (plain object)</td>
<td><code>ShallowRef&lt;StateModel&gt;</code></td>
<td>Vue reactivity; use <code>state.value</code></td>
</tr>
<tr>
<td><code>useStateValue()</code></td>
<td><code>T | undefined</code></td>
<td><code>ComputedRef&lt;T | undefined&gt;</code></td>
<td>Vue reactivity; use <code>.value</code></td>
</tr>
<tr>
<td><code>useStateBinding()</code></td>
<td><code>[T | undefined, setter]</code></td>
<td><code>[ComputedRef&lt;T | undefined&gt;, setter]</code></td>
<td>Vue reactivity; use <code>value.value</code></td>
</tr>
<tr>
<td><code>useAction().isLoading</code></td>
<td><code>boolean</code></td>
<td><code>ComputedRef&lt;boolean&gt;</code></td>
<td>Vue reactivity; use <code>.value</code></td>
</tr>
<tr>
<td><code>useFieldValidation().state</code></td>
<td><code>FieldValidationState</code></td>
<td><code>ComputedRef&lt;FieldValidationState&gt;</code></td>
<td>Vue reactivity; use <code>.value</code></td>
</tr>
<tr>
<td><code>useFieldValidation().errors</code></td>
<td><code>string[]</code></td>
<td><code>ComputedRef&lt;string[]&gt;</code></td>
<td>Vue reactivity; use <code>.value</code></td>
</tr>
<tr>
<td><code>useFieldValidation().isValid</code></td>
<td><code>boolean</code></td>
<td><code>ComputedRef&lt;boolean&gt;</code></td>
<td>Vue reactivity; use <code>.value</code></td>
</tr>
<tr>
<td><code>VisibilityContextValue.ctx</code></td>
<td><code>CoreVisibilityContext</code></td>
<td><code>ComputedRef&lt;CoreVisibilityContext&gt;</code></td>
<td>Vue reactivity; use <code>ctx.value</code></td>
</tr>
<tr>
<td><code>children</code> type</td>
<td><code>React.ReactNode</code></td>
<td><code>VNode | VNode[]</code></td>
<td>Platform-specific</td>
</tr>
<tr>
<td><code>useBoundProp</code></td>
<td>exported</td>
<td>exported</td>
<td>Same API; returns <code>[value, setValue]</code></td>
</tr>
<tr>
<td><code>VisibilityProviderProps</code></td>
<td>exported</td>
<td>not exported (no props)</td>
<td>Vue uses slot, no prop needed</td>
</tr>
<tr>
<td>Streaming hooks</td>
<td><code>useUIStream</code>, <code>useChatUI</code></td>
<td><code>useUIStream</code>, <code>useChatUI</code></td>
<td>Same API; returns Vue <code>Ref</code> values</td>
</tr>
</tbody>
</table>
@@ -0,0 +1,77 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/xstate")
# @json-render/xstate
[XState Store](https://stately.ai/docs/xstate-store) adapter for json-render's `StateStore` interface.
Requires `@xstate/store` v3+.
## Installation
```bash
npm install @json-render/xstate @json-render/core @json-render/react @xstate/store
```
## xstateStoreStateStore
Create a `StateStore` backed by an `@xstate/store` atom.
```typescript
import { xstateStoreStateStore } from "@json-render/xstate";
```
### Options
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Required</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>atom</code></td>
<td><code>{'Atom<StateModel>'}</code></td>
<td>Yes</td>
<td>An <code>@xstate/store</code> atom (from <code>createAtom</code>) holding the json-render state model.</td>
</tr>
</tbody>
</table>
### Example
```typescript
import { createAtom } from "@xstate/store";
import { xstateStoreStateStore } from "@json-render/xstate";
import { StateProvider } from "@json-render/react";
const uiAtom = createAtom({ count: 0 });
const store = xstateStoreStateStore({ atom: uiAtom });
```
```tsx
<StateProvider store={store}>
{/* json-render reads/writes go through @xstate/store */}
</StateProvider>
```
## Re-exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Source</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>StateStore</code></td>
<td><code>@json-render/core</code></td>
</tr>
</tbody>
</table>
+232
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import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/yaml")
# @json-render/yaml
YAML wire format for json-render. Progressive rendering and surgical edits via streaming YAML.
## Prompt Generation
### yamlPrompt
Generate a YAML-format system prompt from any json-render catalog. Works with catalogs from any renderer.
```typescript
function yamlPrompt(
catalog: Catalog,
options?: YamlPromptOptions
): string
```
```typescript
import { yamlPrompt } from "@json-render/yaml";
const systemPrompt = yamlPrompt(catalog, {
mode: "standalone",
customRules: ["Always use dark theme"],
editModes: ["merge"],
});
```
### YamlPromptOptions
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Default</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>system</code></td>
<td><code>string</code></td>
<td><code>{'\"You are a UI generator that outputs YAML.\"'}</code></td>
<td>Custom system message intro</td>
</tr>
<tr>
<td><code>mode</code></td>
<td><code>{'\"standalone\" | \"inline\"'}</code></td>
<td><code>{'\"standalone\"'}</code></td>
<td>Standalone outputs only YAML; inline allows conversational responses with embedded YAML fences</td>
</tr>
<tr>
<td><code>customRules</code></td>
<td><code>{'string[]'}</code></td>
<td><code>{'[]'}</code></td>
<td>Additional rules appended to the prompt</td>
</tr>
<tr>
<td><code>editModes</code></td>
<td><code>{'EditMode[]'}</code></td>
<td><code>{'[\"merge\"]'}</code></td>
<td>Edit modes to document in the prompt (patch, merge, diff)</td>
</tr>
</tbody>
</table>
## AI SDK Transform
### createYamlTransform
Creates a `TransformStream` that intercepts AI SDK stream chunks and converts YAML spec/edit blocks into json-render patch data parts.
```typescript
function createYamlTransform(
options?: YamlTransformOptions
): TransformStream<StreamChunk, StreamChunk>
```
Recognized fence types:
- <code>{'```yaml-spec'}</code> -- Full YAML spec, parsed progressively
- <code>{'```yaml-edit'}</code> -- Partial YAML, deep-merged with current spec
- <code>{'```yaml-patch'}</code> -- RFC 6902 JSON Patch lines
- <code>{'```diff'}</code> -- Unified diff against serialized spec
### pipeYamlRender
Convenience wrapper that pipes an AI SDK stream through the YAML transform. Drop-in replacement for `pipeJsonRender` from `@json-render/core`.
```typescript
function pipeYamlRender<T>(
stream: ReadableStream<T>,
options?: YamlTransformOptions
): ReadableStream<T>
```
```typescript
import { pipeYamlRender } from "@json-render/yaml";
import { createUIMessageStream, createUIMessageStreamResponse } from "ai";
const stream = createUIMessageStream({
execute: async ({ writer }) => {
writer.merge(pipeYamlRender(result.toUIMessageStream()));
},
});
return createUIMessageStreamResponse({ stream });
```
## Streaming Parser
### createYamlStreamCompiler
Create a streaming YAML compiler that incrementally parses YAML text and emits JSON Patch operations by diffing each successful parse against the previous snapshot.
```typescript
function createYamlStreamCompiler<T>(
initial?: Partial<T>
): YamlStreamCompiler<T>
```
```typescript
import { createYamlStreamCompiler } from "@json-render/yaml";
const compiler = createYamlStreamCompiler<Spec>();
compiler.push("root: main\n");
compiler.push("elements:\n main:\n type: Card\n");
const { result, newPatches } = compiler.flush();
```
### YamlStreamCompiler
<table>
<thead>
<tr>
<th>Method</th>
<th>Returns</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>push(chunk)</code></td>
<td><code>{'{ result: T; newPatches: JsonPatch[] }'}</code></td>
<td>Push a chunk of text, returns current result and new patches</td>
</tr>
<tr>
<td><code>flush()</code></td>
<td><code>{'{ result: T; newPatches: JsonPatch[] }'}</code></td>
<td>Flush remaining buffer, return final result</td>
</tr>
<tr>
<td><code>getResult()</code></td>
<td><code>T</code></td>
<td>Get the current compiled result</td>
</tr>
<tr>
<td><code>getPatches()</code></td>
<td><code>{'JsonPatch[]'}</code></td>
<td>Get all patches applied so far</td>
</tr>
<tr>
<td><code>reset(initial?)</code></td>
<td><code>void</code></td>
<td>Reset to initial state</td>
</tr>
</tbody>
</table>
## Fence Constants
Exported string constants for fence detection in custom parsers:
<table>
<thead>
<tr>
<th>Constant</th>
<th>Value</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>YAML_SPEC_FENCE</code></td>
<td><code>{'\"```yaml-spec\"'}</code></td>
</tr>
<tr>
<td><code>YAML_EDIT_FENCE</code></td>
<td><code>{'\"```yaml-edit\"'}</code></td>
</tr>
<tr>
<td><code>YAML_PATCH_FENCE</code></td>
<td><code>{'\"```yaml-patch\"'}</code></td>
</tr>
<tr>
<td><code>DIFF_FENCE</code></td>
<td><code>{'\"```diff\"'}</code></td>
</tr>
<tr>
<td><code>FENCE_CLOSE</code></td>
<td><code>{'\"```\"'}</code></td>
</tr>
</tbody>
</table>
## Re-exports from @json-render/core
### diffToPatches
Generate RFC 6902 JSON Patch operations that transform one object into another.
```typescript
function diffToPatches(
oldObj: Record<string, unknown>,
newObj: Record<string, unknown>,
basePath?: string
): JsonPatch[]
```
### deepMergeSpec
Deep-merge with RFC 7396 semantics: `null` deletes, arrays replace, objects recurse.
```typescript
function deepMergeSpec(
base: Record<string, unknown>,
patch: Record<string, unknown>
): Record<string, unknown>
```
@@ -0,0 +1,108 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/api/zustand")
# @json-render/zustand
Zustand adapter for json-render's `StateStore` interface.
Requires Zustand v5+. Zustand v4 is not supported due to breaking API changes in the vanilla store interface.
## Installation
```bash
npm install @json-render/zustand @json-render/core @json-render/react zustand
```
## zustandStateStore
Create a `StateStore` backed by a Zustand vanilla store.
```typescript
import { zustandStateStore } from "@json-render/zustand";
```
### Options
<table>
<thead>
<tr>
<th>Option</th>
<th>Type</th>
<th>Required</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>store</code></td>
<td><code>{'StoreApi<S>'}</code></td>
<td>Yes</td>
<td>A Zustand vanilla store (from <code>createStore</code> in <code>zustand/vanilla</code>).</td>
</tr>
<tr>
<td><code>selector</code></td>
<td><code>{'(state: S) => StateModel'}</code></td>
<td>No</td>
<td>Select the json-render slice from the store state. Defaults to the entire state.</td>
</tr>
<tr>
<td><code>updater</code></td>
<td><code>{'(nextState: StateModel, store: StoreApi<S>) => void'}</code></td>
<td>No</td>
<td>Apply a state change back to the store. Defaults to a shallow merge.</td>
</tr>
</tbody>
</table>
### Example
```typescript
import { createStore } from "zustand/vanilla";
import { zustandStateStore } from "@json-render/zustand";
import { StateProvider } from "@json-render/react";
const bearStore = createStore(() => ({
count: 0,
name: "Bear",
}));
const store = zustandStateStore({ store: bearStore });
```
```tsx
<StateProvider store={store}>
{/* json-render reads/writes go through Zustand */}
</StateProvider>
```
### Nested Slice
```typescript
const appStore = createStore(() => ({
ui: { count: 0 },
auth: { token: null },
}));
const store = zustandStateStore({
store: appStore,
selector: (s) => s.ui,
updater: (next, s) => s.setState({ ui: next }),
});
```
## Re-exports
<table>
<thead>
<tr>
<th>Export</th>
<th>Source</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>StateStore</code></td>
<td><code>@json-render/core</code></td>
</tr>
</tbody>
</table>
+3 -2
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "Catalog" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/catalog")
# Catalog
@@ -18,7 +19,7 @@ A catalog is the vocabulary for your UI. While the [schema](/docs/schemas) defin
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react'; // or '@json-render/react-native'
import { schema } from '@json-render/react/schema'; // or '@json-render/react-native/schema'
import { z } from 'zod';
const catalog = defineCatalog(schema, {
+181 -1
View File
@@ -1,9 +1,187 @@
export const metadata = { title: "Changelog" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/changelog")
# Changelog
Notable changes and updates to json-render.
## v0.10.0
February 2026
### New: `@json-render/vue`
Vue 3 renderer for json-render with full feature parity with `@json-render/react`. Data binding, visibility conditions, actions, validation, repeat scopes, streaming, and external store support.
```bash
npm install @json-render/core @json-render/vue
```
```typescript
import { h } from "vue";
import { defineRegistry, Renderer } from "@json-render/vue";
import { schema } from "@json-render/vue/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) =>
h("div", { class: "card" }, [h("h3", null, props.title), children]),
Button: ({ props, emit }) =>
h("button", { onClick: () => emit("press") }, props.label),
},
});
```
Providers: `StateProvider`, `ActionProvider`, `VisibilityProvider`, `ValidationProvider`. Composables: `useStateStore`, `useStateValue`, `useActions`, `useAction`, `useIsVisible`, `useFieldValidation`, `useBoundProp`, `useUIStream`, `useChatUI`.
See the [Vue API reference](/docs/api/vue) for details.
### New: `@json-render/xstate`
[XState Store](https://stately.ai/docs/xstate-store) (atom) adapter for json-render's `StateStore` interface. Wire an `@xstate/store` atom as the state backend for any renderer.
```bash
npm install @json-render/xstate @xstate/store
```
```typescript
import { createAtom } from "@xstate/store";
import { xstateStoreStateStore } from "@json-render/xstate";
const atom = createAtom({ count: 0 });
const store = xstateStoreStateStore({ atom });
```
Requires `@xstate/store` v3+.
### New: `$computed` and `$template` Expressions
Two new prop expression types for dynamic values:
- **`$template`** -- interpolate state values into strings: `{ "$template": "Hello, ${/user/name}!" }`
- **`$computed`** -- call registered functions: `{ "$computed": "fullName", "args": { "first": { "$state": "/form/firstName" } } }`
Register functions via the `functions` prop on `JSONUIProvider` or `createRenderer`. See [Computed Values](/docs/computed-values) for details.
### New: State Watchers
Elements can declare a `watch` field to trigger actions when state values change. Useful for cascading dependencies like country/city selects.
```json
{
"type": "Select",
"props": { "value": { "$bindState": "/form/country" }, "options": ["US", "Canada"] },
"watch": {
"/form/country": { "action": "loadCities", "params": { "country": { "$state": "/form/country" } } }
}
}
```
`watch` is a top-level field on elements (sibling of type/props/children), not inside props. Watchers only fire on value changes, not on initial render. See [Watchers](/docs/watchers) for details.
### New: Cross-Field Validation
New built-in validation functions for cross-field comparisons:
- `equalTo` -- alias for `matches` with clearer semantics
- `lessThan` -- value must be less than another field
- `greaterThan` -- value must be greater than another field
- `requiredIf` -- required only when a condition field is truthy
Validation check args now resolve through `resolvePropValue`, so `$state` expressions work consistently.
### New: `validateForm` Action
Built-in action (React) that validates all registered form fields at once and writes `{ valid, errors }` to state:
```json
{
"on": {
"press": [
{ "action": "validateForm", "params": { "statePath": "/formResult" } },
{ "action": "submitForm" }
]
}
}
```
### Improved: shadcn/ui Validation
All form components now support `checks` and `validateOn` props:
- Checkbox, Radio, Switch added validation support
- `validateOn` controls timing: `"change"` (default for Select, Checkbox, Radio, Switch), `"blur"` (default for Input, Textarea), or `"submit"`
### New Examples
- **Vue example** -- standalone Vue 3 app with custom components
- **Vite Renderers** -- side-by-side React and Vue renderers with shared catalog
---
## v0.9.1
February 2026
### Fixed: Install failure due to private dependency
`@json-render/react`, `@json-render/react-pdf`, and `@json-render/react-native` v0.9.0 failed to install because `@internal/react-state` (a private workspace package) was published as a dependency. The internal package is now bundled into each renderer at build time, so it no longer needs to be resolved from npm.
---
## v0.9.0
February 2026
### New: External State Store
The `StateStore` interface lets you plug in your own state management (Redux, Zustand, Jotai, XState, etc.) instead of the built-in internal store. Pass a `store` prop to `StateProvider`, `JSONUIProvider`, or `createRenderer` for controlled mode.
- Added `StateStore` interface and `createStateStore()` factory to `@json-render/core`
- `StateProvider`, `JSONUIProvider`, and `createRenderer` now accept an optional `store` prop
- When `store` is provided, it becomes the single source of truth (`initialState`/`onStateChange` are ignored)
- When `store` is omitted, everything works exactly as before (fully backward compatible)
- Applied across all platform packages: react, react-native, react-pdf
- Store utilities (`createStoreAdapter`, `immutableSetByPath`, `flattenToPointers`) available via `@json-render/core/store-utils` for building custom adapters
New adapter packages: `@json-render/redux`, `@json-render/zustand`, `@json-render/jotai`.
See the [Data Binding](/docs/data-binding#external-store-controlled-mode) guide for usage.
### Changed: `onStateChange` signature updated (breaking)
The `onStateChange` callback now receives a single array of changed entries instead of being called once per path. This makes batch updates via `update()` easier to handle:
```ts
// Before
onStateChange?: (path: string, value: unknown) => void
// After
onStateChange?: (changes: Array<{ path: string; value: unknown }>) => void
```
The callback is only called when a `set()` or `update()` call actually changes the state. A `set()` call produces a single-element array; an `update()` call produces one array with all changed paths.
### Fixed: Server-safe schema import
`@json-render/react` barrel-imports React contexts that call `createContext`, which crashes in Next.js App Router API routes (RSC runtime strips `createContext`). All docs, examples, and skills now import `schema` from `@json-render/react/schema` instead of `@json-render/react`.
For combined imports, split into separate `schema` (subpath) and client API (main entry) lines:
```ts
import { schema } from "@json-render/react/schema";
import { defineRegistry, Renderer } from "@json-render/react";
```
### Fixed: Chaining actions
Fixed an issue where chaining multiple actions on the same event (e.g. `setState` followed by a custom action) did not execute all actions. Affected `@json-render/react`, `@json-render/react-native`, and `@json-render/react-pdf`.
### Fixed: Zod array inner type resolution
Fixed safely resolving the inner type for Zod arrays in schema introspection, preventing errors when catalog component props use `z.array()`.
---
## v0.8.0
February 2026
@@ -163,6 +341,8 @@ February 2026
### New: Chat Mode (Inline GenUI)
> **Note:** These modes were renamed in v0.12.1 — "Generate" is now "Standalone" and "Chat" is now "Inline". The old names are accepted as deprecated aliases.
json-render now supports two generation modes: **Generate** (JSONL-only, the default) and **Chat** (text + JSONL inline). Chat mode lets the AI respond conversationally with embedded UI specs, ideal for chatbots and copilot experiences.
```typescript
@@ -1,4 +1,5 @@
export const metadata = { title: "Code Export" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/code-export")
# Code Export
@@ -134,6 +135,6 @@ Run the dashboard example and click "Export Project" to see code generation in a
```bash
cd examples/dashboard
pnpm dev
# Open http://localhost:3001
# Open http://dashboard-demo.json-render.localhost:1355
# Generate a widget, then click "Export Project"
```
@@ -0,0 +1,119 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/computed-values")
# Computed Values
Derive dynamic prop values using registered functions or string templates.
## `$template` — String Interpolation
Use `{ "$template": "..." }` to embed state values into a string. References use `${/path}` syntax where the path is a JSON Pointer:
```json
{
"type": "Text",
"props": {
"text": { "$template": "Hello, ${/user/name}! You have ${/inbox/count} messages." }
},
"children": []
}
```
If state is `{ "user": { "name": "Alice" }, "inbox": { "count": 3 } }`, the text renders as "Hello, Alice! You have 3 messages."
Missing paths resolve to an empty string.
## `$computed` — Registered Functions
Use `{ "$computed": "<name>", "args": { ... } }` to call a named function registered in your catalog. Each arg can be a literal value or any prop expression (`$state`, `$item`, `$cond`, etc.):
```json
{
"type": "Text",
"props": {
"text": {
"$computed": "fullName",
"args": {
"first": { "$state": "/form/firstName" },
"last": { "$state": "/form/lastName" }
}
}
},
"children": []
}
```
### Registering Functions
Functions are registered in the catalog and provided at runtime.
