Key points covered:
- How SSE works over plain HTTP (no protocol upgrade needed)
- The EventSource API's built-in auto-reconnect with Last-Event-ID
- Real implementations: Node.js server, scaling with Redis Pub/Sub
- Common pitfalls: proxy buffering, connection limits, memory leaks
- When to choose SSE vs WebSockets vs Long Polling
The auto-reconnection feature is the killer - browser automatically resends Last-Event-ID header so your server can resume the stream without missing events. No manual implementation needed.
Working code examples included. Happy to answer questions about production deployments.
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[ 1.1 ms ] story [ 10.5 ms ] threadThe auto-reconnection feature is the killer - browser automatically resends Last-Event-ID header so your server can resume the stream without missing events. No manual implementation needed.
Working code examples included. Happy to answer questions about production deployments.