The pitfalls of realtime-ification

on YouTube ↗36m

" summary

Explains concrete failure modes and fixes for Rails realtime: Action Cable and Hotwire hide issues around personalization (how to avoid broadcasting sensitive per-user UI), delivery guarantees (fire‑and‑forget leads to missed messages and ordering/duplication), and presence (disconnects and server crashes). Demonstrations include a client-side history+buffer approach, a custom Turbo history stream element, tradeoffs of channel-per-user vs channel-per-group, and protocol work with anycable protocol extensions that add history and presence support.

AI-written summary · about

" chapters (5)

1. 0:00Start
2. 24:49Hotwire Cable
3. 26:43Protocol extensions
4. 28:40Action Cable Presence
5. 32:55Other pitfalls

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