**Catalog definition (for AI prompt generation):**
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react/schema';
const catalog = defineCatalog(schema, {
components: { /* ... */ },
functions: {
fullName: {
description: 'Combines first and last name into a full name',
},
formatCurrency: {
description: 'Formats a number as currency',
},
},
});
```
**Runtime implementation:**
```tsx
import { JSONUIProvider } from '@json-render/react';
const functions = {
fullName: (args) => `${args.first ?? ''} ${args.last ?? ''}`.trim(),
formatCurrency: (args) => {
const value = Number(args.value ?? 0);
return new Intl.NumberFormat('en-US', {
style: 'currency',
currency: (args.currency as string) ?? 'USD',
}).format(value);
},
};
<JSONUIProvider registry={registry} functions={functions}>
<Renderer spec={spec} registry={registry} />
</JSONUIProvider>
```
### Using with `createRenderer`
```tsx
const MyRenderer = createRenderer(catalog, components);
<MyRenderer
spec={spec}
functions={functions}
/>
```
## Combining Expressions
`$computed` args can use any expression type. This example computes a total from repeat item fields:
```json
{
"$computed": "lineTotal",
"args": {
"price": { "$item": "price" },
"quantity": { "$item": "quantity" }
}
}
```
## Next
- [Watchers](/docs/watchers) — react to state changes with cascading actions
- [Data Binding](/docs/data-binding) — all expression types
- [Validation](/docs/validation) — validate form inputs
@@ -1,4 +1,5 @@
export const metadata = { title: "Custom Schema & Renderer" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/custom-schema")
# Custom Schema & Renderer
+47 -1
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "Data Binding" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/data-binding")
# Data Binding
@@ -212,6 +213,22 @@ Use `$cond` / `$then` / `$else` to pick a prop value based on a condition:
The condition uses the same [visibility](/docs/visibility) expression format.
## Template Strings
Use `{ "$template": "..." }` to interpolate state values into a string using `${/path}` syntax:
```json
{
"type": "Text",
"props": {
"text": { "$template": "Welcome back, ${/user/name}!" }
},
"children": []
}
```
See [Computed Values](/docs/computed-values) for details on `$template` and `$computed` expressions.
## Quick Reference
<div className="my-6 overflow-x-auto">
@@ -254,10 +271,39 @@ The condition uses the same [visibility](/docs/visibility) expression format.
<td><code>{'{ "$bindItem": "field" }'}</code></td>
<td>Form components inside repeat</td>
</tr>
<tr>
<td><code>{"$template"}</code></td>
<td><code>{'{ "$template": "Hello, ${/name}!" }'}</code></td>
<td>Anywhere (string props)</td>
</tr>
<tr>
<td><code>{"$computed"}</code></td>
<td><code>{'{ "$computed": "fn", "args": { ... } }'}</code></td>
<td>Anywhere (requires registered function)</td>
</tr>
</tbody>
</table>
</div>
## External Store (Controlled Mode)
For advanced use cases, you can pass a `StateStore` to `StateProvider` to use your own state management (Redux, Zustand, XState, etc.) instead of the built-in internal store:
```tsx
import { createStateStore, type StateStore } from "@json-render/react";
const store = createStateStore({ user: { name: "Alice" } });
<StateProvider store={store}>
{children}
</StateProvider>
// Mutate from anywhere — React re-renders automatically:
store.set("/user/name", "Bob");
```
When `store` is provided, `initialState` and `onStateChange` are ignored. The store is the single source of truth. See the [React API reference](/docs/api/react#external-store-controlled-mode) for the full `StateStore` interface.
## Next
- [Visibility](/docs/visibility) — conditionally show or hide elements
@@ -1,16 +1,17 @@
export const metadata = { title: "Generation Modes" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/generation-modes")
# Generation Modes
json-render supports two modes for AI-generated UI: **Generate mode** for standalone UI and **Chat mode** for inline UI within a conversation.
json-render supports two modes for AI-generated UI: **Standalone mode** for standalone UI and **Inline mode** for inline UI within a conversation.
The mode controls how the AI formats its output and how your app processes the stream. The underlying JSONL patch format is the same in both modes.
<GenerationModesDiagram />
## Generate Mode (Standalone)
## Standalone Mode
In generate mode, the AI outputs **only JSONL patches** — no prose, no markdown. The entire response is a UI spec.
In standalone mode, the AI outputs **only JSONL patches** — no prose, no markdown. The entire response is a UI spec.
This is the default mode and is ideal for:
@@ -24,7 +25,7 @@ This is the default mode and is ideal for:
```typescript
import { streamText } from "ai";
// Generate mode is the default (no mode option needed)
// Standalone mode is the default (no mode option needed)
const systemPrompt = catalog.prompt({
customRules: [
"Use Card as root for forms and small UIs.",
@@ -73,9 +74,9 @@ The AI outputs only JSONL — one patch per line, no surrounding text:
{"op":"add","path":"/elements/submit","value":{"type":"Button","props":{"label":"Sign In"}}}
```
## Chat Mode (Inline)
## Inline Mode
In chat mode, the AI responds **conversationally first**, then outputs JSONL patches on their own lines. Text-only replies are allowed when no UI is needed (e.g. greetings, clarifying questions).
In inline mode, the AI responds **conversationally first**, then outputs JSONL patches on their own lines. Text-only replies are allowed when no UI is needed (e.g. greetings, clarifying questions).
This is ideal for:
@@ -91,8 +92,8 @@ import { streamText } from "ai";
import { pipeJsonRender } from "@json-render/core";
import { createUIMessageStream, createUIMessageStreamResponse } from "ai";
// Enable chat mode
const systemPrompt = catalog.prompt({ mode: "chat" });
// Enable inline mode
const systemPrompt = catalog.prompt({ mode: "inline" });
const result = streamText({
model: yourModel,
@@ -179,8 +180,8 @@ If the user asks a simple question ("what does BTC stand for?"), the AI replies
<thead>
<tr>
<th />
<th>Generate</th>
<th>Chat</th>
<th>Standalone</th>
<th>Inline</th>
</tr>
</thead>
<tbody>
@@ -197,7 +198,7 @@ If the user asks a simple question ("what does BTC stand for?"), the AI replies
<tr>
<td>System prompt</td>
<td><code>{"catalog.prompt()"}</code></td>
<td><code>{'catalog.prompt({ mode: "chat" })'}</code></td>
<td><code>{'catalog.prompt({ mode: "inline" })'}</code></td>
</tr>
<tr>
<td>Stream utility</td>
+36 -6
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "Installation" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/installation")
# Installation
@@ -8,6 +9,26 @@ Install the core package plus your renderer of choice.
<PackageInstall packages="@json-render/core @json-render/react" />
Peer dependencies: `react ^19.0.0` and `zod ^4.0.0`.
<PackageInstall packages="react zod" />
## For Vue
<PackageInstall packages="@json-render/core @json-render/vue" />
Peer dependencies: `vue ^3.5.0` and `zod ^4.0.0`.
<PackageInstall packages="vue zod" />
## For Svelte
<PackageInstall packages="@json-render/core @json-render/svelte" />
Peer dependencies: `svelte ^5.0.0` and `zod ^4.0.0`.
<PackageInstall packages="svelte zod" />
## For React UI with shadcn/ui
Pre-built components for fast prototyping and production use:
@@ -24,14 +45,23 @@ Requires Tailwind CSS in your project. See the [@json-render/shadcn API referenc
<PackageInstall packages="@json-render/core @json-render/remotion remotion @remotion/player" />
## Peer Dependencies
## For React Email
json-render requires the following peer dependencies:
<PackageInstall packages="@json-render/core @json-render/react-email @react-email/components @react-email/render" />
- `react` ^19.0.0
- `zod` ^4.0.0
## For External State Management (Optional)
<PackageInstall packages="react zod" />
If you want to wire json-render to an existing state management library instead of the built-in store, install the adapter for your library:
<PackageInstall packages="@json-render/zustand" />
<PackageInstall packages="@json-render/redux" />
<PackageInstall packages="@json-render/jotai" />
<PackageInstall packages="@json-render/xstate" />
See the [Data Binding](/docs/data-binding#external-store-controlled-mode) guide for usage.
## For AI Integration
+7 -1
View File
@@ -1,6 +1,7 @@
import { DocsMobileNav } from "@/components/docs-mobile-nav";
import { DocsSidebar } from "@/components/docs-sidebar";
import { CopyPageButton } from "@/components/copy-page-button";
import { TableOfContents } from "@/components/table-of-contents";
export default function DocsLayout({
children,
@@ -10,7 +11,7 @@ export default function DocsLayout({
return (
<>
<DocsMobileNav />
<div className="max-w-5xl mx-auto px-6 py-8 lg:py-12 flex gap-16">
<div className="max-w-7xl mx-auto px-6 py-8 lg:py-12 flex gap-12">
{/* Sidebar */}
<aside className="w-48 shrink-0 hidden lg:block sticky top-28 h-[calc(100vh-7rem)] overflow-y-auto">
<DocsSidebar />
@@ -23,6 +24,11 @@ export default function DocsLayout({
</div>
<article>{children}</article>
</div>
{/* On this page */}
<aside className="w-44 shrink-0 hidden xl:block sticky top-28 h-[calc(100vh-7rem)] overflow-y-auto">
<TableOfContents />
</aside>
</div>
</>
);
+124 -33
View File
@@ -1,4 +1,5 @@
export const metadata = { title: "Migration Guide" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/migration")
# Migration Guide
@@ -30,15 +31,23 @@ import { StateProvider } from "@json-render/react";
`StateProvider` now manages state internally. Use `useStateStore()` to access `get`, `set`, and `update`.
| Before | After |
|--------|-------|
| `DataProvider` | `StateProvider` |
| `data` prop | `initialState` prop |
| `getValue` / `setValue` props | Removed (use `useStateStore()` hook for `get` / `set`) |
| `useData` | `useStateStore` |
| `useDataValue` | `useStateValue` |
| `useDataBinding` | `useStateBinding` (deprecated, use `useBoundProp` instead) |
| `DataModel` type | `StateModel` type |
<table>
<thead>
<tr>
<th>Before</th>
<th>After</th>
</tr>
</thead>
<tbody>
<tr><td><code>DataProvider</code></td><td><code>StateProvider</code></td></tr>
<tr><td><code>data</code> prop</td><td><code>initialState</code> prop</td></tr>
<tr><td><code>getValue</code> / <code>setValue</code> props</td><td>Removed (use <code>useStateStore()</code> hook for <code>get</code> / <code>set</code>)</td></tr>
<tr><td><code>useData</code></td><td><code>useStateStore</code></td></tr>
<tr><td><code>useDataValue</code></td><td><code>useStateValue</code></td></tr>
<tr><td><code>useDataBinding</code></td><td><code>useStateBinding</code> (deprecated, use <code>useBoundProp</code> instead)</td></tr>
<tr><td><code>DataModel</code> type</td><td><code>StateModel</code> type</td></tr>
</tbody>
</table>
## Dynamic Expressions
@@ -80,10 +89,18 @@ Inside repeat scopes, use `$item` and `$index`:
}
```
| Before | After |
|--------|-------|
| `{ "$path": "/..." }` | `{ "$state": "/..." }` |
| `{ "$data": "/..." }` | `{ "$state": "/..." }` |
<table>
<thead>
<tr>
<th>Before</th>
<th>After</th>
</tr>
</thead>
<tbody>
<tr><td><code>{'{ "$path": "/..." }'}</code></td><td><code>{'{ "$state": "/..." }'}</code></td></tr>
<tr><td><code>{'{ "$data": "/..." }'}</code></td><td><code>{'{ "$state": "/..." }'}</code></td></tr>
</tbody>
</table>
## Two-Way Binding
@@ -292,10 +309,35 @@ const catalog = defineCatalog(schema, {
const prompt = catalog.prompt();
// Chat mode prompt
// Inline mode prompt (formerly "chat")
const inlinePrompt = catalog.prompt({ mode: "inline" });
```
## Generation Modes
The generation mode values passed to `catalog.prompt()` have been renamed for clarity:
- `"generate"` is now `"standalone"`
- `"chat"` is now `"inline"`
The old names are accepted as deprecated aliases, so existing code will continue to work. Update when convenient.
**Before:**
```typescript
const prompt = catalog.prompt({ mode: "generate" });
const chatPrompt = catalog.prompt({ mode: "chat" });
```
**After:**
```typescript
const prompt = catalog.prompt({ mode: "standalone" });
const inlinePrompt = catalog.prompt({ mode: "inline" });
```
The default mode (when no `mode` option is provided) is `"standalone"`, which behaves identically to the previous `"generate"` default.
## Validation
`ValidationCheck` now uses `type` instead of `fn`, `ValidationProvider` uses `customFunctions` instead of `functions`, and `useFieldValidation` takes a config object instead of a checks array.
@@ -314,11 +356,19 @@ const chatPrompt = catalog.prompt({ mode: "chat" });
{ "type": "minLength", "args": { "min": 8 }, "message": "Too short" }
```
| Before | After |
|--------|-------|
| `{ fn: "required" }` | `{ type: "required" }` |
| `ValidationProvider functions={...}` | `ValidationProvider customFunctions={...}` |
| `useFieldValidation(path, checks)` | `useFieldValidation(path, config)` where config is `{ checks, validateOn? }` |
<table>
<thead>
<tr>
<th>Before</th>
<th>After</th>
</tr>
</thead>
<tbody>
<tr><td><code>{'{ fn: "required" }'}</code></td><td><code>{'{ type: "required" }'}</code></td></tr>
<tr><td><code>{'ValidationProvider functions={...}'}</code></td><td><code>{'ValidationProvider customFunctions={...}'}</code></td></tr>
<tr><td><code>useFieldValidation(path, checks)</code></td><td><code>useFieldValidation(path, config)</code> where config is <code>{'{ checks, validateOn? }'}</code></td></tr>
</tbody>
</table>
## Visibility Provider
@@ -397,16 +447,57 @@ Action params in specs now use `statePath` instead of `path`.
The following exports have been removed from `@json-render/core`:
| Removed | Replacement |
|---------|-------------|
| `createCatalog` | `defineCatalog(schema, config)` |
| `generateCatalogPrompt` | `catalog.prompt()` |
| `generateSystemPrompt` | `catalog.prompt()` |
| `ComponentDefinition` | Use catalog component config directly |
| `CatalogConfig` | Use `defineCatalog` parameters |
| `SystemPromptOptions` | Use `PromptOptions` |
| `LogicExpression` | Use `VisibilityCondition` |
| `AuthState` | Model auth as regular state (e.g. `/auth/isSignedIn`) |
| `evaluateLogicExpression` | Use `evaluateVisibility` |
| `createRendererFromCatalog` | Use `defineRegistry` |
| `traverseTree` (codegen) | Use `traverseSpec` |
<table>
<thead>
<tr>
<th>Removed</th>
<th>Replacement</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>createCatalog</code></td>
<td><code>defineCatalog(schema, config)</code></td>
</tr>
<tr>
<td><code>generateCatalogPrompt</code></td>
<td><code>catalog.prompt()</code></td>
</tr>
<tr>
<td><code>generateSystemPrompt</code></td>
<td><code>catalog.prompt()</code></td>
</tr>
<tr>
<td><code>ComponentDefinition</code></td>
<td>Use catalog component config directly</td>
</tr>
<tr>
<td><code>CatalogConfig</code></td>
<td>Use <code>defineCatalog</code> parameters</td>
</tr>
<tr>
<td><code>SystemPromptOptions</code></td>
<td>Use <code>PromptOptions</code></td>
</tr>
<tr>
<td><code>LogicExpression</code></td>
<td>Use <code>VisibilityCondition</code></td>
</tr>
<tr>
<td><code>AuthState</code></td>
<td>Model auth as regular state (e.g. <code>/auth/isSignedIn</code>)</td>
</tr>
<tr>
<td><code>evaluateLogicExpression</code></td>
<td>Use <code>evaluateVisibility</code></td>
</tr>
<tr>
<td><code>createRendererFromCatalog</code></td>
<td>Use <code>defineRegistry</code></td>
</tr>
<tr>
<td><code>traverseTree</code> (codegen)</td>
<td>Use <code>traverseSpec</code></td>
</tr>
</tbody>
</table>
+3 -2
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@@ -1,4 +1,5 @@
export const metadata = { title: "OpenAPI Integration" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/openapi")
# OpenAPI Integration
@@ -99,7 +100,7 @@ Create components that map to OpenAPI data types:
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
export const openapiCatalog = defineCatalog(schema, {
+4 -3
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@@ -1,4 +1,5 @@
export const metadata = { title: "Introduction" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs")
# Introduction
@@ -22,7 +23,7 @@ A catalog declares what AI can use: components with typed props, actions with ty
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
export const catalog = defineCatalog(schema, {
@@ -90,7 +91,7 @@ The result is a native UI built from your own components — not an iframe, not
- **[Streaming](/docs/streaming)** — Render progressively as the AI responds. Each JSONL patch adds to the spec and the UI updates in real time.
- **[Data Binding](/docs/data-binding)** — Bind props to runtime data with `$state` paths, repeat elements over arrays, and wire two-way input bindings.
- **[Visibility](/docs/visibility)** — Show or hide elements based on state conditions. The AI can generate conditional UIs without writing logic.
- **[Generation Modes](/docs/generation-modes)** — Generate standalone UI (playground/builder) or inline UI within a chat conversation.
- **[Generation Modes](/docs/generation-modes)** — Standalone mode for full-page generated UI or inline mode for UI embedded in a conversation.
## Next
@@ -1,4 +1,5 @@
export const metadata = { title: "Quick Start" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/quick-start")
# Quick Start
@@ -11,7 +12,7 @@ Create a catalog that defines what components AI can use:
```typescript
// lib/catalog.ts
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
export const catalog = defineCatalog(schema, {
+29 -2
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@@ -1,4 +1,5 @@
export const metadata = { title: "Registry" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/registry")
# Registry
@@ -8,6 +9,7 @@ What a registry contains depends on the schema you use. Each package defines its
- **`@json-render/react`** — Components (React elements) and action handlers
- **`@json-render/react-native`** — Components (React Native elements) and action handlers
- **`@json-render/react-email`** — Email components (React Email / HTML)
- **`@json-render/remotion`** — Clip components, transitions, and effects
## @json-render/react
@@ -132,7 +134,7 @@ Actions are declared in your [catalog](/docs/catalog). The `@json-render/react`
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react';
import { schema } from '@json-render/react/schema';
import { z } from 'zod';
const catalog = defineCatalog(schema, {
@@ -277,6 +279,31 @@ export const { registry } = defineRegistry(catalog, {
See the [@json-render/react-native API reference](/docs/api/react-native) for the full API.
## @json-render/react-email
`@json-render/react-email` uses `defineRegistry` like React and React Native. Components render to React Email primitives (`@react-email/components`). Use `renderToHtml` or `renderToPlainText` for server-side email output:
```tsx
import { defineRegistry } from '@json-render/react-email';
import { renderToHtml } from '@json-render/react-email';
import { Body, Container, Heading, Text } from '@react-email/components';
export const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) => (
<Container style={{ padding: 16, backgroundColor: '#fff' }}>
<Heading>{props.title}</Heading>
{children}
</Container>
),
},
});
const html = await renderToHtml(spec, { registry });
```
See the [@json-render/react-email API reference](/docs/api/react-email) for the full API.
## @json-render/remotion
`@json-render/remotion` takes a different approach. Instead of `defineRegistry`, it uses a plain component registry with built-in standard components for video production:
+268
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@@ -0,0 +1,268 @@
import { pageMetadata } from "@/lib/page-metadata";
export const metadata = pageMetadata("docs/renderers");
# Renderers
json-render supports multiple output targets. Each renderer takes the same core concept -- a JSON spec constrained to a catalog -- and renders it natively on a different platform or into a different format.
All renderers share the same workflow:
1. Define a catalog with `defineCatalog`
2. AI generates a JSON spec
3. The renderer turns the spec into platform-native output
<table>
<thead>
<tr>
<th>Renderer</th>
<th>Package</th>
<th>Output</th>
</tr>
</thead>
<tbody>
<tr>
<td>React</td>
<td>
<code>@json-render/react</code>
</td>
<td>React component tree</td>
</tr>
<tr>
<td>Vue</td>
<td>
<code>@json-render/vue</code>
</td>
<td>Vue 3 component tree</td>
</tr>
<tr>
<td>Svelte</td>
<td>
<code>@json-render/svelte</code>
</td>
<td>Svelte 5 component tree</td>
</tr>
<tr>
<td>Solid</td>
<td>
<code>@json-render/solid</code>
</td>
<td>SolidJS component tree</td>
</tr>
<tr>
<td>shadcn/ui</td>
<td>
<code>@json-render/shadcn</code>
</td>
<td>Pre-built Radix UI + Tailwind components (uses React renderer)</td>
</tr>
<tr>
<td>React Native</td>
<td>
<code>@json-render/react-native</code>
</td>
<td>Native mobile views</td>
</tr>
<tr>
<td>Image</td>
<td>
<code>@json-render/image</code>
</td>
<td>SVG / PNG (via Satori)</td>
</tr>
<tr>
<td>React PDF</td>
<td>
<code>@json-render/react-pdf</code>
</td>
<td>PDF documents</td>
</tr>
<tr>
<td>Remotion</td>
<td>
<code>@json-render/remotion</code>
</td>
<td>Video compositions</td>
</tr>
</tbody>
</table>
## React
Render specs as React component trees in the browser. Supports data binding, streaming, actions, validation, visibility, and computed values.
