commit abc553a3a5e7e3df6e3fb6eb944cdbba205f3716
Author: Bas van den Aakster <bvdaakster@gmail.com>
Date:   Sun Nov 2 14:32:53 2025 +0100

    Initial commit: Rondevu TypeScript client
    
    TypeScript client library for Rondevu peer signaling and discovery server.
    
    Features:
    - Fully typed API with TypeScript definitions
    - Support for all Rondevu server endpoints
    - Configurable base URL for any server instance
    - Browser and Node.js compatible
    - Comprehensive documentation and examples
    - Type-safe request/response handling
    
    🤖 Generated with [Claude Code](https://claude.com/claude-code)
    
    Co-Authored-By: Claude <noreply@anthropic.com>

diff --git a/.gitignore b/.gitignore
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+node_modules/
+dist/
+*.log
+.DS_Store
+*.tsbuildinfo
diff --git a/.npmignore b/.npmignore
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+src/
+tsconfig.json
+*.tsbuildinfo
+node_modules/
+.DS_Store
+*.log
diff --git a/README.md b/README.md
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+# @rondevu/client
+
+TypeScript client for interacting with the Rondevu peer signaling and discovery server. Provides a simple, type-safe API for WebRTC peer discovery and connection establishment.
+
+## Installation
+
+```bash
+npm install @rondevu/client
+```
+
+## Usage
+
+### Basic Setup
+
+```typescript
+import { RondevuClient } from '@rondevu/client';
+
+const client = new RondevuClient({
+  baseUrl: 'https://rondevu.example.com',
+  // Optional: custom origin for session isolation
+  origin: 'https://myapp.com'
+});
+```
+
+### Peer Discovery Flow
+
+#### 1. List Available Topics
+
+```typescript
+// Get all topics with peer counts
+const { topics, pagination } = await client.listTopics();
+
+topics.forEach(topic => {
+  console.log(`${topic.topic}: ${topic.count} peers available`);
+});
+```
+
+#### 2. Create an Offer (Peer A)
+
+```typescript
+// Announce availability in a topic
+const { code } = await client.createOffer('my-room', {
+  info: 'peer-A-unique-id',
+  offer: webrtcOfferData
+});
+
+console.log('Session code:', code);
+```
+
+#### 3. Discover Peers (Peer B)
+
+```typescript
+// Find available peers in a topic
+const { sessions } = await client.listSessions('my-room');
+
+// Filter out your own sessions
+const otherPeers = sessions.filter(s => s.info !== 'my-peer-id');
+
+if (otherPeers.length > 0) {
+  const peer = otherPeers[0];
+  console.log('Found peer:', peer.info);
+}
+```
+
+#### 4. Send Answer (Peer B)
+
+```typescript
+// Connect to a peer by answering their offer
+await client.sendAnswer({
+  code: peer.code,
+  answer: webrtcAnswerData,
+  side: 'answerer'
+});
+```
+
+#### 5. Poll for Data (Both Peers)
+
+```typescript
+// Offerer polls for answer
+const offererData = await client.poll(code, 'offerer');
+if (offererData.answer) {
+  console.log('Received answer from peer');
+}
+
+// Answerer polls for offer details
+const answererData = await client.poll(code, 'answerer');
+console.log('Offer candidates:', answererData.offerCandidates);
+```
+
+#### 6. Exchange ICE Candidates
+
+```typescript
+// Send additional signaling data
+await client.sendAnswer({
+  code: sessionCode,
+  candidate: iceCandidate,
+  side: 'offerer' // or 'answerer'
+});
+```
+
+### Health Check
+
+```typescript
+const health = await client.health();
+console.log('Server status:', health.status);
+console.log('Timestamp:', health.timestamp);
+```
+
+## API Reference
+
+### `RondevuClient`
+
+#### Constructor
+
+```typescript
+new RondevuClient(options: RondevuClientOptions)
+```
+
+**Options:**
+- `baseUrl` (string, required): Base URL of the Rondevu server
+- `origin` (string, optional): Origin header for session isolation (defaults to baseUrl origin)
+- `fetch` (function, optional): Custom fetch implementation (for Node.js)
+
+#### Methods
+
+##### `listTopics(page?, limit?)`
+
+Lists all topics with peer counts.
+
+**Parameters:**
+- `page` (number, optional): Page number, default 1
+- `limit` (number, optional): Results per page, default 100, max 1000
+
+**Returns:** `Promise<ListTopicsResponse>`
+
+##### `listSessions(topic)`
+
+Discovers available peers for a given topic.
+
+**Parameters:**
+- `topic` (string): Topic identifier
+
+**Returns:** `Promise<ListSessionsResponse>`
+
+##### `createOffer(topic, request)`
+
+Announces peer availability and creates a new session.
