Chapter III: Architecture & Communication
Long Polling, WebSockets, SSE
Techniques for real-time, push-style communication over HTTP.
In short
Three ways to push real-time updates: long polling, WebSockets (bidirectional), and SSE (server→client).
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Key takeaways
- WebSockets = bidirectional; SSE = server→client only.
- Long polling is the simplest, most compatible fallback.