```tsx
import { defineRegistry, Renderer } from "@json-render/react";
import { schema } from "@json-render/react/schema";
const { registry } = defineRegistry(catalog, { components });
<Renderer spec={spec} registry={registry} />;
```
Use `StateProvider`, `VisibilityProvider`, and `ActionProvider` for full interactivity. See the [@json-render/react API reference](/docs/api/react) for details.
## Vue
Vue 3 renderer with full feature parity with React: data binding, visibility, actions, validation, repeat scopes, and streaming.
```typescript
import { defineRegistry, Renderer } from "@json-render/vue";
import { schema } from "@json-render/vue/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) =>
h("div", { class: "card" }, [h("h3", null, props.title), children]),
},
});
```
Uses composables (`useStateStore`, `useStateBinding`, `useActions`, etc.) instead of React hooks. See the [@json-render/vue API reference](/docs/api/vue) for details.
## Svelte
Svelte 5 renderer with runes-compatible context helpers, visibility conditions, actions, and streaming support.
```typescript
import { defineRegistry, Renderer } from "@json-render/svelte";
import { schema } from "@json-render/svelte/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: ({ props, children }) => /* Svelte snippet */,
},
});
```
See the [@json-render/svelte API reference](/docs/api/svelte) for details.
## Solid
SolidJS renderer with fine-grained reactivity, state bindings, validation, visibility, and event-driven actions.
```tsx
import { defineRegistry, Renderer } from "@json-render/solid";
import { schema } from "@json-render/solid/schema";
const { registry } = defineRegistry(catalog, {
components: {
Card: (renderProps) => <div>{renderProps.children}</div>,
},
});
<Renderer spec={spec} registry={registry} />;
```
See the [@json-render/solid API reference](/docs/api/solid) for details.
## shadcn/ui
36 pre-built components using Radix UI and Tailwind CSS. Built on top of `@json-render/react` -- no custom renderer needed.
```tsx
import { defineCatalog } from "@json-render/core";
import { schema } from "@json-render/react/schema";
import { defineRegistry, Renderer } from "@json-render/react";
import { shadcnComponentDefinitions } from "@json-render/shadcn/catalog";
import { shadcnComponents } from "@json-render/shadcn";
const catalog = defineCatalog(schema, {
components: {
Card: shadcnComponentDefinitions.Card,
Button: shadcnComponentDefinitions.Button,
},
});
const { registry } = defineRegistry(catalog, {
components: {
Card: shadcnComponents.Card,
Button: shadcnComponents.Button,
},
});
```
See the [@json-render/shadcn API reference](/docs/api/shadcn) for the full component list.
## React Native
Render specs as native mobile views. Includes 25+ standard components and standard action definitions.
```tsx
import { defineCatalog } from "@json-render/core";
import { schema } from "@json-render/react-native/schema";
import {
standardComponentDefinitions,
standardActionDefinitions,
} from "@json-render/react-native/catalog";
import { defineRegistry, Renderer } from "@json-render/react-native";
const catalog = defineCatalog(schema, {
components: { ...standardComponentDefinitions },
actions: standardActionDefinitions,
});
const { registry } = defineRegistry(catalog, { components: {} });
<Renderer spec={spec} registry={registry} />;
```
See the [@json-render/react-native API reference](/docs/api/react-native) for details.
## Image
Generate SVG and PNG images from JSON specs using Satori. Ideal for OG images, social cards, and banners.
```typescript
import { renderToSvg, renderToPng } from "@json-render/image/render";
const svg = await renderToSvg(spec, { fonts });
const png = await renderToPng(spec, { fonts });
```
Nine standard components: Frame, Box, Row, Column, Heading, Text, Image, Divider, Spacer. PNG output requires `@resvg/resvg-js` as an optional peer dependency.
See the [@json-render/image API reference](/docs/api/image) for details.
## React PDF
Generate PDF documents from JSON specs using `@react-pdf/renderer`. Render to buffer, stream, or file.
```typescript
import {
renderToBuffer,
renderToStream,
renderToFile,
} from "@json-render/react-pdf";
const buffer = await renderToBuffer(spec);
const stream = await renderToStream(spec);
await renderToFile(spec, "./output.pdf");
```
Standard components include Document, Page, View, Row, Column, Heading, Text, Image, Table, List, Divider, Spacer, Link, and PageNumber.
See the [@json-render/react-pdf API reference](/docs/api/react-pdf) for details.
## Remotion
Turn JSON timeline specs into video compositions with Remotion.
```tsx
import { Player } from "@remotion/player";
import { Renderer } from "@json-render/remotion";
<Player
component={Renderer}
inputProps={{ spec }}
durationInFrames={spec.composition.durationInFrames}
fps={spec.composition.fps}
compositionWidth={spec.composition.width}
compositionHeight={spec.composition.height}
/>;
```
Uses a timeline spec format with compositions, tracks, and clips. Includes standard components (TitleCard, TypingText, ImageSlide, etc.), transitions (fade, slide, zoom, wipe), and effects.
See the [@json-render/remotion API reference](/docs/api/remotion) for details.
## Custom Renderers
You can build your own renderer for any output target. See the [Custom Schema & Renderer](/docs/custom-schema) guide for how to define a custom schema and wire it to your own rendering logic.
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@@ -1,4 +1,5 @@
export const metadata = { title: "Schemas" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/schemas")
# Schemas
+123
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@@ -0,0 +1,123 @@
import { pageMetadata } from "@/lib/page-metadata";
export const metadata = pageMetadata("docs/skills");
# Skills
json-render ships with skills that teach AI coding agents how to use each package. Install a skill and your agent in Cursor, Claude Code, or Codex can generate json-render UIs without manual guidance.
## Available Skills
- **core** — Core schemas, catalogs, and AI prompt generation.
- **react** — React renderer that turns JSON specs into React component trees.
- **react-pdf** — PDF renderer using `@react-pdf/renderer`.
- **react-email** — Email renderer that produces HTML or plain-text emails.
- **react-native** — React Native renderer for native mobile UIs.
- **shadcn** — Pre-built shadcn/ui components (Radix UI + Tailwind).
- **image** — Image renderer that turns JSON specs into SVG and PNG via Satori.
- **remotion** — Remotion renderer for video generation from JSON timeline specs.
- **vue** — Vue 3 renderer for Vue component trees.
- **svelte** — Svelte 5 renderer for Svelte component trees.
- **solid** — SolidJS renderer for fine-grained reactive component trees.
- **codegen** — Code generation utilities for building custom exporters.
- **mcp** — MCP Apps integration for Claude, ChatGPT, Cursor, and VS Code.
- **redux** — Redux adapter for json-render's `StateStore` interface.
- **zustand** — Zustand adapter for json-render's `StateStore` interface.
- **jotai** — Jotai adapter for json-render's `StateStore` interface.
- **xstate** — XState Store adapter for json-render's `StateStore` interface.
## Installation
```bash
npx skills add vercel-labs/json-render --skill core
npx skills add vercel-labs/json-render --skill react
npx skills add vercel-labs/json-render --skill react-pdf
npx skills add vercel-labs/json-render --skill react-email
npx skills add vercel-labs/json-render --skill react-native
npx skills add vercel-labs/json-render --skill shadcn
npx skills add vercel-labs/json-render --skill image
npx skills add vercel-labs/json-render --skill remotion
npx skills add vercel-labs/json-render --skill vue
npx skills add vercel-labs/json-render --skill svelte
npx skills add vercel-labs/json-render --skill solid
npx skills add vercel-labs/json-render --skill codegen
npx skills add vercel-labs/json-render --skill mcp
npx skills add vercel-labs/json-render --skill redux
npx skills add vercel-labs/json-render --skill zustand
npx skills add vercel-labs/json-render --skill jotai
npx skills add vercel-labs/json-render --skill xstate
```
After installing, your AI agent will automatically activate the right skill when it encounters a matching request.
## core
The foundational skill. Teaches agents how to define catalogs, create schemas, build specs, and generate AI prompts. This is the starting point for any json-render project and covers `defineCatalog`, `defineSchema`, `specSchema`, `toPrompt`, and the full spec format.
## react
Teaches agents how to render JSON specs as React component trees using `JsonRender`, `JsonRenderClient`, and `useJsonRender`. Covers custom component registries, client-side interactivity, state management, and streaming integration.
## react-pdf
Teaches agents how to generate PDFs from JSON specs using `@react-pdf/renderer`. Covers the PDF-specific component registry, page layout, and styling.
## react-email
Teaches agents how to render JSON specs as HTML or plain-text emails using React Email components. Covers the email-specific registry and rendering pipeline.
## react-native
Teaches agents how to render JSON specs as native mobile UIs with React Native. Covers the native component registry and platform-specific considerations.
## shadcn
Teaches agents how to use the pre-built shadcn/ui component registry with json-render. Includes Radix UI primitives, Tailwind styling, and the full set of available shadcn components.
## image
Teaches agents how to turn JSON specs into SVG and PNG images using Satori. Covers the image-specific registry, dimensions, fonts, and rendering options.
## remotion
Teaches agents how to generate videos from JSON timeline specs using Remotion. Covers compositions, sequences, timeline structure, and video rendering.
## vue
Teaches agents how to render JSON specs as Vue 3 component trees. Covers the Vue renderer API, custom component registries, and reactivity integration.
## svelte
Teaches agents how to render JSON specs as Svelte 5 component trees. Covers the Svelte renderer API and component registration.
## solid
Teaches agents how to render JSON specs as SolidJS component trees. Covers Solid-specific reactive patterns, provider wiring, bindings, actions, and streaming.
## codegen
Teaches agents how to use code generation utilities to export UI specs as framework-specific source code. Covers the codegen pipeline and custom exporter creation.
## mcp
Teaches agents how to build MCP Apps that serve json-render UIs inside AI tools like Claude, ChatGPT, Cursor, and VS Code. Covers MCP server setup, tool definitions, and UI streaming.
## redux
Teaches agents how to connect a Redux store to json-render's `StateStore` interface for state-driven UIs.
## zustand
Teaches agents how to connect a Zustand store to json-render's `StateStore` interface for lightweight state management.
## jotai
Teaches agents how to connect Jotai atoms to json-render's `StateStore` interface for atomic state management.
## xstate
Teaches agents how to connect an XState Store to json-render's `StateStore` interface for state-machine-driven UIs.
## Source
All skill files are in the [`skills/`](https://github.com/vercel-labs/json-render/tree/main/skills) directory of the repository.
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@@ -1,4 +1,5 @@
export const metadata = { title: "Specs" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/specs")
# Specs
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@@ -1,4 +1,5 @@
export const metadata = { title: "Streaming" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/streaming")
# Streaming
+117 -9
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@@ -1,4 +1,5 @@
export const metadata = { title: "Validation" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/validation")
# Validation
@@ -10,11 +11,18 @@ json-render includes common validation functions:
- `required` — Value must be non-empty
- `email` — Valid email format
- `minLength` — Minimum string length
- `maxLength` — Maximum string length
- `pattern` — Match a regex pattern
- `min` — Minimum numeric value
- `max` — Maximum numeric value
- `minLength` — Minimum string length (args: `{ "min": N }`)
- `maxLength` — Maximum string length (args: `{ "max": N }`)
- `pattern` — Match a regex pattern (args: `{ "pattern": "regex" }`)
- `min` — Minimum numeric value (args: `{ "min": N }`)
- `max` — Maximum numeric value (args: `{ "max": N }`)
- `numeric` — Value must be a number
- `url` — Valid URL format
- `matches` — Must equal another field (args: `{ "other": { "$state": "/path" } }`)
- `equalTo` — Alias for matches (args: `{ "other": { "$state": "/path" } }`)
- `lessThan` — Value must be less than another field (args: `{ "other": { "$state": "/path" } }`)
- `greaterThan` — Value must be greater than another field (args: `{ "other": { "$state": "/path" } }`)
- `requiredIf` — Required only when another field is truthy (args: `{ "field": { "$state": "/path" } }`)
## Using Validation in JSON
@@ -66,7 +74,7 @@ Define custom validators in your catalog's `functions` field. The catalog itself
```typescript
import { defineCatalog } from '@json-render/core';
import { schema } from '@json-render/react'; // or '@json-render/react-native'
import { schema } from '@json-render/react/schema'; // or '@json-render/react-native/schema'
import { z } from 'zod';
const catalog = defineCatalog(schema, {
@@ -142,14 +150,114 @@ function TextField({ props, bindings }) {
See the [@json-render/react API reference](/docs/api/react) for full `ValidationProvider` and `useFieldValidation` documentation.
## Cross-Field Validation
Validation args support `{ "$state": "/path" }` references to compare against other fields. This enables cross-field rules like "confirm password must match password":
```json
{
"type": "Input",
"props": {
"label": "Confirm Password",
"value": { "$bindState": "/form/confirmPassword" },
"checks": [
{ "type": "required", "message": "Please confirm your password" },
{
"type": "matches",
"args": { "other": { "$state": "/form/password" } },
"message": "Passwords must match"
}
]
}
}
```
Other cross-field examples:
```json
{
"checks": [
{
"type": "greaterThan",
"args": { "other": { "$state": "/form/startDate" } },
"message": "End date must be after start date"
}
]
}
```
```json
{
"checks": [
{
"type": "requiredIf",
"args": { "field": { "$state": "/form/enableNotifications" } },
"message": "Email is required when notifications are enabled"
}
]
}
```
## Conditional Validation
Use the `enabled` field in the validation config to only run checks when a condition is met:
```json
{
"type": "Input",
"props": {
"label": "Company Name",
"value": { "$bindState": "/form/company" },
"checks": [
{ "type": "required", "message": "Company name is required" }
]
}
}
```
In the component implementation, you can pass `enabled` to `useFieldValidation`:
```typescript
useFieldValidation(bindings?.value ?? "", {
checks: props.checks ?? [],
enabled: { "$state": "/form/accountType", eq: "business" },
});
```
This only validates the company name when the account type is "business".
## Validation Timing
Control when validation runs with `validateOn`:
- `change` — Validate on every input change
- `blur` — Validate when field loses focus
- `blur` — Validate when field loses focus (default for Input, Textarea)
- `submit` — Validate only on form submission
## Form-Level Validation
Use the built-in `validateForm` action to validate all registered fields at once. This is useful for a "Submit" button that should validate the entire form before proceeding:
```json
{
"type": "Button",
"props": { "label": "Submit" },
"on": {
"press": [
{ "action": "validateForm", "params": { "statePath": "/formResult" } },
{ "action": "submitForm" }
]
},
"children": []
}
```
The `validateForm` action runs `validateAll()` and writes `{ valid: boolean }` to the specified state path (defaults to `/formValidation`). Your submit handler can then check `{ "$state": "/formResult/valid" }` to decide whether to proceed.
> **Note:** Actions in a list execute sequentially, but `submitForm` does not automatically gate on validation. Guard submission with a `$cond` visibility condition on the button or check `{ "$state": "/formResult/valid" }` inside your action handler to skip submission when the form is invalid.
## Next
Learn about [generation modes](/docs/generation-modes).
- [Computed Values](/docs/computed-values) — derive dynamic prop values
- [Watchers](/docs/watchers) — react to state changes
- [Generation Modes](/docs/generation-modes) — how AI generates specs
+2 -1
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@@ -1,4 +1,5 @@
export const metadata = { title: "Visibility" }
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/visibility")
# Visibility
+167
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@@ -0,0 +1,167 @@
import { pageMetadata } from "@/lib/page-metadata"
export const metadata = pageMetadata("docs/watchers")
# Watchers
React to state changes by triggering actions when watched paths update.
## The `watch` Field
Elements can have an optional `watch` field that maps state paths to action bindings. When the value at a watched path changes, the bound actions fire automatically.
`watch` is a **top-level field** on the element (sibling of `type`, `props`, `children`) — not inside `props`.
```json
{
"type": "Select",
"props": {
"label": "Country",
"value": { "$bindState": "/form/country" },
"options": ["US", "Canada", "UK"]
},
"watch": {
"/form/country": {
"action": "loadCities",
"params": { "country": { "$state": "/form/country" } }
}
},
"children": []
}
```
When the user selects a different country, the `loadCities` action fires with the new country value. The action handler can fetch city data and update state, causing a dependent city Select to re-render with new options.
## Cascading Selects
A common pattern is cascading dropdowns where selecting a value in one field loads options for another:
```json
{
"root": "form",
"elements": {
"form": {
"type": "Stack",
"props": { "direction": "vertical", "gap": "md" },
"children": ["country-select", "city-select"]
},
"country-select": {
"type": "Select",
"props": {
"label": "Country",
"value": { "$bindState": "/form/country" },
"options": ["US", "Canada", "UK"]
},
"watch": {
"/form/country": [
{ "action": "loadCities", "params": { "country": { "$state": "/form/country" } } },
{ "action": "setState", "params": { "statePath": "/form/city", "value": "" } }
]
},
"children": []
},
"city-select": {
"type": "Select",
"props": {
"label": "City",
"value": { "$bindState": "/form/city" },
"options": { "$state": "/availableCities" },
"placeholder": "Select a city"
},
"children": []
}
},
"state": {
"form": { "country": "", "city": "" },
"availableCities": []
}
}
```
The watcher on `country-select` fires two actions when the country changes:
1. `loadCities` — fetches and writes city options to `/availableCities`
2. `setState` — resets the city selection
The city Select reads its options from `{ "$state": "/availableCities" }`, so it automatically updates when the data is loaded.
### Action Handler
```typescript
const handlers = {
loadCities: async (params) => {
const cities = await fetchCities(params.country);
// setState is called by the runtime to write the result
return cities;
},
};
```
Or with `defineRegistry`:
```typescript
const { registry, handlers } = defineRegistry(catalog, {
components: { /* ... */ },
actions: {
loadCities: async (params, setState) => {
const response = await fetch(`/api/cities?country=${params.country}`);
const cities = await response.json();
setState('/availableCities', cities);
},
},
});
```
## Multiple Watchers
An element can watch multiple state paths. Each path maps to one or more action bindings:
```json
{
"watch": {
"/form/startDate": { "action": "validateDateRange" },
"/form/endDate": { "action": "validateDateRange" },
"/form/quantity": [
{ "action": "recalculateTotal" },
{ "action": "checkInventory", "params": { "qty": { "$state": "/form/quantity" } } }
]
}
}
```
## Behavior
- Watchers only fire on **value changes**, not on the initial render
- Comparison is by reference (`===`), not deep equality
- Action params support the same expressions as event bindings (`$state`, `$item`, `$index`)
- Multiple action bindings on the same path execute sequentially
## When to Use `watch` vs `on`
<table>
<thead>
<tr>
<th>Mechanism</th>
<th>Trigger</th>
<th>Use Case</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>on</code></td>
<td>User interaction (press, change, blur)</td>
<td>Button clicks, input changes, form submissions</td>
</tr>
<tr>
<td><code>watch</code></td>
<td>State value change (any source)</td>
<td>Cascading data, derived state, cross-field sync</td>
</tr>
</tbody>
</table>
Use `on` when reacting to direct user actions. Use `watch` when a state change (from any source — user input, action handler, or external store update) should trigger side effects.
## Next
- [Data Binding](/docs/data-binding) — connect elements to state
- [Computed Values](/docs/computed-values) — derive prop values
- [Visibility](/docs/visibility) — conditionally show or hide elements
+133
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@@ -0,0 +1,133 @@
"use client";
import { useState } from "react";
import { Badge } from "@/components/ui/badge";
import { examples, allTags, getGitHubUrl, type Example } from "@/lib/examples";
import { cn } from "@/lib/utils";
function ExampleCard({ example }: { example: Example }) {
return (
<div className="group flex flex-col rounded-xl border border-border bg-card text-card-foreground overflow-hidden transition-colors hover:border-foreground/25">
<div className="flex flex-1 flex-col gap-3 p-5">
<h3 className="font-semibold leading-none">{example.title}</h3>
<p className="text-sm text-muted-foreground leading-relaxed">
{example.description}
</p>
<div className="flex flex-wrap gap-1.5">
{example.tags.map((tag) => (
<Badge key={tag} variant="secondary" className="text-[11px]">
{tag}
</Badge>
))}
</div>
<div className="mt-auto flex items-center gap-3 pt-2">
{example.demoUrl && (
<a
href={example.demoUrl}
target="_blank"
rel="noopener noreferrer"
className="inline-flex items-center gap-1.5 text-sm text-foreground hover:text-primary transition-colors"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M15 3h6v6" />
<path d="M10 14 21 3" />
<path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6" />
</svg>
Live Demo
</a>
)}
<a
href={getGitHubUrl(example)}
target="_blank"
rel="noopener noreferrer"
className="inline-flex items-center gap-1.5 text-sm text-muted-foreground hover:text-foreground transition-colors"
>
<svg
viewBox="0 0 16 16"
className="h-3.5 w-3.5"
fill="currentColor"
aria-hidden="true"
>
<path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
</svg>
Source
</a>
</div>
</div>
</div>
);
}
export default function ExamplesPage() {
const [activeTag, setActiveTag] = useState<string | null>(null);
const filtered = activeTag
? examples.filter((e) => e.tags.includes(activeTag))
: examples;
return (
<section className="mx-auto max-w-6xl px-6 py-16">
<div className="mb-10">
<h1 className="text-3xl font-bold tracking-tight sm:text-4xl">
Examples
</h1>
<p className="mt-3 text-lg text-muted-foreground">
Explore json-render across frameworks, renderers, and use cases.
