Phase 12 · Real-time Features

Topics

Server-Sent Events

Part of the Full Stack Developer Roadmap.

Summary

A simpler one-way protocol (server-to-client only) for pushing live updates over HTTP — a lighter-weight alternative to WebSockets when your frontend just needs to receive updates, not send them.

How to Learn This

  • 1Build an SSE endpoint on your backend and consume it in React with `EventSource`.
  • 2Compare SSE's simplicity to WebSockets for a use case like live notifications.
  • 3Learn SSE automatically reconnects on the client side, unlike raw WebSockets.

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