+
+**Parameters:**
+- `topic` (string): Topic identifier (max 256 characters)
+- `request` (CreateOfferRequest):
+  - `info` (string): Peer identifier/metadata (max 1024 characters)
+  - `offer` (string): WebRTC signaling data
+
+**Returns:** `Promise<CreateOfferResponse>`
+
+##### `sendAnswer(request)`
+
+Sends an answer or candidate to an existing session.
+
+**Parameters:**
+- `request` (AnswerRequest):
+  - `code` (string): Session UUID
+  - `answer` (string, optional): Answer signaling data
+  - `candidate` (string, optional): ICE candidate data
+  - `side` ('offerer' | 'answerer'): Which peer is sending
+
+**Returns:** `Promise<AnswerResponse>`
+
+##### `poll(code, side)`
+
+Polls for session data from the other peer.
+
+**Parameters:**
+- `code` (string): Session UUID
+- `side` ('offerer' | 'answerer'): Which side is polling
+
+**Returns:** `Promise<PollOffererResponse | PollAnswererResponse>`
+
+##### `health()`
+
+Checks server health.
+
+**Returns:** `Promise<HealthResponse>`
+
+## TypeScript Types
+
+All types are exported from the main package:
+
+```typescript
+import {
+  RondevuClient,
+  Session,
+  TopicInfo,
+  CreateOfferRequest,
+  AnswerRequest,
+  PollRequest,
+  Side,
+  // ... and more
+} from '@rondevu/client';
+```
+
+## Node.js Usage
+
+For Node.js environments (v18+), the built-in fetch is used automatically. For older Node.js versions, provide a fetch implementation:
+
+```typescript
+import fetch from 'node-fetch';
+import { RondevuClient } from '@rondevu/client';
+
+const client = new RondevuClient({
+  baseUrl: 'https://rondevu.example.com',
+  fetch: fetch as any
+});
+```
+
+## Error Handling
+
+All API methods throw errors with descriptive messages:
+
+```typescript
+try {
+  await client.createOffer('my-room', {
+    info: 'peer-id',
+    offer: data
+  });
+} catch (error) {
+  console.error('Failed to create offer:', error.message);
+}
+```
+
+## License
+
+MIT
diff --git a/package.json b/package.json
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+++ b/package.json
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+{
+  "name": "@rondevu/client",
+  "version": "1.0.0",
+  "description": "TypeScript client for Rondevu peer signaling and discovery server",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "typecheck": "tsc --noEmit",
+    "prepublishOnly": "npm run build"
+  },
+  "keywords": [
+    "webrtc",
+    "p2p",
+    "signaling",
+    "peer-discovery",
+    "rondevu"
+  ],
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "typescript": "^5.9.3"
+  },
+  "files": [
+    "dist",
+    "README.md"
+  ]
+}
diff --git a/src/client.ts b/src/client.ts
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--- /dev/null
+++ b/src/client.ts
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+import {
+  RondevuClientOptions,
+  ListTopicsResponse,
+  ListSessionsResponse,
+  CreateOfferRequest,
+  CreateOfferResponse,
+  AnswerRequest,
+  AnswerResponse,
+  PollRequest,
+  PollOffererResponse,
+  PollAnswererResponse,
+  HealthResponse,
+  ErrorResponse,
+  Side,
+} from './types';
+
+/**
+ * HTTP client for Rondevu peer signaling and discovery server
+ */
+export class RondevuClient {
+  private readonly baseUrl: string;
+  private readonly origin: string;
+  private readonly fetchImpl: typeof fetch;
+
+  /**
+   * Creates a new Rondevu client instance
+   * @param options - Client configuration options
+   */
+  constructor(options: RondevuClientOptions) {
+    this.baseUrl = options.baseUrl.replace(/\/$/, ''); // Remove trailing slash
+    this.origin = options.origin || new URL(this.baseUrl).origin;
+    this.fetchImpl = options.fetch || fetch;
+  }
+
+  /**
+   * Makes an HTTP request to the Rondevu server
+   */
+  private async request<T>(
+    endpoint: string,
+    options: RequestInit = {}
+  ): Promise<T> {
+    const url = `${this.baseUrl}${endpoint}`;
+
+    const headers: Record<string, string> = {
+      'Origin': this.origin,
+      ...(options.headers as Record<string, string>),
+    };
+
+    if (options.body) {
+      headers['Content-Type'] = 'application/json';
+    }
+
+    const response = await this.fetchImpl(url, {
+      ...options,
+      headers,
+    });
+
+    const data = await response.json();
+
+    if (!response.ok) {
+      const error = data as ErrorResponse;
+      throw new Error(error.error || `HTTP ${response.status}: ${response.statusText}`);
+    }
+
+    return data as T;
+  }
+
+  /**
+   * Lists all topics with peer counts
+   *
+   * @param page - Page number (starting from 1)
+   * @param limit - Results per page (max 1000)
