RoomBox

Realtime rooms on Cloudflare Workers + Durable Objects.

What it is

RoomBox is a small collaboration app where each room is owned by one Durable Object. That makes it a clean example for:

• live room state
• ordered message handling
• presence tracking
• per-room storage

Routes

• GET / landing page
• GET /room/:roomId room UI
• GET /api/rooms/:roomId/state room snapshot
• POST /api/rooms/:roomId/message send a message
• GET /api/rooms/:roomId/connect WebSocket connection

Local dev

wrangler dev

Deploy

wrangler deploy

The worker is configured for:

• roombox.ucalyptus.me

Durable Object use

Each room gets its own Durable Object instance. The object stores message history, broadcasts updates to connected clients, and keeps presence counts in one place.