Phase 12 · Real-time Features
TopicsSocket.io
Part of the Full Stack Developer Roadmap.
Summary
A library built on top of WebSockets (with automatic fallbacks) adding rooms and a simple event-based API — the most common way to add real-time features to a full-stack JS app.
How to Learn This
- 1Build a Socket.io server and connect a React frontend to it.
- 2Use Socket.io 'rooms' to broadcast messages to a specific subset of connected clients.
- 3Sync incoming Socket.io events into your frontend's state (React Query cache or local state).
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