</p>
</div>
<div className="mb-8 flex flex-wrap gap-2">
<button
onClick={() => setActiveTag(null)}
className={cn(
"rounded-full border px-3 py-1 text-xs font-medium transition-colors",
activeTag === null
? "border-foreground bg-foreground text-background"
: "border-border text-muted-foreground hover:text-foreground hover:border-foreground/50",
)}
>
All
</button>
{allTags.map((tag) => (
<button
key={tag}
onClick={() => setActiveTag(activeTag === tag ? null : tag)}
className={cn(
"rounded-full border px-3 py-1 text-xs font-medium transition-colors",
activeTag === tag
? "border-foreground bg-foreground text-background"
: "border-border text-muted-foreground hover:text-foreground hover:border-foreground/50",
)}
>
{tag}
</button>
))}
</div>
<div className="grid gap-6 sm:grid-cols-2 lg:grid-cols-3">
{filtered.map((example) => (
<ExampleCard key={example.slug} example={example} />
))}
</div>
{filtered.length === 0 && (
<p className="py-12 text-center text-muted-foreground">
No examples match the selected filter.
</p>
)}
</section>
);
}
+2 -1
View File
@@ -16,7 +16,8 @@ const SYSTEM_PROMPT = `You are a helpful documentation assistant for json-render
GitHub repository: https://github.com/vercel-labs/json-render
Documentation: https://json-render.dev/docs
npm packages: @json-render/core, @json-render/react, @json-render/remotion, @json-render/codegen
npm packages: @json-render/core, @json-render/react, @json-render/vue, @json-render/svelte, @json-render/solid, @json-render/shadcn, @json-render/react-three-fiber, @json-render/react-native, @json-render/react-email, @json-render/react-pdf, @json-render/image, @json-render/remotion, @json-render/codegen, @json-render/mcp, @json-render/redux, @json-render/zustand, @json-render/jotai, @json-render/xstate, @json-render/yaml
Skills: json-render ships AI agent skills that teach coding agents how to use each package. Install with "npx skills add vercel-labs/json-render --skill <name>". Available skills: core, react, react-pdf, react-email, react-native, shadcn, react-three-fiber, image, remotion, vue, svelte, solid, codegen, mcp, redux, zustand, jotai, xstate, yaml. See /docs/skills for details.
You have access to the full json-render documentation via the bash and readFile tools. The docs are available as markdown files in the /workspace/docs/ directory.
+78 -24
View File
@@ -1,32 +1,73 @@
import { streamText } from "ai";
import { headers } from "next/headers";
import { buildUserPrompt } from "@json-render/core";
import type { Spec, EditMode } from "@json-render/core";
import {
buildUserPrompt,
buildEditUserPrompt,
isNonEmptySpec,
} from "@json-render/core";
import { yamlPrompt } from "@json-render/yaml";
import { stringify as yamlStringify } from "yaml";
import { minuteRateLimit, dailyRateLimit } from "@/lib/rate-limit";
import { playgroundCatalog } from "@/lib/render/catalog";
export const maxDuration = 30;
const SYSTEM_PROMPT = playgroundCatalog.prompt({
customRules: [
"NEVER use viewport height classes (min-h-screen, h-screen) - the UI renders inside a fixed-size container.",
"NEVER use page background colors (bg-gray-50) - the container has its own background.",
"For forms or small UIs: use Card as root with maxWidth:'sm' or 'md' and centered:true.",
"For content-heavy UIs (blogs, dashboards, product listings): use Stack or Grid as root. Use Grid with 2-3 columns for card layouts.",
"Wrap each repeated item in a Card for visual separation and structure.",
"Use realistic, professional sample data. Include 3-5 items with varied content. Never leave state arrays empty.",
'For form inputs (Input, Textarea, Select), always include checks for validation (e.g. required, email, minLength). Always pair checks with a $bindState expression on the value prop (e.g. { "$bindState": "/path" }).',
],
});
const PLAYGROUND_RULES = [
"NEVER use viewport height classes (min-h-screen, h-screen) - the UI renders inside a fixed-size container.",
"NEVER use page background colors (bg-gray-50) - the container has its own background.",
"For forms or small UIs: use Card as root with maxWidth:'sm' or 'md' and centered:true.",
"For content-heavy UIs (blogs, dashboards, product listings): use Stack or Grid as root. Use Grid with 2-3 columns for card layouts.",
"Wrap each repeated item in a Card for visual separation and structure.",
"Use realistic, professional sample data. Include 3-5 items with varied content. Never leave state arrays empty.",
'For form inputs (Input, Textarea, Select), always include checks for validation (e.g. required, email, minLength). Always pair checks with a $bindState expression on the value prop (e.g. { "$bindState": "/path" }).',
];
const MAX_PROMPT_LENGTH = 500;
const DEFAULT_MODEL = "anthropic/claude-haiku-4.5";
function getSystemPrompt(isYaml: boolean, editModes?: EditMode[]): string {
if (isYaml) {
return yamlPrompt(playgroundCatalog, {
mode: "standalone",
customRules: PLAYGROUND_RULES,
editModes: editModes ?? ["merge"],
});
}
return playgroundCatalog.prompt({
customRules: PLAYGROUND_RULES,
editModes,
});
}
function buildYamlUserPrompt(
prompt: string,
previousSpec?: Spec | null,
editModes?: EditMode[],
): string {
if (isNonEmptySpec(previousSpec)) {
return buildEditUserPrompt({
prompt,
currentSpec: previousSpec,
config: { modes: editModes ?? ["merge"] },
format: "yaml",
maxPromptLength: MAX_PROMPT_LENGTH,
serializer: (s) => yamlStringify(s, { indent: 2 }).trimEnd(),
});
}
const userText = prompt.slice(0, MAX_PROMPT_LENGTH);
return [
userText,
"",
"Output the full spec in a ```yaml-spec fence. Stream progressively — output elements one at a time.",
].join("\n");
}
export async function POST(req: Request) {
// Get client IP for rate limiting
const headersList = await headers();
const ip = headersList.get("x-forwarded-for")?.split(",")[0] ?? "anonymous";
// Check rate limits (minute and daily)
const [minuteResult, dailyResult] = await Promise.all([
minuteRateLimit.limit(ip),
dailyRateLimit.limit(ip),
@@ -48,22 +89,34 @@ export async function POST(req: Request) {
);
}
const { prompt, context } = await req.json();
const { prompt, context, format, editModes } = await req.json();
const isYaml = format === "yaml";
const userPrompt = buildUserPrompt({
prompt,
currentSpec: context?.previousSpec,
maxPromptLength: MAX_PROMPT_LENGTH,
});
const systemPrompt = getSystemPrompt(isYaml, editModes);
const userPrompt = isYaml
? buildYamlUserPrompt(prompt, context?.previousSpec, editModes)
: buildUserPrompt({
prompt,
currentSpec: context?.previousSpec,
maxPromptLength: MAX_PROMPT_LENGTH,
editModes,
});
const result = streamText({
model: process.env.AI_GATEWAY_MODEL || DEFAULT_MODEL,
system: SYSTEM_PROMPT,
system: [
{
role: "system",
content: systemPrompt,
providerOptions: {
anthropic: { cacheControl: { type: "ephemeral" } },
},
},
],
prompt: userPrompt,
temperature: 0.7,
});
// Stream the text, then append token usage metadata at the end
const encoder = new TextEncoder();
const textStream = result.textStream;
@@ -72,7 +125,6 @@ export async function POST(req: Request) {
for await (const chunk of textStream) {
controller.enqueue(encoder.encode(chunk));
}
// Append usage metadata after stream completes
try {
const usage = await result.usage;
const meta = JSON.stringify({
@@ -80,10 +132,12 @@ export async function POST(req: Request) {
promptTokens: usage.inputTokens,
completionTokens: usage.outputTokens,
totalTokens: usage.totalTokens,
cachedTokens: usage.inputTokenDetails?.cacheReadTokens ?? 0,
cacheWriteTokens: usage.inputTokenDetails?.cacheWriteTokens ?? 0,
});
controller.enqueue(encoder.encode(`\n${meta}\n`));
} catch {
// Usage not available — skip silently
// Usage not available
}
controller.close();
},
+74
View File
@@ -0,0 +1,74 @@
import { NextRequest, NextResponse } from "next/server";
import { getSearchIndex } from "@/lib/search-index";
export async function GET(req: NextRequest) {
const q = req.nextUrl.searchParams.get("q")?.trim().toLowerCase();
if (!q) {
return NextResponse.json({ results: [] });
}
const index = await getSearchIndex();
const terms = q.split(/\s+/).filter(Boolean);
const results = index
.map((entry) => {
const titleLower = entry.title.toLowerCase();
const contentLower = entry.content.toLowerCase();
const titleMatch = terms.every((t) => titleLower.includes(t));
const contentMatch = terms.every((t) => contentLower.includes(t));
if (!titleMatch && !contentMatch) return null;
let snippet = "";
if (contentMatch) {
const firstTermIdx = Math.min(
...terms.map((t) => {
const idx = contentLower.indexOf(t);
return idx === -1 ? Infinity : idx;
}),
);
if (firstTermIdx !== Infinity) {
const start = Math.max(0, firstTermIdx - 40);
const end = Math.min(entry.content.length, firstTermIdx + 120);
snippet =
(start > 0 ? "..." : "") +
entry.content.slice(start, end).replace(/\n/g, " ") +
(end < entry.content.length ? "..." : "");
}
}
return {
title: entry.title,
href: entry.href,
section: entry.section,
snippet,
score: titleMatch ? 2 : 1,
};
})
.filter(
(
r,
): r is {
title: string;
href: string;
section: string;
snippet: string;
score: number;
} => r !== null,
)
.sort((a, b) => b.score - a.score)
.slice(0, 20)
.map(({ title, href, section, snippet }) => ({
title,
href,
section,
snippet,
}));
return NextResponse.json(
{ results },
{ headers: { "Cache-Control": "public, max-age=60" } },
);
}
+15 -4
View File
@@ -154,23 +154,34 @@ button {
margin-bottom: 0.5em;
}
/* MDX table styles — fallback for GFM-generated tables */
/* MDX table styles — applies to both GFM pipe tables and raw HTML tables */
.mdx-table th,
.mdx-table td {
.mdx-table td,
article table th,
article table td {
border: 1px solid var(--border);
padding: 0.75rem 1rem;
text-align: left;
}
.mdx-table th {
.mdx-table th,
article table th {
font-weight: 600;
background-color: var(--muted);
}
.mdx-table td {
.mdx-table td,
article table td {
color: var(--muted-foreground);
}
article table {
width: 100%;
font-size: 0.875rem;
border-collapse: collapse;
margin: 1.5rem 0;
}
/* Shiki dual theme support */
.shiki,
.shiki span {
+4 -2
View File
@@ -1,5 +1,6 @@
import type { Metadata } from "next";
import localFont from "next/font/local";
import { GeistPixelSquare } from "geist/font/pixel";
import "./globals.css";
import { ThemeProvider } from "@/components/theme-provider";
import { DocsChat } from "@/components/docs-chat";
@@ -61,7 +62,6 @@ export const metadata: Metadata = {
description:
"The Generative UI framework. Generate dashboards, widgets, and apps from prompts — safely constrained to components you define.",
images: ["/og"],
creator: "@verabornnot",
},
robots: {
index: true,
@@ -92,7 +92,9 @@ export default async function RootLayout({
/>
)}
</head>
<body className={`${geistSans.variable} ${geistMono.variable}`}>
<body
className={`${geistSans.variable} ${geistMono.variable} ${GeistPixelSquare.variable}`}
>
<ThemeProvider>
{children}
<DocsChat defaultOpen={chatOpen} defaultWidth={chatWidth} />
+15 -8
View File
@@ -5,19 +5,20 @@ import { join } from "node:path";
export { getPageTitle } from "@/lib/page-titles";
// Cache font data in memory after first load
let fontCache: { geistRegular: Buffer } | null = null;
let fontCache: { geistRegular: Buffer; geistPixelSquare: Buffer } | null = null;
async function loadFonts() {
if (fontCache) return fontCache;
const geistRegular = await readFile(
join(process.cwd(), "public/Geist-Regular.ttf"),
);
fontCache = { geistRegular };
const [geistRegular, geistPixelSquare] = await Promise.all([
readFile(join(process.cwd(), "public/Geist-Regular.ttf")),
readFile(join(process.cwd(), "public/GeistPixel-Square.ttf")),
]);
fontCache = { geistRegular, geistPixelSquare };
return fontCache;
}
export async function renderOgImage(title: string) {
const { geistRegular } = await loadFonts();
const { geistRegular, geistPixelSquare } = await loadFonts();
return new ImageResponse(
<div
@@ -53,8 +54,8 @@ export async function renderOgImage(title: string) {
<span
style={{
fontSize: 36,
fontFamily: "Geist",
fontWeight: 400,
fontFamily: "Geist Pixel Square",
fontWeight: 500,
color: "white",
}}
>
@@ -99,6 +100,12 @@ export async function renderOgImage(title: string) {
style: "normal",
weight: 400,
},
{
name: "Geist Pixel Square",
data: geistPixelSquare.buffer as ArrayBuffer,
style: "normal",
weight: 500,
},
],
},
);
+2 -5
View File
@@ -1,10 +1,7 @@
import { Playground } from "@/components/playground";
import { pageMetadata } from "@/lib/page-metadata";
import { PAGE_TITLES } from "@/lib/page-titles";
export const metadata = {
title: PAGE_TITLES["playground"],
};
export const metadata = pageMetadata("playground");
export default function PlaygroundPage() {
return <Playground />;
+2 -2
View File
@@ -145,7 +145,7 @@ function getHighlighter() {
if (!highlighterPromise) {
highlighterPromise = createHighlighter({
themes: [vercelLightTheme, vercelDarkTheme],
langs: ["json", "tsx", "typescript"],
langs: ["json", "tsx", "typescript", "yaml"],
});
}
return highlighterPromise;
@@ -158,7 +158,7 @@ if (typeof window !== "undefined") {
interface CodeBlockProps {
code: string;
lang: "json" | "tsx" | "typescript";
lang: "json" | "tsx" | "typescript" | "yaml";
fillHeight?: boolean;
hideCopyButton?: boolean;
}
+4 -4
View File
@@ -261,10 +261,10 @@ export function DocsChat({
}
}, [messages, isLoading]);
// Cmd+K to open sidebar and focus prompt, Escape to close
// Cmd+I to open sidebar and focus prompt, Escape to close
useEffect(() => {
const handleKeyDown = (e: KeyboardEvent) => {
if (e.key === "k" && (e.metaKey || e.ctrlKey)) {
if (e.key === "i" && (e.metaKey || e.ctrlKey)) {
e.preventDefault();
setOpen((prev) => {
if (!prev) {
@@ -497,12 +497,12 @@ export function DocsChat({
{!open && (
<button
onClick={() => setOpen(true)}
className="fixed z-50 bottom-4 left-1/2 -translate-x-1/2 sm:left-auto sm:translate-x-0 sm:right-4 flex items-center gap-2 px-4 py-2 rounded-lg border bg-background text-primary shadow-lg hover:bg-primary hover:text-primary-foreground transition-colors text-sm font-medium"
className="fixed z-50 bottom-4 left-1/2 -translate-x-1/2 sm:left-auto sm:translate-x-0 sm:right-4 flex items-center gap-2 px-4 py-2 rounded-lg border border-primary bg-primary text-primary-foreground shadow-lg hover:bg-primary/90 transition-colors text-sm font-medium"
aria-label="Ask AI"
>
Ask AI
<kbd className="hidden sm:inline-flex items-center gap-0.5 text-xs opacity-60 font-mono">
<span>&#8984;</span>K
<span>&#8984;</span>I
</kbd>
</button>
)}
+233 -76
View File
@@ -1,100 +1,257 @@
"use client";
function Skeleton({ className = "" }: { className?: string }) {
return <div className={`rounded bg-muted-foreground/10 ${className}`} />;
}
/** Simple form wireframe reused in both diagrams */
function FormUI() {
function ScheduleItem({
time,
label,
color,
}: {
time: string;
label: string;
color: string;
}) {
return (
<div className="border border-border rounded-lg p-2.5 space-y-1.5 bg-muted/30">
{/* Title */}
<Skeleton className="h-2.5 w-14 mb-1" />
{/* Input fields */}
<Skeleton className="h-4 w-full rounded-sm" />
<Skeleton className="h-4 w-full rounded-sm" />
{/* Submit button */}
<Skeleton className="h-4 w-16 rounded-sm bg-muted-foreground/20 mt-1" />
<div className="flex items-center gap-2 py-1.5 border-t border-border/50 first:border-t-0">
<span className="text-[10px] text-muted-foreground/60 w-12 shrink-0 tabular-nums">
{time}
</span>
<span
className="w-1.5 h-1.5 rounded-full shrink-0"
style={{ background: color }}
/>
<span className="text-[11px] text-muted-foreground">{label}</span>
</div>
);
}
function ChatModeDiagram() {
function InlineModeDiagram() {
return (
<div className="flex flex-col h-full">
<div className="text-xs font-medium text-muted-foreground mb-3 text-center">
Chat Mode
<div className="text-sm font-medium text-foreground text-center mb-3">
Inline Mode
</div>
<div className="flex-1 border border-border rounded-lg bg-background overflow-hidden flex flex-col">
{/* Chat area */}
<div className="flex-1 p-3 overflow-hidden flex justify-center">
<div className="w-1/3 min-w-[120px] space-y-3">
<div className="flex-1 border border-border rounded-2xl bg-background overflow-hidden flex flex-col">
<div className="flex-1 p-4 space-y-3 overflow-hidden">
{/* User message */}
<div className="flex justify-end">
<div className="bg-muted-foreground/20 rounded-2xl rounded-br px-3.5 py-2 max-w-[85%]">
<span className="text-[11px] text-foreground/80">
I have back-to-back meetings today
</span>
</div>
</div>
{/* AI response */}
<div className="space-y-2">
<p className="text-[11px] text-muted-foreground/70">
Packed day! Here&apos;s what you&apos;ve got:
</p>
<div className="bg-muted/40 border border-border rounded-xl p-3 w-[92%]">
<div className="text-[11px] font-semibold text-foreground/80 mb-2">
Today&apos;s Schedule
</div>
<ScheduleItem
time="10:00 AM"
label="Design Review"
color="#7aa2f7"
/>
<ScheduleItem
time="1:00 PM"
label="Sprint Planning"
color="#bb9af7"
/>
<ScheduleItem
time="3:30 PM"
label="Team Standup"
color="#9ece6a"
/>
<ScheduleItem
time="4:30 PM"
label="Eng All-Hands"
color="#e0af68"
/>
</div>
</div>
</div>
{/* Prompt input */}
<div className="p-2.5">
<div className="bg-muted/50 border border-border rounded-xl px-2.5 py-1.5 flex items-center gap-1.5">
<span className="text-[10px] text-muted-foreground/40 flex-1">
Message...
</span>
<div className="w-5 h-5 rounded-md bg-muted-foreground/20 flex items-center justify-center">
<svg
className="w-2.5 h-2.5 text-muted-foreground/50"
viewBox="0 0 24 24"
fill="currentColor"
>
<path
d="M12 4l-1.41 1.41L16.17 11H4v2h12.17l-5.58 5.59L12 20l8-8z"
transform="rotate(-90 12 12)"
/>
</svg>
</div>
</div>
</div>
</div>
<div className="mt-3 flex flex-col items-center gap-2">
<div className="text-xs font-medium text-muted-foreground">
AI decides when UI beats text
</div>
<div className="flex items-center gap-1.5 text-[10px] text-muted-foreground/50">
<span>AI chatbots</span>
<span className="text-muted-foreground/30">/</span>
<span>Copilots</span>
<span className="text-muted-foreground/30">/</span>
<span>Assistants</span>
</div>
</div>
</div>
);
}
function LandingPage() {
return (
<div className="w-full h-full flex flex-col bg-muted/20">
{/* Nav */}
<div className="flex items-center justify-between px-3 py-2 border-b border-border/50">
<svg
width="12"
height="12"
viewBox="0 0 24 24"
fill="none"
className="shrink-0"
>
<rect
x="2"
y="14"
width="5"
height="8"
rx="1"
className="fill-muted-foreground/60"
/>
<rect
x="9.5"
y="8"
width="5"
height="14"
rx="1"
className="fill-muted-foreground/60"
/>
<rect
x="17"
y="2"
width="5"
height="20"
rx="1"
className="fill-muted-foreground/60"
/>
</svg>
<div className="flex items-center gap-2">
<span className="text-[9px] text-muted-foreground/50">Pricing</span>
<span className="text-[9px] text-muted-foreground/50">Blog</span>
<span className="text-[8px] font-semibold bg-foreground text-background rounded-md px-1.5 py-0.5 whitespace-nowrap">
Get Started
</span>
</div>
</div>
{/* Hero */}
<div className="flex-1 flex flex-col items-center justify-center gap-2.5 text-center px-4">
<span className="text-[8px] font-medium text-green-400 bg-green-400/10 border border-green-400/15 rounded-full px-2 py-0.5">
Trusted by 2,000+ teams
</span>
<div className="text-sm font-bold text-foreground leading-tight">
Analytics that
<br />
move the needle
</div>
<div className="text-[10px] text-muted-foreground/50 leading-relaxed">
Ship what matters. No setup required.
