Server-Sent Events

Summary

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.

• 1Build an SSE endpoint that streams live updates to a browser using `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.