+   * @returns List of topics with pagination info
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   * const { topics, pagination } = await client.listTopics();
+   * console.log(`Found ${topics.length} topics`);
+   * ```
+   */
+  async listTopics(page = 1, limit = 100): Promise<ListTopicsResponse> {
+    const params = new URLSearchParams({
+      page: page.toString(),
+      limit: limit.toString(),
+    });
+    return this.request<ListTopicsResponse>(`/?${params}`, {
+      method: 'GET',
+    });
+  }
+
+  /**
+   * Discovers available peers for a given topic
+   *
+   * @param topic - Topic identifier
+   * @returns List of available sessions
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   * const { sessions } = await client.listSessions('my-room');
+   * const otherPeers = sessions.filter(s => s.info !== myPeerId);
+   * ```
+   */
+  async listSessions(topic: string): Promise<ListSessionsResponse> {
+    return this.request<ListSessionsResponse>(`/${encodeURIComponent(topic)}/sessions`, {
+      method: 'GET',
+    });
+  }
+
+  /**
+   * Announces peer availability and creates a new session
+   *
+   * @param topic - Topic identifier for grouping peers (max 256 characters)
+   * @param request - Offer details including peer info and signaling data
+   * @returns Unique session code (UUID)
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   * const { code } = await client.createOffer('my-room', {
+   *   info: 'peer-123',
+   *   offer: signalingData
+   * });
+   * console.log('Session code:', code);
+   * ```
+   */
+  async createOffer(
+    topic: string,
+    request: CreateOfferRequest
+  ): Promise<CreateOfferResponse> {
+    return this.request<CreateOfferResponse>(
+      `/${encodeURIComponent(topic)}/offer`,
+      {
+        method: 'POST',
+        body: JSON.stringify(request),
+      }
+    );
+  }
+
+  /**
+   * Sends an answer or candidate to an existing session
+   *
+   * @param request - Answer details including session code and signaling data
+   * @returns Success confirmation
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   *
+   * // Send answer
+   * await client.sendAnswer({
+   *   code: sessionCode,
+   *   answer: answerData,
+   *   side: 'answerer'
+   * });
+   *
+   * // Send candidate
+   * await client.sendAnswer({
+   *   code: sessionCode,
+   *   candidate: candidateData,
+   *   side: 'offerer'
+   * });
+   * ```
+   */
+  async sendAnswer(request: AnswerRequest): Promise<AnswerResponse> {
+    return this.request<AnswerResponse>('/answer', {
+      method: 'POST',
+      body: JSON.stringify(request),
+    });
+  }
+
+  /**
+   * Polls for session data from the other peer
+   *
+   * @param code - Session UUID
+   * @param side - Which side is polling ('offerer' or 'answerer')
+   * @returns Session data including offers, answers, and candidates
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   *
+   * // Offerer polls for answer
+   * const offererData = await client.poll(sessionCode, 'offerer');
+   * if (offererData.answer) {
+   *   console.log('Received answer:', offererData.answer);
+   * }
+   *
+   * // Answerer polls for offer
+   * const answererData = await client.poll(sessionCode, 'answerer');
+   * console.log('Received offer:', answererData.offer);
+   * ```
+   */
+  async poll(
+    code: string,
+    side: Side
+  ): Promise<PollOffererResponse | PollAnswererResponse> {
+    const request: PollRequest = { code, side };
+    return this.request<PollOffererResponse | PollAnswererResponse>('/poll', {
+      method: 'POST',
+      body: JSON.stringify(request),
+    });
+  }
+
+  /**
+   * Checks server health
+   *
+   * @returns Health status and timestamp
+   *
+   * @example
+   * ```typescript
+   * const client = new RondevuClient({ baseUrl: 'https://example.com' });
+   * const health = await client.health();
+   * console.log('Server status:', health.status);
+   * ```
+   */
+  async health(): Promise<HealthResponse> {
+    return this.request<HealthResponse>('/health', {
+      method: 'GET',
+    });
+  }
+}
diff --git a/src/index.ts b/src/index.ts
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--- /dev/null
+++ b/src/index.ts
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+/**
+ * @rondevu/client - TypeScript client for Rondevu peer signaling server
+ *
+ * @example
+ * ```typescript
+ * import { RondevuClient } from '@rondevu/client';
+ *
+ * const client = new RondevuClient({
+ *   baseUrl: 'https://rondevu.example.com'
+ * });
+ *
+ * // Create an offer
+ * const { code } = await client.createOffer('my-room', {
+ *   info: 'peer-123',