</div>
<div className="flex gap-1.5 mt-1">
<button className="bg-foreground text-background text-[9px] font-semibold rounded-lg px-3 py-1.5 whitespace-nowrap">
Start Free
</button>
<button className="border border-border text-muted-foreground text-[9px] font-medium rounded-lg px-3 py-1.5 whitespace-nowrap">
Book Demo
</button>
</div>
</div>
{/* Footer */}
<div className="flex justify-center gap-3 py-2 border-t border-border/50">
<span className="text-[8px] text-muted-foreground/30">Privacy</span>
<span className="text-[8px] text-muted-foreground/30">Terms</span>
<span className="text-[8px] text-muted-foreground/30">Status</span>
</div>
</div>
);
}
function StandaloneModeDiagram() {
return (
<div className="flex flex-col h-full">
<div className="text-sm font-medium text-foreground text-center mb-3">
Standalone Mode
</div>
<div className="flex-1 border border-border rounded-2xl bg-background overflow-hidden flex flex-row">
{/* Left panel - conversation */}
<div className="w-[38%] border-r border-border/50 flex flex-col">
<div className="flex-1 p-3 space-y-2.5">
{/* User message */}
<div className="flex justify-end">
<div className="bg-muted rounded-xl px-3 py-2">
<Skeleton className="h-2 w-14" />
<div className="bg-muted-foreground/20 rounded-2xl rounded-br px-2.5 py-1.5">
<span className="text-[10px] text-foreground/80 block leading-relaxed">
A landing page for my analytics startup
</span>
</div>
</div>
{/* AI text */}
<p className="text-[10px] text-muted-foreground/60 leading-relaxed">
Here&apos;s a clean landing page with a hero, nav, and CTAs.
</p>
</div>
{/* Assistant text */}
<div className="space-y-2">
<div className="space-y-1.5">
<Skeleton className="h-2 w-full" />
<Skeleton className="h-2 w-3/4" />
</div>
{/* Inline UI */}
<FormUI />
{/* More text after UI */}
<div className="space-y-1.5">
<Skeleton className="h-2 w-4/5" />
{/* Prompt input */}
<div className="p-2.5">
<div className="bg-muted/50 border border-border rounded-xl px-2.5 py-1.5 flex items-center gap-1.5">
<span className="text-[10px] text-muted-foreground/40 flex-1">
Message...
</span>
<div className="w-5 h-5 rounded-md bg-muted-foreground/20 flex items-center justify-center">
<svg
className="w-2.5 h-2.5 text-muted-foreground/50"
viewBox="0 0 24 24"
fill="currentColor"
>
<path
d="M12 4l-1.41 1.41L16.17 11H4v2h12.17l-5.58 5.59L12 20l8-8z"
transform="rotate(-90 12 12)"
/>
</svg>
</div>
</div>
</div>
</div>
{/* Input bar */}
<div className="p-2 flex justify-center">
<div className="w-1/3 min-w-[120px] flex items-center gap-2">
<Skeleton className="h-7 flex-1 rounded-md" />
<Skeleton className="h-7 w-7 rounded-md" />
</div>
{/* Right panel - landing page */}
<div className="flex-1">
<LandingPage />
</div>
</div>
<div className="text-[10px] text-muted-foreground/60 mt-2 text-center">
Text + UI interleaved in messages
</div>
</div>
);
}
function GenerateModeDiagram() {
return (
<div className="flex flex-col h-full">
<div className="text-xs font-medium text-muted-foreground mb-3 text-center">
Generate Mode
</div>
<div className="flex-1 border border-border rounded-lg bg-background overflow-hidden flex flex-row">
{/* Left panel - prompt */}
<div className="w-[38%] border-r border-border flex flex-col">
<div className="flex-1" />
<div className="p-3 space-y-2">
<Skeleton className="h-7 w-full rounded-md" />
<Skeleton className="h-5 w-16 rounded-md" />
</div>
<div className="mt-3 flex flex-col items-center gap-2">
<div className="text-xs font-medium text-muted-foreground">
Prompt in, UI out
</div>
{/* Right panel - UI preview */}
<div className="flex-1 p-3 flex items-center justify-center">
<div className="w-3/4">
<FormUI />
</div>
<div className="flex items-center gap-1.5 text-[10px] text-muted-foreground/50">
<span>Website builders</span>
<span className="text-muted-foreground/30">/</span>
<span>Text-to-widget</span>
<span className="text-muted-foreground/30">/</span>
<span>Dashboards</span>
</div>
</div>
<div className="text-[10px] text-muted-foreground/60 mt-2 text-center">
Prompt separate from UI preview
</div>
</div>
);
}
@@ -103,11 +260,11 @@ export function GenerationModesDiagram() {
return (
<div className="not-prose my-8">
<div className="grid grid-cols-1 sm:grid-cols-2 gap-6">
<div className="h-[280px]">
<ChatModeDiagram />
<div className="h-[420px]">
<InlineModeDiagram />
</div>
<div className="h-[280px]">
<GenerateModeDiagram />
<div className="h-[420px]">
<StandaloneModeDiagram />
</div>
</div>
</div>
+115 -40
View File
@@ -1,17 +1,59 @@
"use client";
import { useState } from "react";
import Link from "next/link";
import { usePathname } from "next/navigation";
import { ThemeToggle } from "./theme-toggle";
import { Search } from "./search";
import {
Sheet,
SheetTrigger,
SheetContent,
SheetTitle,
} from "@/components/ui/sheet";
import { cn } from "@/lib/utils";
const navLinks = [
{ href: "/playground", label: "Playground" },
{ href: "/examples", label: "Examples" },
{ href: "/docs", label: "Docs" },
];
function GitHubLink({ className }: { className?: string }) {
return (
<a
href="https://github.com/vercel-labs/json-render"
target="_blank"
rel="noopener noreferrer"
className={cn(
"flex items-center gap-1.5 text-sm text-muted-foreground hover:text-foreground transition-colors",
className,
)}
>
<svg
viewBox="0 0 16 16"
className="h-4 w-4"
fill="currentColor"
aria-hidden="true"
>
<path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
</svg>
<span>12k</span>
</a>
);
}
export function Header() {
const pathname = usePathname();
const [mobileOpen, setMobileOpen] = useState(false);
const isActive = (href: string) => {
if (href === "/playground") {
return pathname === "/playground";
}
if (href === "/examples") {
return pathname.startsWith("/examples");
}
if (href === "/docs") {
return pathname.startsWith("/docs");
}
@@ -57,53 +99,86 @@ export function Header() {
</svg>
</span>
<Link href="/">
<span className="font-medium tracking-tight text-lg">
<span className="font-medium tracking-tight text-lg font-(family-name:--font-geist-pixel-square)">
json-render
</span>
</Link>
</div>
<nav className="flex items-center gap-4">
<Link
href="/playground"
className={cn(
"text-sm transition-colors",
isActive("/playground")
? "text-primary font-medium"
: "text-muted-foreground hover:text-foreground",
)}
>
<span className="sm:hidden">Play</span>
<span className="hidden sm:inline">Playground</span>
</Link>
<Link
href="/docs"
className={cn(
"text-sm transition-colors",
isActive("/docs")
? "text-primary font-medium"
: "text-muted-foreground hover:text-foreground",
)}
>
Docs
</Link>
<a
href="https://github.com/vercel-labs/json-render"
target="_blank"
rel="noopener noreferrer"
className="flex items-center gap-1.5 text-sm text-muted-foreground hover:text-foreground transition-colors"
>
<svg
viewBox="0 0 16 16"
className="h-4 w-4"
fill="currentColor"
aria-hidden="true"
{/* Desktop nav */}
<nav className="hidden sm:flex items-center gap-4">
{navLinks.map((link) => (
<Link
key={link.href}
href={link.href}
className={cn(
"text-sm transition-colors",
isActive(link.href)
? "text-primary"
: "text-muted-foreground hover:text-foreground",
)}
>
<path d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0016 8c0-4.42-3.58-8-8-8z" />
</svg>
<span>11k</span>
</a>
{link.label}
</Link>
))}
<Search />
<GitHubLink />
<ThemeToggle />
</nav>
{/* Mobile nav */}
<div className="flex sm:hidden items-center gap-3">
<Search />
<GitHubLink />
<Sheet open={mobileOpen} onOpenChange={setMobileOpen}>
<SheetTrigger
className="flex items-center justify-center"
aria-label="Open menu"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="20"
height="20"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
className="text-muted-foreground"
>
<line x1="4" x2="20" y1="12" y2="12" />
<line x1="4" x2="20" y1="6" y2="6" />
<line x1="4" x2="20" y1="18" y2="18" />
</svg>
</SheetTrigger>
<SheetContent side="right" className="overflow-y-auto p-6">
<SheetTitle className="mb-6">Menu</SheetTitle>
<nav className="flex flex-col gap-1">
{navLinks.map((link) => (
<Link
key={link.href}
href={link.href}
onClick={() => setMobileOpen(false)}
className={cn(
"block py-2.5 text-sm transition-colors",
isActive(link.href)
? "text-primary"
: "text-muted-foreground hover:text-foreground",
)}
>
{link.label}
</Link>
))}
<div className="my-3 border-t border-border" />
<div className="flex items-center justify-between py-2.5">
<span className="text-sm text-muted-foreground">Theme</span>
<ThemeToggle />
</div>
</nav>
</SheetContent>
</Sheet>
</div>
</div>
</header>
);
+290 -81
View File
@@ -2,10 +2,16 @@
import { useEffect, useState, useCallback, useRef, useMemo } from "react";
import { flushSync } from "react-dom";
import { useUIStream, type TokenUsage } from "@json-render/react";
import type { Spec } from "@json-render/core";
import { collectUsedComponents, serializeProps } from "@json-render/codegen";
import { toast } from "sonner";
import { stringify as yamlStringify } from "yaml";
import type { EditMode } from "@json-render/core";
import {
usePlaygroundStream,
type StreamFormat,
type TokenUsage,
} from "@/lib/use-playground-stream";
import {
ResizablePanelGroup,
ResizablePanel,
@@ -16,17 +22,20 @@ import { CopyButton } from "./copy-button";
import { Toaster } from "./ui/sonner";
import { Header } from "./header";
import { Sheet, SheetContent, SheetTitle } from "./ui/sheet";
import { JsonEditor } from "@visual-json/react";
import type { JsonValue } from "@visual-json/react";
import { PlaygroundRenderer } from "@/lib/render/renderer";
import { playgroundCatalog } from "@/lib/render/catalog";
import { buildCatalogDisplayData } from "@/lib/render/catalog-display";
type Tab = "json" | "nested" | "stream" | "catalog";
type Tab = "spec" | "nested" | "stream" | "catalog" | "visual";
type RenderView = "preview" | "code";
type MobileView =
| "json"
| "spec"
| "nested"
| "stream"
| "catalog"
| "visual"
| "preview"
| "generated-code";
@@ -37,6 +46,79 @@ interface Version {
status: "generating" | "complete" | "error";
usage: TokenUsage | null;
rawLines: string[];
format: StreamFormat;
}
function formatTokens(n: number): string {
if (n >= 1000) return `${(n / 1000).toFixed(1).replace(/\.0$/, "")}k`;
return String(n);
}
function PlaygroundControls({
format,
setFormat,
editModes,
setEditModes,
showClear,
onClear,
}: {
format: StreamFormat;
setFormat: (f: StreamFormat) => void;
editModes: EditMode[];
setEditModes: React.Dispatch<React.SetStateAction<EditMode[]>>;
showClear: boolean;
onClear: () => void;
}) {
return (
<div className="flex items-center gap-2">
<div className="flex items-center rounded border border-border text-[10px] font-mono overflow-hidden">
{(["jsonl", "yaml"] as const).map((f) => (
<button
key={f}
onClick={() => setFormat(f)}
className={`px-1.5 py-0.5 transition-colors ${
format === f
? "bg-muted text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{f}
</button>
))}
</div>
<div className="flex items-center rounded border border-border text-[10px] font-mono overflow-hidden">
{(["patch", "merge", "diff"] as const).map((m) => (
<button
key={m}
onClick={() => {
setEditModes((prev) =>
prev.includes(m)
? prev.length > 1
? prev.filter((x) => x !== m)
: prev
: [...prev, m],
);
}}
className={`px-1.5 py-0.5 transition-colors ${
editModes.includes(m)
? "bg-muted text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{m}
</button>
))}
</div>
{showClear && (
<button
onClick={onClear}
className="text-xs text-muted-foreground hover:text-foreground transition-colors"
>
Clear
</button>
)}
</div>
);
}
/**
@@ -97,13 +179,15 @@ export function Playground() {
null,
);
const [inputValue, setInputValue] = useState("");
const [activeTab, setActiveTab] = useState<Tab>("json");
const [activeTab, setActiveTab] = useState<Tab>("spec");
const [catalogSection, setCatalogSection] = useState<
"components" | "actions"
>("components");
const [renderView, setRenderView] = useState<RenderView>("preview");
const [mobileView, setMobileView] = useState<MobileView>("preview");
const [versionsSheetOpen, setVersionsSheetOpen] = useState(false);
const [format, setFormat] = useState<StreamFormat>("jsonl");
const [editModes, setEditModes] = useState<EditMode[]>(["patch"]);
const inputRef = useRef<HTMLTextAreaElement>(null);
const mobileInputRef = useRef<HTMLTextAreaElement>(null);
const versionsEndRef = useRef<HTMLDivElement>(null);
@@ -121,12 +205,13 @@ export function Playground() {
rawLines: streamRawLines,
send,
clear,
} = useUIStream({
} = usePlaygroundStream({
api: "/api/generate",
format,
editModes,
onError: (err: Error) => {
console.error("Generation error:", err);
toast.error(err.message || "Generation failed. Please try again.");
// Mark the version as errored
if (generatingVersionIdRef.current) {
const erroredVersionId = generatingVersionIdRef.current;
setVersions((prev) =>
@@ -137,7 +222,7 @@ export function Playground() {
generatingVersionIdRef.current = null;
}
},
} as Parameters<typeof useUIStream>[0]);
});
// Get the selected version
const selectedVersion = versions.find((v) => v.id === selectedVersionId);
@@ -212,6 +297,7 @@ export function Playground() {
status: "generating",
usage: null,
rawLines: [],
format,
};
generatingVersionIdRef.current = newVersionId;
@@ -221,7 +307,7 @@ export function Playground() {
// Pass the current tree as context so the API can iterate on it
await send(inputValue.trim(), { previousSpec: currentTreeRef.current });
}, [inputValue, isStreaming, send]);
}, [inputValue, isStreaming, send, format]);
const handleKeyDown = useCallback(
(e: React.KeyboardEvent) => {
@@ -233,9 +319,30 @@ export function Playground() {
[handleSubmit],
);
const jsonCode = currentTree
? JSON.stringify(currentTree, null, 2)
: "// waiting...";
const handleVisualChange = useCallback(
(value: JsonValue) => {
if (!selectedVersionId || isStreaming) return;
setVersions((prev) =>
prev.map((v) =>
v.id === selectedVersionId
? { ...v, tree: value as unknown as Spec }
: v,
),
);
},
[selectedVersionId, isStreaming],
);
const specCode = useMemo(() => {
if (!currentTree)
return format === "yaml" ? "# waiting..." : "// waiting...";
if (format === "yaml") {
return yamlStringify(currentTree, { indent: 2 }).trimEnd();
}
return JSON.stringify(currentTree, null, 2);
}, [currentTree, format]);
const specLang = format === "yaml" ? "yaml" : "json";
const nestedCode = useMemo(() => {
if (!currentTree || !currentTree.root) return "// waiting...";
@@ -258,7 +365,7 @@ export function Playground() {
const componentName = element.type;
const propsObj: Record<string, unknown> = {};
for (const [k, v] of Object.entries(element.props)) {
for (const [k, v] of Object.entries(element.props ?? {})) {
if (v !== null && v !== undefined) {
propsObj[k] = v;
}
@@ -304,6 +411,15 @@ ${jsx}
}`;
}, [currentTree]);
// Determine syntax lang for raw stream based on selected version's format
const streamLang = isSelectedVersionGenerating
? format === "yaml"
? "yaml"
: "json"
: selectedVersion?.format === "yaml"
? "yaml"
: "json";
// Chat pane content
const chatPane = (
<div className="h-full flex flex-col border-t border-border">
@@ -375,9 +491,15 @@ ${jsx}
)}
</div>
{version.usage && (
<div className="flex items-center gap-2 mt-1 ml-6">
<div className="mt-1 ml-6">
<span className="text-[10px] font-mono text-muted-foreground/60">
{version.usage.totalTokens.toLocaleString()} tokens
{formatTokens(
version.usage.promptTokens - version.usage.cachedTokens,
)}{" "}
in · {formatTokens(version.usage.completionTokens)} out
{version.usage.cachedTokens > 0
? ` · ${formatTokens(version.usage.cachedTokens)} cached`
: ""}
</span>
</div>
)}
@@ -408,20 +530,18 @@ ${jsx}
autoFocus
/>
<div className="flex justify-between items-center mt-2">
{versions.length > 0 ? (
<button
onClick={() => {
setVersions([]);
setSelectedVersionId(null);
clear();
}}
className="text-xs text-muted-foreground hover:text-foreground transition-colors"
>
Clear
</button>
) : (
<div />
)}
<PlaygroundControls
format={format}
setFormat={setFormat}
editModes={editModes}
setEditModes={setEditModes}
showClear={versions.length > 0}
onClear={() => {
setVersions([]);
setSelectedVersionId(null);
clear();
}}
/>
{isStreaming ? (
<button
onClick={() => clear()}
@@ -475,35 +595,73 @@ ${jsx}
const copyText =
activeTab === "stream"
? currentRawLines.join("\n")
: activeTab === "json"
? jsonCode
: activeTab === "spec"
? specCode
: activeTab === "nested"
? nestedCode
: "";
: activeTab === "visual"
? specCode
: "";
const codePane = (
<div className="h-full flex flex-col border-t border-border">
<div className="border-b border-border px-3 h-9 flex items-center gap-3">
{(["json", "nested", "stream", "catalog"] as const).map((tab) => (
<button
key={tab}
onClick={() => setActiveTab(tab)}
className={`text-xs font-mono transition-colors ${
activeTab === tab
? "text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{tab}
</button>
))}
{(["spec", "visual", "nested", "stream", "catalog"] as const).map(
(tab) => (
<button
key={tab}
onClick={() => setActiveTab(tab)}
className={`text-xs font-mono transition-colors ${
activeTab === tab
? "text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{tab === "spec" ? (format === "yaml" ? "yaml" : "json") : tab}
</button>
),
)}
<div className="flex-1" />
{activeTab !== "catalog" && (
{activeTab !== "catalog" && activeTab !== "visual" && (
<CopyButton text={copyText} className="text-muted-foreground" />
)}
</div>
<div className="flex-1 overflow-auto">
{activeTab === "catalog" ? (
{activeTab === "visual" ? (
currentTree ? (
<JsonEditor
value={currentTree as unknown as JsonValue}
onChange={handleVisualChange}
readOnly={isStreaming}
sidebarOpen={false}
height="100%"
className="h-full"
style={
{
"--vj-bg": "var(--background)",
"--vj-bg-panel": "var(--background)",
"--vj-bg-hover": "var(--muted)",
"--vj-bg-selected": "var(--primary)",
"--vj-bg-selected-muted": "var(--muted)",
"--vj-text": "var(--foreground)",
"--vj-text-selected": "var(--primary-foreground)",
"--vj-text-muted": "var(--muted-foreground)",
"--vj-text-dim": "var(--muted-foreground)",
"--vj-border": "var(--border)",
"--vj-border-subtle": "var(--border)",
"--vj-accent": "var(--primary)",
"--vj-accent-muted": "var(--muted)",
"--vj-input-bg": "var(--secondary)",
"--vj-input-border": "var(--border)",
} as React.CSSProperties
}
/>
) : (
<div className="text-muted-foreground/50 p-3 text-sm font-mono">
{"// generate a spec to edit visually"}
</div>
)
) : activeTab === "catalog" ? (
<div className="h-full flex flex-col text-sm">
<div className="flex items-center gap-3 px-3 h-9 border-b border-border">
{(
@@ -624,7 +782,7 @@ ${jsx}
currentRawLines.length > 0 ? (
<CodeBlock
code={currentRawLines.join("\n")}
lang="json"
lang={streamLang}
fillHeight
hideCopyButton
/>
@@ -636,7 +794,12 @@ ${jsx}
) : activeTab === "nested" ? (
<CodeBlock code={nestedCode} lang="json" fillHeight hideCopyButton />
) : (
<CodeBlock code={jsonCode} lang="json" fillHeight hideCopyButton />
<CodeBlock
code={specCode}
lang={specLang}
fillHeight
hideCopyButton
/>
)}
</div>
</div>
@@ -735,19 +898,21 @@ ${jsx}
: 0}
</button>
{/* Code tabs */}
{(["json", "nested", "stream", "catalog"] as const).map((tab) => (
<button
key={tab}
onClick={() => setMobileView(tab)}
className={`text-xs font-mono transition-colors shrink-0 ${
mobileView === tab
? "text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{tab}
</button>
))}
{(["spec", "visual", "nested", "stream", "catalog"] as const).map(
(tab) => (
<button
key={tab}
onClick={() => setMobileView(tab)}
className={`text-xs font-mono transition-colors shrink-0 ${
mobileView === tab
? "text-foreground"
: "text-muted-foreground hover:text-foreground"
}`}
>
{tab === "spec" ? (format === "yaml" ? "yaml" : "json") : tab}
</button>
),
)}
<div className="flex-1" />
{/* Preview / code toggle */}
{[
@@ -770,7 +935,41 @@ ${jsx}
{/* Main content area */}
<div className="flex-1 min-h-0 overflow-auto">
{mobileView === "catalog" ? (
{mobileView === "visual" ? (
currentTree ? (
<JsonEditor
value={currentTree as unknown as JsonValue}
onChange={handleVisualChange}
readOnly={isStreaming}
