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User mentions in group chat is a crucial feature, so this week we're taking a look at how to add @ mentions for our users in chat with regex and more.
It's important to see that there are unread messages in channels you're not actively viewing. We can use a very simple event in ActionCable to do this and bold channel names with unread messages.
Keeping track of a user's last read timestamp for each chat room is straightforward, especially when we use Stimulus.js to update it from the client side.
If we want to add realtime tracking of which users are online, we can use active websocket connections through ActionCable to keep track.
Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden
Add realtime direct messages between users in our chat application using ActionCable
Tracking unread messages in chat so that we can provide a nice user experience for our users
Adding browser notifications for new messages with the Notifications and Page Visiblity APIs
Check out some behind the scenes of ActionCable to understand how and why it uses Redis
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