+ *   offer: signalingData
+ * });
+ *
+ * // Discover peers
+ * const { sessions } = await client.listSessions('my-room');
+ *
+ * // Send answer
+ * await client.sendAnswer({
+ *   code: sessions[0].code,
+ *   answer: answerData,
+ *   side: 'answerer'
+ * });
+ * ```
+ */
+
+export { RondevuClient } from './client';
+export * from './types';
diff --git a/src/types.ts b/src/types.ts
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--- /dev/null
+++ b/src/types.ts
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+/**
+ * Session side - identifies which peer in a connection
+ */
+export type Side = 'offerer' | 'answerer';
+
+/**
+ * Session information returned from discovery endpoints
+ */
+export interface Session {
+  /** Unique session identifier (UUID) */
+  code: string;
+  /** Peer identifier/metadata */
+  info: string;
+  /** Signaling data for peer connection */
+  offer: string;
+  /** Additional signaling data from offerer */
+  offerCandidates: string[];
+  /** Unix timestamp when session was created */
+  createdAt: number;
+  /** Unix timestamp when session expires */
+  expiresAt: number;
+}
+
+/**
+ * Topic information with peer count
+ */
+export interface TopicInfo {
+  /** Topic identifier */
+  topic: string;
+  /** Number of available peers in this topic */
+  count: number;
+}
+
+/**
+ * Pagination information
+ */
+export interface Pagination {
+  /** Current page number */
+  page: number;
+  /** Results per page */
+  limit: number;
+  /** Total number of results */
+  total: number;
+  /** Whether there are more results available */
+  hasMore: boolean;
+}
+
+/**
+ * Response from GET / - list all topics
+ */
+export interface ListTopicsResponse {
+  topics: TopicInfo[];
+  pagination: Pagination;
+}
+
+/**
+ * Response from GET /:topic/sessions - list sessions in a topic
+ */
+export interface ListSessionsResponse {
+  sessions: Session[];
+}
+
+/**
+ * Request body for POST /:topic/offer
+ */
+export interface CreateOfferRequest {
+  /** Peer identifier/metadata (max 1024 characters) */
+  info: string;
+  /** Signaling data for peer connection */
+  offer: string;
+}
+
+/**
+ * Response from POST /:topic/offer
+ */
+export interface CreateOfferResponse {
+  /** Unique session identifier (UUID) */
+  code: string;
+}
+
+/**
+ * Request body for POST /answer
+ */
+export interface AnswerRequest {
+  /** Session UUID from the offer */
+  code: string;
+  /** Response signaling data (required if candidate not provided) */
+  answer?: string;
+  /** Additional signaling data (required if answer not provided) */
+  candidate?: string;
+  /** Which peer is sending the data */
+  side: Side;
+}
+
+/**
+ * Response from POST /answer
+ */
+export interface AnswerResponse {
+  success: boolean;
+}
+
+/**
+ * Request body for POST /poll
+ */
+export interface PollRequest {
+  /** Session UUID */
+  code: string;
+  /** Which side is polling */
+  side: Side;
+}
+
+/**
+ * Response from POST /poll when side=offerer
+ */
+export interface PollOffererResponse {
+  /** Answer from answerer (null if not yet received) */
+  answer: string | null;
+  /** Additional signaling data from answerer */
+  answerCandidates: string[];
+}
+
+/**
+ * Response from POST /poll when side=answerer
+ */
+export interface PollAnswererResponse {
+  /** Offer from offerer */
+  offer: string;
+  /** Additional signaling data from offerer */
+  offerCandidates: string[];
+}
+
+/**
+ * Response from POST /poll (union type)
+ */
+export type PollResponse = PollOffererResponse | PollAnswererResponse;
+
+/**
+ * Response from GET /health
+ */
+export interface HealthResponse {
+  status: 'ok';
+  timestamp: number;
+}
+
+/**
+ * Error response structure
+ */
+export interface ErrorResponse {
+  error: string;
+}
+
+/**
+ * Client configuration options
+ */
+export interface RondevuClientOptions {
+  /** Base URL of the Rondevu server (e.g., 'https://example.com') */
+  baseUrl: string;
+  /** Origin header value for session isolation (defaults to baseUrl origin) */
+  origin?: string;
+  /** Optional fetch implementation (for Node.js environments) */
+  fetch?: typeof fetch;
+}
diff --git a/tsconfig.json b/tsconfig.json
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--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "module": "commonjs",
+    "lib": ["ES2020", "DOM"],
+    "declaration": true,
+    "outDir": "./dist",
+    "rootDir": "./src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "moduleResolution": "node",
+    "resolveJsonModule": true
+  },
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist"]
+}