Real-Time Rails

on YouTube ↗28m

" summary

Rails 4 exposes ActionController::Live and Rack.hijack so apps can hold raw TCP sockets and stream; Puma plus Ruby threads gives true concurrency. Demonstrations use WebSocket frames, server‑sent events, and the TubeSock gem to simplify code, powering a chat and drawing app that works but leaks memory and crashes under many clients. Deployment warnings: Heroku doesn’t support persistent websockets and nginx defaults kill idle sockets with proxy_read_timeout = 60s (adjustable up to 24 days). Use Postgres NOTIFY/LISTEN or Redis for pub/sub.

AI-written summary · about

" chapters (32)

1. 0:00Introduction
2. 0:33RailsConf
3. 0:55History of Popular Software
4. 1:12IBM
5. 1:35Java
6. 2:05Ruby
7. 2:20Node
8. 2:41The Point
9. 3:22The Metrics
10. 4:22The Problem
11. 4:57A Primer
12. 5:30TCP Sockets
13. 6:17Concurrency
14. 6:39Puma
15. 8:07Race Conditions
16. 9:51Queues
17. 11:52PubSub
18. 13:03Long Pulling
19. 13:39Action Controller Life
20. 14:33ActionControllerLive
21. 15:00Server Sent Events
22. 16:27Demo
23. 16:54Rack Hijack
24. 17:57Rawhide Rock
25. 18:52WebSocket
26. 21:24Chat Demo
27. 21:37Chat Server
28. 22:44Source Code
29. 23:25Patterns
30. 23:58TubeSock
31. 24:57WebSocket Challenges
32. 27:24Thank you

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