WebSockets Interactive Guide
Master real-time communication — the WS protocol, connection lifecycle, rooms, horizontal scaling, auth, and binary payloads — with hands-on examples, MCQs, and coding challenges.
Wire Protocol, Lifecycle & Rooms
The upgrade handshake, frame format and control frames, connection states with heartbeat and close codes, plus room-based broadcasting.
Scaling, Security & Performance
Sticky sessions and Redis pub/sub adapters, token and origin-based auth, plus binary frames, compression, and backpressure.