Building realtime applications with Rails has become a no-brainer since Action Cable came around. With Hotwire, we don't even need to leave the comfort zone of HTML and controllers to introduce live updates to a Rails app. Realtime-ification in every house! Switching to realtime hides many pitfalls you'd better learn beforehand. How to broadcast personalized data? How not to miss updates during connection losses? Who's online? Does it scale? Let me dig into these problems and demonstrate how to resolve them for Action Cable and Hotwire. _____________________________________________________________ Cloud 66 - Deploy your Rails code directly from your repo to any cloud in minutes. Cloud 66 offers the convenience of Heroku, but on any cloud and in any region, with persistent storage, custom network configuration, zero downtime deployments, blue/green and canary releases, WAF, and more. Get $100 Cloud 66 Free Credits with the code: RailsConf2022 ($100 Cloud 66 Free Credits, for the new user only, valid till 31st December 2022) Cloud 66: https://cloud66.com/frameworks/rails?utm_source=e&utm_medium=d&utm_campaign=ytRailsConf-22