Note: This is the Vercel-optimized version of the cursors-raw-websocket example. It uses the hono/vercel adapter and is configured for Vercel deployment.

Real-time Collaborative Cursors (Raw WebSocket)

Demonstrates real-time cursor tracking and collaborative canvas using raw WebSocket handlers instead of RivetKit's higher-level WebSocket abstraction.

Getting Started

git clone https://github.com/rivet-dev/rivet.git
cd rivet/examples/cursors-raw-websocket
npm install
npm run dev

Features

• Raw WebSocket handlers: Use onWebsocket for low-level WebSocket control and custom protocols
• Real-time cursor tracking: Broadcast cursor positions to all connected users instantly
• Persistent canvas state: Text labels automatically saved in actor state across sessions
• Multiple rooms: Each room is a separate actor instance with isolated state

Implementation

This example demonstrates low-level WebSocket handling for real-time collaboration:

• Actor Definition (src/backend/registry.ts): Uses raw onWebsocket handler for custom WebSocket protocol implementation

Resources

Read more about WebSockets, state, and events.

License

MIT