sidebarOpen={false}
height="100%"
className="h-full"
style={
{
"--vj-bg": "var(--background)",
"--vj-bg-panel": "var(--background)",
"--vj-bg-hover": "var(--muted)",
"--vj-bg-selected": "var(--primary)",
"--vj-bg-selected-muted": "var(--muted)",
"--vj-text": "var(--foreground)",
"--vj-text-selected": "var(--primary-foreground)",
"--vj-text-muted": "var(--muted-foreground)",
"--vj-text-dim": "var(--muted-foreground)",
"--vj-border": "var(--border)",
"--vj-border-subtle": "var(--border)",
"--vj-accent": "var(--primary)",
"--vj-accent-muted": "var(--muted)",
"--vj-input-bg": "var(--secondary)",
"--vj-input-border": "var(--border)",
} as React.CSSProperties
}
/>
) : (
<div className="text-muted-foreground/50 p-3 text-sm font-mono">
{"// generate a spec to edit visually"}
</div>
)
) : mobileView === "catalog" ? (
<div className="h-full flex flex-col text-sm">
<div className="flex items-center gap-3 px-3 h-9 border-b border-border">
{(
@@ -891,7 +1090,7 @@ ${jsx}
currentRawLines.length > 0 ? (
<CodeBlock
code={currentRawLines.join("\n")}
lang="json"
lang={streamLang}
fillHeight
hideCopyButton
/>
@@ -907,8 +1106,13 @@ ${jsx}
fillHeight
hideCopyButton
/>
) : mobileView === "json" ? (
<CodeBlock code={jsonCode} lang="json" fillHeight hideCopyButton />
) : mobileView === "spec" ? (
<CodeBlock
code={specCode}
lang={specLang}
fillHeight
hideCopyButton
/>
) : mobileView === "preview" ? (
currentTree && currentTree.root ? (
<div className="w-full min-h-full flex items-center justify-center p-6">
@@ -984,20 +1188,18 @@ ${jsx}
rows={2}
/>
<div className="flex justify-between items-center mt-2">
{versions.length > 0 ? (
<button
onClick={() => {
setVersions([]);
setSelectedVersionId(null);
clear();
}}
className="text-xs text-muted-foreground hover:text-foreground transition-colors"
>
Clear
</button>
) : (
<div />
)}
<PlaygroundControls
format={format}
setFormat={setFormat}
editModes={editModes}
setEditModes={setEditModes}
showClear={versions.length > 0}
onClear={() => {
setVersions([]);
setSelectedVersionId(null);
clear();
}}
/>
{isStreaming ? (
<button
onClick={() => clear()}
@@ -1074,9 +1276,16 @@ ${jsx}
)}
</div>
{version.usage && (
<div className="flex items-center gap-2 mt-1 ml-6">
<div className="mt-1 ml-6">
<span className="text-[10px] font-mono text-muted-foreground/60">
{version.usage.totalTokens.toLocaleString()} tokens
{formatTokens(
version.usage.promptTokens -
version.usage.cachedTokens,
)}{" "}
in · {formatTokens(version.usage.completionTokens)} out
{version.usage.cachedTokens > 0
? ` · ${formatTokens(version.usage.cachedTokens)} cached`
: ""}
</span>
</div>
)}
+266
View File
@@ -0,0 +1,266 @@
"use client";
import { useCallback, useEffect, useRef, useState } from "react";
import { useRouter } from "next/navigation";
import { Dialog, DialogContent, DialogTitle } from "@/components/ui/dialog";
import { cn } from "@/lib/utils";
type SearchResult = {
title: string;
href: string;
section: string;
snippet: string;
};
export function Search() {
const router = useRouter();
const [open, setOpen] = useState(false);
const [query, setQuery] = useState("");
const [results, setResults] = useState<SearchResult[]>([]);
const [loading, setLoading] = useState(false);
const [activeIndex, setActiveIndex] = useState(0);
const inputRef = useRef<HTMLInputElement>(null);
const listRef = useRef<HTMLDivElement>(null);
const abortRef = useRef<AbortController | null>(null);
const navigate = useCallback(
(href: string) => {
setOpen(false);
setQuery("");
setResults([]);
router.push(href);
},
[router],
);
useEffect(() => {
function onKeyDown(e: KeyboardEvent) {
if ((e.metaKey || e.ctrlKey) && e.key === "k") {
e.preventDefault();
setOpen((prev) => !prev);
}
}
document.addEventListener("keydown", onKeyDown);
return () => document.removeEventListener("keydown", onKeyDown);
}, []);
useEffect(() => {
if (open) {
setTimeout(() => inputRef.current?.focus(), 0);
} else {
setQuery("");
setResults([]);
}
}, [open]);
useEffect(() => {
const q = query.trim();
if (!q) {
setResults([]);
setLoading(false);
return;
}
setLoading(true);
abortRef.current?.abort();
const controller = new AbortController();
abortRef.current = controller;
const timeout = setTimeout(async () => {
try {
const res = await fetch(`/api/search?q=${encodeURIComponent(q)}`, {
signal: controller.signal,
});
if (res.ok) {
const data = await res.json();
setResults(data.results);
}
} catch {
// aborted or network error
} finally {
if (!controller.signal.aborted) {
setLoading(false);
}
}
}, 150);
return () => {
clearTimeout(timeout);
controller.abort();
};
}, [query]);
useEffect(() => {
setActiveIndex(0);
}, [results]);
function handleKeyDown(e: React.KeyboardEvent) {
if (e.key === "ArrowDown") {
e.preventDefault();
setActiveIndex((i) => Math.min(i + 1, results.length - 1));
} else if (e.key === "ArrowUp") {
e.preventDefault();
setActiveIndex((i) => Math.max(i - 1, 0));
} else if (e.key === "Enter" && results[activeIndex]) {
e.preventDefault();
navigate(results[activeIndex].href);
}
}
useEffect(() => {
const active = listRef.current?.querySelector("[data-active='true']");
active?.scrollIntoView({ block: "nearest" });
}, [activeIndex]);
const hasQuery = query.trim().length > 0;
return (
<>
<button
onClick={() => setOpen(true)}
className="hidden sm:flex items-center gap-2 rounded-md border border-border bg-muted/50 px-3 py-1.5 text-sm text-muted-foreground hover:text-foreground hover:border-foreground/25 transition-colors"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<circle cx="11" cy="11" r="8" />
<path d="m21 21-4.3-4.3" />
</svg>
Search docs
<kbd className="pointer-events-none ml-1 inline-flex items-center gap-0.5 rounded border border-border bg-background px-1.5 py-0.5 font-mono text-[10px] text-muted-foreground">
<span>&#8984;</span>K
</kbd>
</button>
<button
onClick={() => setOpen(true)}
className="sm:hidden flex items-center text-muted-foreground hover:text-foreground transition-colors"
aria-label="Search docs"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="16"
height="16"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<circle cx="11" cy="11" r="8" />
<path d="m21 21-4.3-4.3" />
</svg>
</button>
<Dialog open={open} onOpenChange={setOpen}>
<DialogContent
showCloseButton={false}
className="gap-0 p-0 sm:max-w-lg"
>
<DialogTitle className="sr-only">Search documentation</DialogTitle>
<div className="flex items-center gap-2 border-b px-3">
<svg
xmlns="http://www.w3.org/2000/svg"
width="16"
height="16"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
className="shrink-0 text-muted-foreground"
>
<circle cx="11" cy="11" r="8" />
<path d="m21 21-4.3-4.3" />
</svg>
<input
ref={inputRef}
value={query}
onChange={(e) => setQuery(e.target.value)}
onKeyDown={handleKeyDown}
placeholder="Search docs..."
className="flex-1 bg-transparent py-3 text-sm outline-none placeholder:text-muted-foreground"
/>
{query && (
<button
onClick={() => setQuery("")}
className="text-muted-foreground hover:text-foreground"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="14"
height="14"
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
>
<path d="M18 6 6 18" />
<path d="m6 6 12 12" />
</svg>
</button>
)}
</div>
<div
ref={listRef}
className="max-h-[min(60vh,400px)] overflow-y-auto p-2"
>
{loading && hasQuery ? (
<div className="flex items-center justify-center py-6">
<div className="h-4 w-4 animate-spin rounded-full border-2 border-muted-foreground border-t-transparent" />
</div>
) : hasQuery && results.length === 0 ? (
<p className="py-6 text-center text-sm text-muted-foreground">
No results found.
</p>
) : !hasQuery ? (
<p className="py-6 text-center text-sm text-muted-foreground">
Type to search documentation...
</p>
) : (
results.map((item, i) => (
<button
key={item.href}
data-active={i === activeIndex}
onClick={() => navigate(item.href)}
onMouseEnter={() => setActiveIndex(i)}
className={cn(
"flex w-full flex-col gap-1 rounded-md px-3 py-2 text-left transition-colors",
i === activeIndex
? "bg-accent text-accent-foreground"
: "text-foreground",
)}
>
<div className="flex items-center justify-between gap-2">
<span className="text-sm font-medium">{item.title}</span>
<span className="shrink-0 text-xs text-muted-foreground">
{item.section}
</span>
</div>
{item.snippet && (
<span className="line-clamp-2 text-xs text-muted-foreground leading-relaxed">
{item.snippet}
</span>
)}
</button>
))
)}
</div>
</DialogContent>
</Dialog>
</>
);
}
+83
View File
@@ -0,0 +1,83 @@
"use client";
import { useEffect, useState } from "react";
import { usePathname } from "next/navigation";
import { cn } from "@/lib/utils";
type Heading = {
id: string;
text: string;
level: number;
};
function getHeadings(): Heading[] {
const article = document.querySelector("article");
if (!article) return [];
const elements = article.querySelectorAll("h2[id], h3[id]");
return Array.from(elements).map((el) => ({
id: el.id,
text: el.textContent?.replace(/#$/, "").trim() ?? "",
level: el.tagName === "H3" ? 3 : 2,
}));
}
export function TableOfContents() {
const pathname = usePathname();
const [headings, setHeadings] = useState<Heading[]>([]);
const [activeId, setActiveId] = useState<string>("");
useEffect(() => {
const timer = setTimeout(() => setHeadings(getHeadings()), 100);
return () => clearTimeout(timer);
}, [pathname]);
useEffect(() => {
if (headings.length === 0) return;
const observer = new IntersectionObserver(
(entries) => {
for (const entry of entries) {
if (entry.isIntersecting) {
setActiveId(entry.target.id);
}
}
},
{ rootMargin: "0px 0px -75% 0px", threshold: 0.1 },
);
for (const h of headings) {
const el = document.getElementById(h.id);
if (el) observer.observe(el);
}
return () => observer.disconnect();
}, [headings]);
if (headings.length === 0) return null;
return (
<nav aria-label="On this page">
<h4 className="text-xs font-medium text-muted-foreground uppercase tracking-wider mb-3">
On this page
</h4>
<ul className="space-y-1">
{headings.map((h) => (
<li key={h.id}>
<a
href={`#${h.id}`}
className={cn(
"block text-xs leading-relaxed py-0.5 transition-colors",
h.level === 3 && "pl-3",
activeId === h.id
? "text-foreground"
: "text-muted-foreground hover:text-foreground",
)}
>
{h.text}
</a>
</li>
))}
</ul>
</nav>
);
}
+1 -1
View File
@@ -1,4 +1,4 @@
import { nextJsConfig } from "@repo/eslint-config/next-js";
import { nextJsConfig } from "@internal/eslint-config/next-js";
/** @type {import("eslint").Linter.Config[]} */
export default [
+21 -22
View File
@@ -16,6 +16,7 @@ export const docsNavigation: NavSection[] = [
{ title: "Introduction", href: "/docs" },
{ title: "Installation", href: "/docs/installation" },
{ title: "Quick Start", href: "/docs/quick-start" },
{ title: "Skills", href: "/docs/skills" },
{ title: "Migration Guide", href: "/docs/migration" },
{ title: "Changelog", href: "/docs/changelog" },
],
@@ -27,13 +28,16 @@ export const docsNavigation: NavSection[] = [
{ title: "Schemas", href: "/docs/schemas" },
{ title: "Catalog", href: "/docs/catalog" },
{ title: "Data Binding", href: "/docs/data-binding" },
{ title: "Computed Values", href: "/docs/computed-values" },
{ title: "Visibility", href: "/docs/visibility" },
{ title: "Watchers", href: "/docs/watchers" },
{ title: "Validation", href: "/docs/validation" },
],
},
{
title: "Rendering",
items: [
{ title: "Renderers", href: "/docs/renderers" },
{ title: "Registry", href: "/docs/registry" },
{ title: "Streaming", href: "/docs/streaming" },
{ title: "Generation Modes", href: "/docs/generation-modes" },
@@ -41,28 +45,7 @@ export const docsNavigation: NavSection[] = [
},
{
title: "Examples",
items: [
{
title: "Chat",
href: "https://github.com/vercel-labs/json-render/tree/main/examples/chat",
external: true,
},
{
title: "Dashboard",
href: "https://github.com/vercel-labs/json-render/tree/main/examples/dashboard",
external: true,
},
{
title: "React Native",
href: "https://github.com/vercel-labs/json-render/tree/main/examples/react-native",
external: true,
},
{
title: "Remotion",
href: "https://github.com/vercel-labs/json-render/tree/main/examples/remotion",
external: true,
},
],
items: [{ title: "Browse All Examples", href: "/examples" }],
},
{
title: "Guides",
@@ -86,10 +69,26 @@ export const docsNavigation: NavSection[] = [
items: [
{ title: "@json-render/core", href: "/docs/api/core" },
{ title: "@json-render/react", href: "/docs/api/react" },
{ title: "@json-render/react-pdf", href: "/docs/api/react-pdf" },
{ title: "@json-render/react-email", href: "/docs/api/react-email" },
{ title: "@json-render/shadcn", href: "/docs/api/shadcn" },
{ title: "@json-render/react-native", href: "/docs/api/react-native" },
{ title: "@json-render/image", href: "/docs/api/image" },
{ title: "@json-render/remotion", href: "/docs/api/remotion" },
{ title: "@json-render/vue", href: "/docs/api/vue" },
{ title: "@json-render/svelte", href: "/docs/api/svelte" },
{ title: "@json-render/solid", href: "/docs/api/solid" },
{
title: "@json-render/react-three-fiber",
href: "/docs/api/react-three-fiber",
},
{ title: "@json-render/codegen", href: "/docs/api/codegen" },
{ title: "@json-render/mcp", href: "/docs/api/mcp" },
{ title: "@json-render/redux", href: "/docs/api/redux" },
{ title: "@json-render/zustand", href: "/docs/api/zustand" },
{ title: "@json-render/jotai", href: "/docs/api/jotai" },
{ title: "@json-render/xstate", href: "/docs/api/xstate" },
{ title: "@json-render/yaml", href: "/docs/api/yaml" },
],
},
];
+152
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@@ -0,0 +1,152 @@
export type Example = {
slug: string;
title: string;
description: string;
tags: string[];
githubPath: string;
demoUrl?: string;
};
const GITHUB_BASE =
"https://github.com/vercel-labs/json-render/tree/main/examples";
export const examples: Example[] = [
{
slug: "chat",
title: "Chat",
description:
"AI chat app with tool calling, streaming UI, and rich components powered by the AI SDK.",
tags: ["React", "Next.js", "AI"],
githubPath: "examples/chat",
demoUrl: "https://chat-demo.json-render.dev",
},
{
slug: "dashboard",
title: "Dashboard",
description:
"AI-generated dashboard with drag-and-drop, charts, and real-time data binding.",
tags: ["React", "Next.js", "AI"],
githubPath: "examples/dashboard",
demoUrl: "https://dashboard-demo.json-render.dev",
},
{
slug: "no-ai",
title: "No AI",
description:
"Static specs rendered without any AI — forms, cards, tables, and more from hardcoded JSON.",
tags: ["React", "Next.js"],
githubPath: "examples/no-ai",
demoUrl: "https://no-ai-demo.json-render.dev",
},
{
slug: "svelte",
title: "Svelte",
description:
"Svelte renderer demo with counter, todo list, and two-way data binding.",
tags: ["Svelte", "Vite"],
githubPath: "examples/svelte",
demoUrl: "https://svelte-demo.json-render.dev",
},
{
slug: "svelte-chat",
title: "Svelte Chat",
description: "AI chat app built with SvelteKit and the Svelte renderer.",
tags: ["Svelte", "SvelteKit", "AI"],
githubPath: "examples/svelte-chat",
demoUrl: "https://json-render-svelte-chat-demo.labs.vercel.dev",
},
{
slug: "vue",
title: "Vue",
description:
"Vue renderer demo with counter, todo list, and two-way data binding.",
tags: ["Vue", "Vite"],
githubPath: "examples/vue",
demoUrl: "https://vue-demo.json-render.dev",
},
{
slug: "solid",
title: "Solid",
description:
"Solid renderer demo with counter, todo list, and two-way data binding.",
tags: ["Solid", "Vite"],
githubPath: "examples/solid",
demoUrl: "https://solid-demo.json-render.dev",
},
{
slug: "vite-renderers",
title: "Multi-Framework Renderers",
description:
"Same spec rendered with React, Vue, Svelte, and Solid side by side — hot-swappable at runtime.",
tags: ["React", "Vue", "Svelte", "Solid", "Vite"],
githubPath: "examples/vite-renderers",
},
{
slug: "react-email",
title: "React Email",
description:
"Generate HTML and plain-text emails from json-render specs using React Email.",
tags: ["React", "Email"],
githubPath: "examples/react-email",
demoUrl: "https://react-email-demo.json-render.dev",
},
{
slug: "react-pdf",
title: "React PDF",
description:
"Generate PDF documents from json-render specs with @react-pdf/renderer.",
tags: ["React", "PDF"],
githubPath: "examples/react-pdf",
demoUrl: "https://react-pdf-demo.json-render.dev",
},
{
slug: "react-three-fiber",
title: "React Three Fiber",
description:
"3D scenes generated from json-render specs using Three.js and React Three Fiber.",
tags: ["React", "3D"],
githubPath: "examples/react-three-fiber",
demoUrl: "https://react-three-fiber-demo.json-render.dev",
},
{
slug: "react-native",
title: "React Native",
description:
"Mobile app rendering json-render specs with Expo and React Native.",
tags: ["React Native", "Expo"],
githubPath: "examples/react-native",
},
{
slug: "remotion",
title: "Remotion",
description: "Generate videos from json-render specs using Remotion.",
tags: ["React", "Video"],
githubPath: "examples/remotion",
demoUrl: "https://remotion-demo.json-render.dev",
},
{
slug: "image",
title: "Image",
description:
"Generate OG images and social cards from json-render specs using Satori.",
tags: ["React", "Image"],
githubPath: "examples/image",
demoUrl: "https://image-demo.json-render.dev",
},
{
slug: "mcp",
title: "MCP App",
description:
"MCP server that serves shadcn UIs to Claude, ChatGPT, Cursor, and VS Code.",
tags: ["React", "MCP", "Vite"],
githubPath: "examples/mcp",
},
];
export const allTags = Array.from(
new Set(examples.flatMap((e) => e.tags)),
).sort();
export function getGitHubUrl(example: Example): string {
return `${GITHUB_BASE}/${example.slug}`;
}
+39
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@@ -0,0 +1,39 @@
import type { Metadata } from "next";
import { PAGE_TITLES } from "./page-titles";
const DESCRIPTION =
"The Generative UI framework. Generate dashboards, widgets, and apps from prompts — safely constrained to components you define.";
export function pageMetadata(slug: string): Metadata {
const title = PAGE_TITLES[slug];
if (!title) return {};
const displayTitle = title.replace(/\n/g, " ");
const fullTitle = `${displayTitle} | json-render`;
const ogImageUrl = slug ? `/og/${slug}` : "/og";
return {
title: displayTitle,
openGraph: {
type: "website",
locale: "en_US",
siteName: "json-render",
title: fullTitle,
description: DESCRIPTION,
images: [
{
url: ogImageUrl,
width: 1200,
height: 630,
alt: `${displayTitle} - json-render`,
},
],
},
twitter: {
card: "summary_large_image",
title: fullTitle,
description: DESCRIPTION,
images: [ogImageUrl],
},
};
}
+19
View File
@@ -11,6 +11,7 @@ export const PAGE_TITLES: Record<string, string> = {
// Top-level
playground: "Playground",
examples: "Examples",
// Docs
docs: "Introduction",
@@ -23,7 +24,10 @@ export const PAGE_TITLES: Record<string, string> = {
"docs/streaming": "Streaming",
"docs/validation": "Validation",
"docs/data-binding": "Data Binding",
"docs/computed-values": "Computed Values",
"docs/visibility": "Visibility",
"docs/watchers": "Watchers",
"docs/renderers": "Renderers",
"docs/generation-modes": "Generation Modes",
"docs/code-export": "Code Export",
"docs/custom-schema": "Custom Schema & Renderer",
@@ -34,13 +38,28 @@ export const PAGE_TITLES: Record<string, string> = {
"docs/ag-ui": "AG-UI Integration",
"docs/migration": "Migration Guide",
"docs/changelog": "Changelog",
"docs/skills": "Skills",
// API references
"docs/api/core": "@json-render/core API",
"docs/api/react": "@json-render/react API",
"docs/api/vue": "@json-render/vue API",
"docs/api/solid": "@json-render/solid API",
"docs/api/react-pdf": "@json-render/react-pdf API",
"docs/api/react-email": "@json-render/react-email API",
"docs/api/react-native": "@json-render/react-native API",
"docs/api/svelte": "@json-render/svelte API",
"docs/api/codegen": "@json-render/codegen API",
"docs/api/image": "@json-render/image API",
"docs/api/remotion": "@json-render/remotion API",
"docs/api/shadcn": "@json-render/shadcn API",
"docs/api/mcp": "@json-render/mcp API",
"docs/api/redux": "@json-render/redux API",
"docs/api/zustand": "@json-render/zustand API",
"docs/api/jotai": "@json-render/jotai API",
