Socket.IO: Rooms, Namespaces & Scaling is part of the Pro tier — advanced networking topics including BGP routing, Zero Trust, DDoS attacks, QUIC, TLS certificate chains, and more.
This scenario covers
How Socket.IO abstracts real-time communication — WebSocket with HTTP long-polling fallback, rooms for group messaging, namespaces for app separation, sticky sessions behind a load balancer, and Redis pub/sub adapter for multi-server broadcasting.
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