The original title is: "WebSocket Real-Time Architecture: From Connection Pooling to Graceful Reconnection"

Short summary

A practical guide to production WebSocket architecture covering connection pooling, heartbeat patterns, and graceful reconnection. The author shares patterns from building real-time collaboration features, including a FastAPI ConnectionPool class with bounded queues and a TypeScript client with ping/pong heartbeat and automatic reconnection. The core insight: WebSocket architecture is really about what happens when connections break, not when they work.

• •Connection pooling with bounded queues prevents OOM kills at scale
• •Heartbeat ping/pong pattern detects dead connections within 5 seconds
• •Message queuing on the client ensures no data loss during reconnects

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