"docs/api/react-three-fiber": "@json-render/react-three-fiber API",
"docs/api/xstate": "@json-render/xstate API",
"docs/api/yaml": "@json-render/yaml API",
};
/**
+76
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@@ -0,0 +1,76 @@
import { readFile } from "fs/promises";
import { join } from "path";
import { docsNavigation } from "./docs-navigation";
import { mdxToCleanMarkdown } from "./mdx-to-markdown";
export type IndexEntry = {
title: string;
href: string;
section: string;
content: string;
};
let cached: IndexEntry[] | null = null;
function stripMarkdown(md: string): string {
return (
md
// Remove fenced code blocks entirely
.replace(/```[\s\S]*?```/g, "")
// Remove inline code
.replace(/`[^`]+`/g, "")
// Remove markdown links, keep text
.replace(/\[([^\]]+)\]\([^)]+\)/g, "$1")
// Remove heading markers
.replace(/^#{1,6}\s+/gm, "")
// Remove bold/italic markers
.replace(/\*{1,3}([^*]+)\*{1,3}/g, "$1")
// Remove HTML tags
.replace(/<[^>]+>/g, "")
// Collapse whitespace
.replace(/\n{3,}/g, "\n\n")
.trim()
);
}
function mdxFileForSlug(slug: string): string {
const docsRoot = join(process.cwd(), "app", "(main)", "docs");
if (slug === "/docs") {
return join(docsRoot, "page.mdx");
}
const rest = slug.replace(/^\/docs\/?/, "");
return join(docsRoot, ...rest.split("/"), "page.mdx");
}
export async function getSearchIndex(): Promise<IndexEntry[]> {
if (cached) return cached;
const entries: IndexEntry[] = [];
for (const section of docsNavigation) {
for (const item of section.items) {
if (item.external) continue;
try {
const raw = await readFile(mdxFileForSlug(item.href), "utf-8");
const md = mdxToCleanMarkdown(raw);
const content = stripMarkdown(md);
entries.push({
title: item.title,
href: item.href,
section: section.title,
content,
});
} catch {
entries.push({
title: item.title,
href: item.href,
section: section.title,
content: "",
});
}
}
}
cached = entries;
return entries;
}
+155
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@@ -0,0 +1,155 @@
import type { Spec, JsonPatch } from "@json-render/core";
import { setByPath, getByPath, removeByPath } from "@json-render/core";
export function setSpecValue(
newSpec: Spec,
path: string,
value: unknown,
): void {
if (path === "/root") {
newSpec.root = value as string;
return;
}
if (path === "/state") {
newSpec.state = value as Record<string, unknown>;
return;
}
if (path.startsWith("/state/")) {
if (!newSpec.state) newSpec.state = {};
setByPath(
newSpec.state as Record<string, unknown>,
path.slice("/state".length),
value,
);
return;
}
if (path.startsWith("/elements/")) {
const pathParts = path.slice("/elements/".length).split("/");
const elementKey = pathParts[0];
if (!elementKey) return;
if (pathParts.length === 1) {
if (value == null || typeof value !== "object") return;
const el = value as Record<string, unknown>;
newSpec.elements[elementKey] = {
...el,
type: typeof el.type === "string" ? el.type : "",
props: el.props != null && typeof el.props === "object" ? el.props : {},
children: Array.isArray(el.children) ? el.children : [],
} as Spec["elements"][string];
} else {
const element = newSpec.elements[elementKey];
if (element) {
const newElement = { ...element };
setByPath(
newElement as unknown as Record<string, unknown>,
"/" + pathParts.slice(1).join("/"),
value,
);
newSpec.elements[elementKey] = newElement;
}
}
}
}
export function removeSpecValue(newSpec: Spec, path: string): void {
if (path === "/state") {
delete newSpec.state;
return;
}
if (path.startsWith("/state/") && newSpec.state) {
removeByPath(
newSpec.state as Record<string, unknown>,
path.slice("/state".length),
);
return;
}
if (path.startsWith("/elements/")) {
const pathParts = path.slice("/elements/".length).split("/");
const elementKey = pathParts[0];
if (!elementKey) return;
if (pathParts.length === 1) {
delete newSpec.elements[elementKey];
} else {
const element = newSpec.elements[elementKey];
if (element) {
const newElement = { ...element };
removeByPath(
newElement as unknown as Record<string, unknown>,
"/" + pathParts.slice(1).join("/"),
);
newSpec.elements[elementKey] = newElement;
}
}
}
}
export function getSpecValue(spec: Spec, path: string): unknown {
if (path === "/root") return spec.root;
if (path === "/state") return spec.state;
if (path.startsWith("/state/") && spec.state) {
return getByPath(
spec.state as Record<string, unknown>,
path.slice("/state".length),
);
}
return getByPath(spec as unknown as Record<string, unknown>, path);
}
export function normalizeSpec(spec: Spec): void {
if (
spec.state === null ||
(spec.state !== undefined && typeof spec.state !== "object")
) {
spec.state = undefined;
}
for (const key of Object.keys(spec.elements)) {
const el = spec.elements[key];
if (!el || typeof el !== "object") {
delete spec.elements[key];
continue;
}
if (el.props == null || typeof el.props !== "object") {
spec.elements[key] = { ...el, props: {} } as Spec["elements"][string];
}
if (!Array.isArray(spec.elements[key]!.children)) {
spec.elements[key] = {
...spec.elements[key]!,
children: [],
} as Spec["elements"][string];
}
}
}
export function applySpecPatch(spec: Spec, patch: JsonPatch): Spec {
const newSpec = {
...spec,
elements: { ...spec.elements },
...(spec.state ? { state: { ...spec.state } } : {}),
};
switch (patch.op) {
case "add":
case "replace":
setSpecValue(newSpec, patch.path, patch.value);
break;
case "remove":
removeSpecValue(newSpec, patch.path);
break;
case "move":
if (patch.from) {
const moveValue = getSpecValue(newSpec, patch.from);
removeSpecValue(newSpec, patch.from);
setSpecValue(newSpec, patch.path, moveValue);
}
break;
case "copy":
if (patch.from) {
setSpecValue(newSpec, patch.path, getSpecValue(newSpec, patch.from));
}
break;
case "test":
break;
}
normalizeSpec(newSpec);
return newSpec;
}
+482
View File
@@ -0,0 +1,482 @@
"use client";
import { useState, useCallback, useRef, useEffect } from "react";
import type { Spec, JsonPatch, EditMode } from "@json-render/core";
import { deepMergeSpec, diffToPatches } from "@json-render/core";
import { parse as yamlParse, stringify as yamlStringify } from "yaml";
import { applyPatch as applyUnifiedDiff } from "diff";
import {
createYamlStreamCompiler,
YAML_SPEC_FENCE,
YAML_EDIT_FENCE,
YAML_PATCH_FENCE,
DIFF_FENCE,
FENCE_CLOSE,
} from "@json-render/yaml";
import { applySpecPatch } from "./spec-patch";
export type StreamFormat = "jsonl" | "yaml";
export interface TokenUsage {
promptTokens: number;
completionTokens: number;
totalTokens: number;
cachedTokens: number;
cacheWriteTokens: number;
}
export interface UsePlaygroundStreamOptions {
api: string;
format: StreamFormat;
editModes?: EditMode[];
onError?: (error: Error) => void;
onComplete?: (spec: Spec) => void;
}
export interface UsePlaygroundStreamReturn {
spec: Spec | null;
isStreaming: boolean;
error: Error | null;
usage: TokenUsage | null;
rawLines: string[];
send: (prompt: string, context?: Record<string, unknown>) => Promise<void>;
clear: () => void;
}
// ── JSONL helpers ──
type ParsedLine =
| { type: "patch"; patch: JsonPatch }
| { type: "usage"; usage: TokenUsage }
| { type: "json-edit"; mergeObj: Record<string, unknown> }
| null;
function parseLine(line: string): ParsedLine {
try {
const trimmed = line.trim();
if (!trimmed || trimmed.startsWith("//")) return null;
const parsed = JSON.parse(trimmed);
if (parsed.__meta === "usage") {
return {
type: "usage",
usage: {
promptTokens: parsed.promptTokens ?? 0,
completionTokens: parsed.completionTokens ?? 0,
totalTokens: parsed.totalTokens ?? 0,
cachedTokens: parsed.cachedTokens ?? 0,
cacheWriteTokens: parsed.cacheWriteTokens ?? 0,
},
};
}
if (parsed.__json_edit === true) {
const mergeObj = { ...parsed };
delete mergeObj.__json_edit;
return { type: "json-edit", mergeObj };
}
return { type: "patch", patch: parsed as JsonPatch };
} catch {
return null;
}
}
type FenceState = "outside" | "yaml-spec" | "yaml-edit" | "yaml-patch" | "diff";
// ── Hook ──
export function usePlaygroundStream({
api,
format,
editModes,
onError,
onComplete,
}: UsePlaygroundStreamOptions): UsePlaygroundStreamReturn {
const [spec, setSpec] = useState<Spec | null>(null);
const [isStreaming, setIsStreaming] = useState(false);
const [error, setError] = useState<Error | null>(null);
const [usage, setUsage] = useState<TokenUsage | null>(null);
const [rawLines, setRawLines] = useState<string[]>([]);
const rawLinesRef = useRef<string[]>([]);
const abortControllerRef = useRef<AbortController | null>(null);
const onCompleteRef = useRef(onComplete);
onCompleteRef.current = onComplete;
const onErrorRef = useRef(onError);
onErrorRef.current = onError;
const formatRef = useRef(format);
formatRef.current = format;
const editModesRef = useRef(editModes);
editModesRef.current = editModes;
const clear = useCallback(() => {
setSpec(null);
setError(null);
}, []);
const send = useCallback(
async (prompt: string, context?: Record<string, unknown>) => {
abortControllerRef.current = new AbortController();
setIsStreaming(true);
setError(null);
setUsage(null);
rawLinesRef.current = [];
setRawLines([]);
const previousSpec = context?.previousSpec as Spec | undefined;
let currentSpec: Spec =
previousSpec && previousSpec.root
? { ...previousSpec, elements: { ...previousSpec.elements } }
: { root: "", elements: {} };
setSpec(currentSpec);
try {
const response = await fetch(api, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
prompt,
context,
format: formatRef.current,
editModes: editModesRef.current,
}),
signal: abortControllerRef.current.signal,
});
if (!response.ok) {
let errorMessage = `HTTP error: ${response.status}`;
try {
const errorData = await response.json();
if (errorData.message) errorMessage = errorData.message;
else if (errorData.error) errorMessage = errorData.error;
} catch {
// use default
}
throw new Error(errorMessage);
}
const reader = response.body?.getReader();
if (!reader) throw new Error("No response body");
const decoder = new TextDecoder();
let buffer = "";
if (formatRef.current === "yaml") {
// ── YAML streaming ──
let fenceState: FenceState = "outside";
const compiler = createYamlStreamCompiler<Record<string, unknown>>();
let yamlEditAccumulated = "";
let yamlPatchAccumulated = "";
let diffAccumulated = "";
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split("\n");
buffer = lines.pop() ?? "";
for (const line of lines) {
const trimmed = line.trim();
// Check for usage metadata (appended after stream)
if (trimmed.startsWith("{") && trimmed.includes('"__meta"')) {
try {
const parsed = JSON.parse(trimmed);
if (parsed.__meta === "usage") {
setUsage({
promptTokens: parsed.promptTokens ?? 0,
completionTokens: parsed.completionTokens ?? 0,
totalTokens: parsed.totalTokens ?? 0,
cachedTokens: parsed.cachedTokens ?? 0,
cacheWriteTokens: parsed.cacheWriteTokens ?? 0,
});
continue;
}
} catch {
// not JSON
}
}
rawLinesRef.current.push(line);
if (fenceState === "outside") {
if (
trimmed === YAML_SPEC_FENCE ||
trimmed.startsWith(YAML_SPEC_FENCE + " ")
) {
fenceState = "yaml-spec";
compiler.reset();
} else if (
trimmed === YAML_EDIT_FENCE ||
trimmed.startsWith(YAML_EDIT_FENCE + " ")
) {
fenceState = "yaml-edit";
yamlEditAccumulated = "";
} else if (
trimmed === YAML_PATCH_FENCE ||
trimmed.startsWith(YAML_PATCH_FENCE + " ")
) {
fenceState = "yaml-patch";
yamlPatchAccumulated = "";
} else if (
trimmed === DIFF_FENCE ||
trimmed.startsWith(DIFF_FENCE + " ")
) {
fenceState = "diff";
diffAccumulated = "";
}
} else if (trimmed === FENCE_CLOSE || trimmed === "````") {
if (fenceState === "yaml-spec") {
const { result, newPatches } = compiler.flush();
if (result && typeof result === "object" && result.root) {
for (const patch of newPatches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
} else if (fenceState === "yaml-edit") {
try {
const editObj = yamlParse(yamlEditAccumulated);
if (editObj && typeof editObj === "object") {
const merged = deepMergeSpec(
currentSpec as unknown as Record<string, unknown>,
editObj as Record<string, unknown>,
);
const patches = diffToPatches(
currentSpec as unknown as Record<string, unknown>,
merged,
);
for (const patch of patches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
} catch {
// Invalid YAML edit
}
} else if (fenceState === "yaml-patch") {
for (const patchLine of yamlPatchAccumulated.split("\n")) {
const t = patchLine.trim();
if (!t) continue;
try {
const patch = JSON.parse(t) as JsonPatch;
if (patch.op) {
currentSpec = applySpecPatch(currentSpec, patch);
}
} catch {
// Skip invalid JSON lines
}
}
setSpec({ ...currentSpec });
} else if (fenceState === "diff") {
try {
const specYaml = yamlStringify(currentSpec, { indent: 2 });
const patched = applyUnifiedDiff(specYaml, diffAccumulated);
if (typeof patched === "string") {
const parsed = yamlParse(patched);
if (parsed && typeof parsed === "object") {
const patches = diffToPatches(
currentSpec as unknown as Record<string, unknown>,
parsed as Record<string, unknown>,
);
for (const patch of patches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
}
} catch {
// Diff apply or reparse failed
}
}
fenceState = "outside";
} else if (fenceState === "yaml-spec") {
const { newPatches } = compiler.push(line + "\n");
if (newPatches.length > 0) {
for (const patch of newPatches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
} else if (fenceState === "yaml-edit") {
yamlEditAccumulated += line + "\n";
} else if (fenceState === "yaml-patch") {
yamlPatchAccumulated += line + "\n";
} else if (fenceState === "diff") {
diffAccumulated += line + "\n";
}
}
setRawLines([...rawLinesRef.current]);
}
// Process remaining buffer
if (buffer.trim()) {
const trimmed = buffer.trim();
if (trimmed.startsWith("{") && trimmed.includes('"__meta"')) {
try {
const parsed = JSON.parse(trimmed);
if (parsed.__meta === "usage") {
setUsage({
promptTokens: parsed.promptTokens ?? 0,
completionTokens: parsed.completionTokens ?? 0,
totalTokens: parsed.totalTokens ?? 0,
cachedTokens: parsed.cachedTokens ?? 0,
cacheWriteTokens: parsed.cacheWriteTokens ?? 0,
});
}
} catch {
// not JSON
}
} else if (fenceState === "yaml-spec") {
compiler.push(buffer);
const { result, newPatches } = compiler.flush();
if (result && typeof result === "object" && result.root) {
for (const patch of newPatches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
}
}
} else {
// ── JSONL streaming ──
let jsonlDiffState: "outside" | "diff" = "outside";
let jsonlDiffAccumulated = "";
while (true) {
const { done, value } = await reader.read();
if (done) break;
buffer += decoder.decode(value, { stream: true });
const lines = buffer.split("\n");
buffer = lines.pop() ?? "";
for (const line of lines) {
const trimmed = line.trim();
if (!trimmed) continue;
// Diff fence detection within JSONL mode
if (jsonlDiffState === "outside") {
if (
trimmed === DIFF_FENCE ||
trimmed.startsWith(DIFF_FENCE + " ")
) {
jsonlDiffState = "diff";
jsonlDiffAccumulated = "";
continue;
}
} else if (
jsonlDiffState === "diff" &&
(trimmed === FENCE_CLOSE || trimmed === "````")
) {
try {
const specJson = JSON.stringify(currentSpec, null, 2);
const patched = applyUnifiedDiff(
specJson,
jsonlDiffAccumulated,
);
if (typeof patched === "string") {
const parsed = JSON.parse(patched);
if (parsed && typeof parsed === "object") {
const patches = diffToPatches(
currentSpec as unknown as Record<string, unknown>,
parsed as Record<string, unknown>,
);
for (const patch of patches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
setSpec({ ...currentSpec });
}
}
} catch {
// Diff apply failed
}
jsonlDiffState = "outside";
continue;
}
if (jsonlDiffState === "diff") {
jsonlDiffAccumulated += line + "\n";
rawLinesRef.current.push(line);
continue;
}
// Standard JSONL line parsing
const result = parseLine(trimmed);
if (!result) continue;
if (result.type === "usage") {
setUsage(result.usage);
} else if (result.type === "json-edit") {
const merged = deepMergeSpec(
currentSpec as unknown as Record<string, unknown>,
result.mergeObj,
);
const patches = diffToPatches(
currentSpec as unknown as Record<string, unknown>,
merged,
);
for (const patch of patches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
rawLinesRef.current.push(trimmed);
setSpec({ ...currentSpec });
} else {
rawLinesRef.current.push(trimmed);
currentSpec = applySpecPatch(currentSpec, result.patch);
setSpec({ ...currentSpec });
}
}
setRawLines([...rawLinesRef.current]);
}
if (buffer.trim()) {
const trimmed = buffer.trim();
const result = parseLine(trimmed);
if (result) {
if (result.type === "usage") {
setUsage(result.usage);
} else if (result.type === "json-edit") {
const merged = deepMergeSpec(
currentSpec as unknown as Record<string, unknown>,
result.mergeObj,
);
const patches = diffToPatches(
currentSpec as unknown as Record<string, unknown>,
merged,
);
for (const patch of patches) {
currentSpec = applySpecPatch(currentSpec, patch);
}
rawLinesRef.current.push(trimmed);
setSpec({ ...currentSpec });
} else {
rawLinesRef.current.push(trimmed);
currentSpec = applySpecPatch(currentSpec, result.patch);
setSpec({ ...currentSpec });
}
}
}
}
onCompleteRef.current?.(currentSpec);
} catch (err) {
if ((err as Error).name === "AbortError") return;
const error = err instanceof Error ? err : new Error(String(err));
setError(error);
onErrorRef.current?.(error);
} finally {
setIsStreaming(false);
}
},
[api],
);
useEffect(() => {
return () => {
abortControllerRef.current?.abort();
};
}, []);
return { spec, isStreaming, error, usage, rawLines, send, clear };
}
+14 -4
View File
@@ -35,16 +35,26 @@ export function useMDXComponents(components: MDXComponents): MDXComponents {
h2: ({ children }: { children?: React.ReactNode }) => {
const id = slugify(extractText(children));
return (
<h2 id={id} className="text-xl font-semibold mt-12 mb-4">
{children}
<h2 id={id} className="group text-xl font-semibold mt-12 mb-4">
<a href={`#${id}`} className="no-underline hover:no-underline">
{children}
<span className="ml-2 text-muted-foreground/0 group-hover:text-muted-foreground transition-colors select-none">
#
</span>
</a>
</h2>
);
},
h3: ({ children }: { children?: React.ReactNode }) => {
const id = slugify(extractText(children));
return (
<h3 id={id} className="text-lg font-medium mt-8 mb-3">
{children}
<h3 id={id} className="group text-lg font-medium mt-8 mb-3">
<a href={`#${id}`} className="no-underline hover:no-underline">
{children}
<span className="ml-2 text-muted-foreground/0 group-hover:text-muted-foreground transition-colors select-none">
#
</span>
</a>
</h3>
);
},
+11 -6
View File
@@ -1,11 +1,12 @@
{
"name": "web",
"version": "0.1.0",
"version": "0.1.9",
"type": "module",
"private": true,
"license": "Apache-2.0",
"scripts": {
"dev": "next dev --turbopack",
"predev": "command -v portless >/dev/null 2>&1 || (echo '\\nportless is required but not installed. Run: npm i -g portless\\nSee: https://github.com/vercel-labs/portless\\n' && exit 1)",
"dev": "portless json-render next dev --turbopack",
"build": "next build",
"start": "next start",
"lint": "eslint --max-warnings 0",
@@ -17,6 +18,7 @@
"@json-render/codegen": "workspace:*",
"@json-render/core": "workspace:*",
"@json-render/react": "workspace:*",
"@json-render/yaml": "workspace:*",
"@mdx-js/loader": "^3.1.1",
"@mdx-js/mdx": "^3.1.1",
"@mdx-js/react": "^3.1.1",
@@ -28,12 +30,14 @@
"@upstash/redis": "^1.36.1",
"@vercel/analytics": "^1.6.1",
"@vercel/speed-insights": "^1.3.1",
"@visual-json/react": "0.1.1",
"ai": "^6.0.33",
"bash-tool": "1.3.14",
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"diff": "^8.0.3",
"embla-carousel-react": "^8.6.0",
"just-bash": "2.9.6",
"geist": "1.7.0",
"lucide-react": "^0.562.0",
"next": "16.1.1",
"next-themes": "^0.4.6",
@@ -48,11 +52,12 @@
"tailwind-merge": "^3.4.0",
"unist-util-visit": "5.1.0",
"vaul": "^1.1.2",
"zod": "^4.0.0"
"yaml": "^2.8.2",
"zod": "^4.3.6"
},
"devDependencies": {
"@repo/eslint-config": "workspace:*",
"@repo/typescript-config": "workspace:*",
"@internal/eslint-config": "workspace:*",
"@internal/typescript-config": "workspace:*",
"@tailwindcss/postcss": "^4.1.18",
"@types/mdx": "^2.0.13",
"@types/node": "^22.15.3",
Binary file not shown.
