The original title is "Build a Real-Time Dashboard with Python, FastAPI, and WebSockets"

Short summary

A practical tutorial on replacing polling-based dashboard updates with WebSockets using FastAPI, Postgres LISTEN/NOTIFY, and Redis pub/sub for horizontal scaling. Covers the single-instance pattern with asyncpg, then extends to multi-pod setups using Redis as a shared broadcast layer. Includes code examples for connection management, auto-reconnect strategies, and event fan-out across backend instances.

• •Replace polling with WebSockets + Postgres LISTEN/NOTIFY for real-time dashboards
• •Scale across pods using Redis pub/sub as a shared broadcast layer
• •Includes working FastAPI code for single-instance and multi-instance setups

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