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Phase 14 · Real-time Communication

Topics

WebSockets

Part of the Backend Developer Roadmap.

Summary

A protocol providing a persistent, full-duplex connection between client and server — the foundation for real-time features like chat, live dashboards and multiplayer interactions.

How to Learn This

  • 1Build a raw WebSocket server using Node's `ws` library.
  • 2Learn the WebSocket handshake and how it upgrades from an HTTP connection.
  • 3Handle connection drops and reconnection logic on both client and server.

Previous

Dependency Vulnerability Scanning

Next

Socket.io

More topics in Real-time Communication

Socket.ioServer-Sent EventsLong PollingPub/Sub PatternReal-time Scaling Challenges
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