+1 -1
View File
@@ -1,5 +1,5 @@
{
"extends": "@repo/typescript-config/nextjs.json",
"extends": "@internal/typescript-config/nextjs.json",
"compilerOptions": {
"plugins": [
{
+15
View File
@@ -0,0 +1,15 @@
# Vercel AI Gateway
# Automatically authenticated when deployed on Vercel
# For local development, get your key from https://vercel.com/ai-gateway
AI_GATEWAY_API_KEY=
# AI Model Configuration
# Default: anthropic/claude-haiku-4.5
AI_GATEWAY_MODEL=anthropic/claude-haiku-4.5
# Rate Limiting (Upstash Redis)
# Optional - rate limiting is disabled when these are not set
KV_REST_API_URL=
KV_REST_API_TOKEN=
RATE_LIMIT_PER_MINUTE=10
RATE_LIMIT_PER_DAY=100
+82
View File
@@ -0,0 +1,82 @@
# example-chat
## 0.1.9
### Patch Changes
- Updated dependencies [43b7515]
- @json-render/core@0.14.1
- @json-render/react@0.14.1
- @json-render/shadcn@0.14.1
## 0.1.8
### Patch Changes
- Updated dependencies [a8afd8b]
- @json-render/core@0.14.0
- @json-render/react@0.14.0
- @json-render/shadcn@0.14.0
## 0.1.7
### Patch Changes
- Updated dependencies [5b32de8]
- @json-render/core@0.13.0
- @json-render/react@0.13.0
- @json-render/shadcn@0.13.0
## 0.1.6
### Patch Changes
- Updated dependencies [54a1ecf]
- @json-render/core@0.12.1
- @json-render/react@0.12.1
- @json-render/shadcn@0.12.1
## 0.1.5
### Patch Changes
- Updated dependencies [63c339b]
- @json-render/core@0.12.0
- @json-render/react@0.12.0
- @json-render/shadcn@0.12.0
## 0.1.4
### Patch Changes
- Updated dependencies [3f1e71e]
- @json-render/core@0.11.0
- @json-render/react@0.11.0
- @json-render/shadcn@0.11.0
## 0.1.3
### Patch Changes
- Updated dependencies [9cef4e9]
- @json-render/core@0.10.0
- @json-render/react@0.10.0
- @json-render/shadcn@0.10.0
## 0.1.2
### Patch Changes
- Updated dependencies [b103676]
- @json-render/react@0.9.1
- @json-render/shadcn@0.9.1
- @json-render/core@0.9.1
## 0.1.1
### Patch Changes
- Updated dependencies [1d755c1]
- @json-render/core@0.9.0
- @json-render/react@0.9.0
- @json-render/shadcn@0.9.0
+26
View File
@@ -1,4 +1,5 @@
import { agent } from "@/lib/agent";
import { minuteRateLimit, dailyRateLimit } from "@/lib/rate-limit";
import {
convertToModelMessages,
createUIMessageStream,
@@ -6,10 +7,35 @@ import {
type UIMessage,
} from "ai";
import { pipeJsonRender } from "@json-render/core";
import { headers } from "next/headers";
export const maxDuration = 60;
export async function POST(req: Request) {
const headersList = await headers();
const ip = headersList.get("x-forwarded-for")?.split(",")[0] ?? "anonymous";
const [minuteResult, dailyResult] = await Promise.all([
minuteRateLimit.limit(ip),
dailyRateLimit.limit(ip),
]);
if (!minuteResult.success || !dailyResult.success) {
const isMinuteLimit = !minuteResult.success;
return new Response(
JSON.stringify({
error: "Rate limit exceeded",
message: isMinuteLimit
? "Too many requests. Please wait a moment before trying again."
: "Daily limit reached. Please try again tomorrow.",
}),
{
status: 429,
headers: { "Content-Type": "application/json" },
},
);
}
const body = await req.json();
const uiMessages: UIMessage[] = body.messages;
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After

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+1 -1
View File
@@ -1,4 +1,4 @@
import { nextJsConfig } from "@repo/eslint-config/next-js";
import { nextJsConfig } from "@internal/eslint-config/next-js";
/** @type {import("eslint").Linter.Config[]} */
export default [
+1 -1
View File
@@ -130,7 +130,7 @@ When the user asks for a quiz, test, or Q&A, build an interactive experience:
4. You can also add a final score section that becomes visible when all questions are submitted.
${explorerCatalog.prompt({
mode: "chat",
mode: "inline",
customRules: [
"NEVER use viewport height classes (min-h-screen, h-screen) — the UI renders inside a fixed-size container.",
"Prefer Grid with columns='2' or columns='3' for side-by-side layouts.",
+57
View File
@@ -0,0 +1,57 @@
import { Ratelimit } from "@upstash/ratelimit";
import { Redis } from "@upstash/redis";
// Lazy initialization to avoid errors when Redis env vars are not configured
let _minuteRateLimit: Ratelimit | null = null;
let _dailyRateLimit: Ratelimit | null = null;
function getRedis(): Redis | null {
const url = process.env.KV_REST_API_URL;
const token = process.env.KV_REST_API_TOKEN;
if (!url || !token) {
return null;
}
return new Redis({ url, token });
}
// No-op rate limiter for when Redis is not configured
const noopRateLimiter = {
limit: async () => ({ success: true, limit: 0, remaining: 0, reset: 0 }),
};
const MINUTE_LIMIT = Number(process.env.RATE_LIMIT_PER_MINUTE) || 10;
const DAILY_LIMIT = Number(process.env.RATE_LIMIT_PER_DAY) || 100;
// Requests per minute (sliding window)
export const minuteRateLimit = {
limit: async (identifier: string) => {
if (!_minuteRateLimit) {
const redis = getRedis();
if (!redis) return noopRateLimiter.limit();
_minuteRateLimit = new Ratelimit({
redis,
limiter: Ratelimit.slidingWindow(MINUTE_LIMIT, "1 m"),
prefix: "ratelimit:chat:minute",
});
}
return _minuteRateLimit.limit(identifier);
},
};
// Requests per day (fixed window)
export const dailyRateLimit = {
limit: async (identifier: string) => {
if (!_dailyRateLimit) {
const redis = getRedis();
if (!redis) return noopRateLimiter.limit();
_dailyRateLimit = new Ratelimit({
redis,
limiter: Ratelimit.fixedWindow(DAILY_LIMIT, "1 d"),
prefix: "ratelimit:chat:daily",
});
}
return _dailyRateLimit.limit(identifier);
},
};
+1 -1
View File
@@ -1,6 +1,6 @@
/// <reference types="next" />
/// <reference types="next/image-types/global" />
import "./.next/types/routes.d.ts";
import "./.next/dev/types/routes.d.ts";
// NOTE: This file should not be edited
// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.
+7 -4
View File
@@ -1,10 +1,11 @@
{
"name": "example-chat",
"version": "0.1.0",
"version": "0.1.9",
"type": "module",
"private": true,
"scripts": {
"dev": "next dev --turbopack",
"predev": "command -v portless >/dev/null 2>&1 || (echo '\\nportless is required but not installed. Run: npm i -g portless\\nSee: https://github.com/vercel-labs/portless\\n' && exit 1)",
"dev": "portless chat-demo.json-render next dev --turbopack",
"build": "next build",
"start": "next start",
"lint": "eslint --max-warnings 0",
@@ -33,10 +34,12 @@
"streamdown": "^2.2.0",
"tailwind-merge": "^3.4.0",
"three": "^0.182.0",
"zod": "4.3.5"
"@upstash/ratelimit": "^2.0.8",
"@upstash/redis": "^1.37.0",
"zod": "4.3.6"
},
"devDependencies": {
"@repo/eslint-config": "workspace:*",
"@internal/eslint-config": "workspace:*",
"@tailwindcss/postcss": "^4.1.18",
"@types/node": "^22.10.0",
"@types/react": "19.2.3",
+7
View File
@@ -4,3 +4,10 @@ DATABASE_URL=postgresql://postgres:postgres@localhost:5432/json_render_dashboard
# AI (optional - for UI generation)
AI_GATEWAY_API_KEY=
AI_GATEWAY_MODEL=anthropic/claude-haiku-4.5
# Rate Limiting (Upstash Redis)
# Optional - rate limiting is disabled when these are not set
KV_REST_API_URL=
KV_REST_API_TOKEN=
RATE_LIMIT_PER_MINUTE=10
RATE_LIMIT_PER_DAY=100
+82
View File
@@ -0,0 +1,82 @@
# example-dashboard
## 0.1.9
### Patch Changes
- Updated dependencies [43b7515]
- @json-render/core@0.14.1
- @json-render/codegen@0.14.1
- @json-render/react@0.14.1
## 0.1.8
### Patch Changes
- Updated dependencies [a8afd8b]
- @json-render/core@0.14.0
- @json-render/codegen@0.14.0
- @json-render/react@0.14.0
## 0.1.7
### Patch Changes
- Updated dependencies [5b32de8]
- @json-render/core@0.13.0
- @json-render/codegen@0.13.0
- @json-render/react@0.13.0
## 0.1.6
### Patch Changes
- Updated dependencies [54a1ecf]
- @json-render/core@0.12.1
- @json-render/codegen@0.12.1
- @json-render/react@0.12.1
## 0.1.5
### Patch Changes
- Updated dependencies [63c339b]
- @json-render/core@0.12.0
- @json-render/codegen@0.12.0
- @json-render/react@0.12.0
## 0.1.4
### Patch Changes
- Updated dependencies [3f1e71e]
- @json-render/core@0.11.0
- @json-render/codegen@0.11.0
- @json-render/react@0.11.0
## 0.1.3
### Patch Changes
- Updated dependencies [9cef4e9]
- @json-render/core@0.10.0
- @json-render/react@0.10.0
- @json-render/codegen@0.10.0
## 0.1.2
### Patch Changes
- Updated dependencies [b103676]
- @json-render/react@0.9.1
- @json-render/core@0.9.1
- @json-render/codegen@0.9.1
## 0.1.1
### Patch Changes
- Updated dependencies [1d755c1]
- @json-render/core@0.9.0
- @json-render/react@0.9.0
- @json-render/codegen@0.9.0
@@ -1,6 +1,8 @@
import { streamText } from "ai";
import { buildUserPrompt } from "@json-render/core";
import { dashboardCatalog } from "@/lib/render/catalog";
import { minuteRateLimit, dailyRateLimit } from "@/lib/rate-limit";
import { headers } from "next/headers";
export const maxDuration = 30;
@@ -9,6 +11,30 @@ const SYSTEM_PROMPT = dashboardCatalog.prompt();
const DEFAULT_MODEL = "anthropic/claude-haiku-4.5";
export async function POST(req: Request) {
const headersList = await headers();
const ip = headersList.get("x-forwarded-for")?.split(",")[0] ?? "anonymous";
const [minuteResult, dailyResult] = await Promise.all([
minuteRateLimit.limit(ip),
dailyRateLimit.limit(ip),
]);
if (!minuteResult.success || !dailyResult.success) {
const isMinuteLimit = !minuteResult.success;
return new Response(
JSON.stringify({
error: "Rate limit exceeded",
message: isMinuteLimit
? "Too many requests. Please wait a moment before trying again."
: "Daily limit reached. Please try again tomorrow.",
}),
{
status: 429,
headers: { "Content-Type": "application/json" },
},
);
}
const { prompt, context } = await req.json();
const userPrompt = buildUserPrompt({
Binary file not shown.

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+21 -17
View File
@@ -196,24 +196,28 @@ export function Widget({
onDeleted?.();
}, [widgetId, onDeleted]);
const handleStateChange = useCallback((path: string, value: unknown) => {
setState((prev) => {
const next = { ...prev };
// Convert path like "customerForm/name" to nested object
const parts = path.split("/");
let current: Record<string, unknown> = next;
for (let i = 0; i < parts.length - 1; i++) {
const part = parts[i]!;
if (!(part in current) || typeof current[part] !== "object") {
current[part] = {};
const handleStateChange = useCallback(
(changes: Array<{ path: string; value: unknown }>) => {
setState((prev) => {
const next = { ...prev };
for (const { path, value } of changes) {
const parts = path.split("/");
let current: Record<string, unknown> = next;
for (let i = 0; i < parts.length - 1; i++) {
const part = parts[i]!;
if (!(part in current) || typeof current[part] !== "object") {
current[part] = {};
}
current = current[part] as Record<string, unknown>;
}
const lastPart = parts[parts.length - 1]!;
current[lastPart] = value;
}
current = current[part] as Record<string, unknown>;
}
const lastPart = parts[parts.length - 1]!;
current[lastPart] = value;
return next;
});
}, []);
return next;
});
},
[],
);
// Use spec from stream, or initial spec for saved widgets
const currentSpec = spec || initialSpec;
+1 -1
View File
@@ -1,4 +1,4 @@
import { nextJsConfig } from "@repo/eslint-config/next-js";
import { nextJsConfig } from "@internal/eslint-config/next-js";
/** @type {import("eslint").Linter.Config[]} */
export default [
+57
View File
@@ -0,0 +1,57 @@
import { Ratelimit } from "@upstash/ratelimit";
import { Redis } from "@upstash/redis";
// Lazy initialization to avoid errors when Redis env vars are not configured
let _minuteRateLimit: Ratelimit | null = null;
let _dailyRateLimit: Ratelimit | null = null;
function getRedis(): Redis | null {
const url = process.env.KV_REST_API_URL;
const token = process.env.KV_REST_API_TOKEN;
if (!url || !token) {
return null;
}
return new Redis({ url, token });
}
// No-op rate limiter for when Redis is not configured
const noopRateLimiter = {
limit: async () => ({ success: true, limit: 0, remaining: 0, reset: 0 }),
};
const MINUTE_LIMIT = Number(process.env.RATE_LIMIT_PER_MINUTE) || 10;
const DAILY_LIMIT = Number(process.env.RATE_LIMIT_PER_DAY) || 100;
// Requests per minute (sliding window)
export const minuteRateLimit = {
limit: async (identifier: string) => {
if (!_minuteRateLimit) {
const redis = getRedis();
if (!redis) return noopRateLimiter.limit();
_minuteRateLimit = new Ratelimit({
redis,
limiter: Ratelimit.slidingWindow(MINUTE_LIMIT, "1 m"),
prefix: "ratelimit:dashboard:minute",
});
}
return _minuteRateLimit.limit(identifier);
},
};
// Requests per day (fixed window)
export const dailyRateLimit = {
limit: async (identifier: string) => {
if (!_dailyRateLimit) {
const redis = getRedis();
if (!redis) return noopRateLimiter.limit();
_dailyRateLimit = new Ratelimit({
redis,
limiter: Ratelimit.fixedWindow(DAILY_LIMIT, "1 d"),
prefix: "ratelimit:dashboard:daily",
});
}
return _dailyRateLimit.limit(identifier);
},
};
+1 -1
View File
@@ -24,7 +24,7 @@ interface DashboardRendererProps {
spec: Spec | null;
state?: Record<string, unknown>;
setState?: SetState;
onStateChange?: (path: string, value: unknown) => void;
onStateChange?: (changes: Array<{ path: string; value: unknown }>) => void;
loading?: boolean;
}
+1 -1
View File
@@ -1,6 +1,6 @@
/// <reference types="next" />
/// <reference types="next/image-types/global" />
import "./.next/types/routes.d.ts";
import "./.next/dev/types/routes.d.ts";
// NOTE: This file should not be edited
// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.
+7 -4
View File
@@ -1,10 +1,11 @@
{
"name": "example-dashboard",
"version": "0.1.0",
"version": "0.1.9",
"type": "module",
"private": true,
"scripts": {
"dev": "next dev --turbopack",
"predev": "command -v portless >/dev/null 2>&1 || (echo '\\nportless is required but not installed. Run: npm i -g portless\\nSee: https://github.com/vercel-labs/portless\\n' && exit 1)",
"dev": "portless dashboard-demo.json-render next dev --turbopack",
"build": "next build",
"start": "next start",
"lint": "eslint --max-warnings 0",
@@ -39,10 +40,12 @@
"sonner": "^2.0.7",
"tailwind-merge": "^3.4.0",
"vaul": "^1.1.2",
"zod": "^4.0.0"
"@upstash/ratelimit": "^2.0.8",
"@upstash/redis": "^1.37.0",
"zod": "^4.3.6"
},
"devDependencies": {
"@repo/eslint-config": "workspace:*",
"@internal/eslint-config": "workspace:*",
"@tailwindcss/postcss": "^4.1.18",
"@types/node": "^22.10.0",
"@types/react": "19.2.3",

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