Django 5.0: Elevating Experiences with Server-Sent Events – A Journey from Polling to Real-Time Vibe

on YouTube ↗26m

" summary

Shows how Django 5.0 uses Server-Sent Events + async streaming HTTP responses to replace polling without rewriting the sync app, handling disconnections and cleanup now supported in 5.0; uses plain JavaScript EventSource and htmx on the client, a separate async service that listens to a common channel implemented with Redis Streams, and a Mastodon firehose demo. Local dev works with Daphne; rough load test on a tiny Render instance yields ~500 polling connections vs ~150–200 SSE+Redis streams.

AI-written summary · about

" chapters (11)

1. 0:00Introduction and concepts
2. 1:48Event stream format
3. 4:10Implementing SSE in Django
4. 6:48Local development setup
5. 8:24Real-time use cases
6. 11:02Architecture for real-time
7. 13:52Integrating Redis streams
8. 16:16Backend stream listening
9. 17:42Frontend implementation
10. 18:47SSE versus websockets
11. 21:15Performance and Q&A

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