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Stop 14 · Real-time CommunicationTopics · 3/6

Server-Sent Events

Part of the Backend Developer Roadmap

In short

A simpler one-way protocol (server-to-client only) for pushing live updates over a single long-lived HTTP connection — a lighter-weight alternative to WebSockets when you don't need bidirectional communication.

How to learn this

  1. 1Build an SSE endpoint that streams live updates to a browser using `EventSource`.
  2. 2Compare SSE's simplicity to WebSockets for a use case like live notifications.
  3. 3Learn SSE automatically reconnects on the client side, unlike raw WebSockets.

More topics at this stop

WebSocketsSocket.ioLong PollingPub/Sub PatternReal-time Scaling Challenges

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