SproutStack🌱 System Design (Beginner) · Building Blocks · cozy lesson
Realtime: WebSockets & SSE
9 min · 1 min read · no scary math, promise
🤖
You’ve got this. Read a little, play a little — I’ll wait. No rush.
Polling wastes. Long-poll holds. SSE = HTTP stream. WS = socket, sticky + heartbeat + scale via pub/sub backplane.
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Correct answers earn XP (once each).
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