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A lot of Ruby code is "magic". We'll explain the magic and see how it works using the powerful tools Ruby gives us.
Accept subscription and one-time payments with Stripe in your Rails apps
Building a simplified version of Instagram is a great way to learn Rails.
Expert advice on keeping Rails apps organized and fast.
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Find your next Ruby on Rails Job.
Learn how to implement realtime notifications with ActionCable
If we want to add realtime tracking of which users are online, we can use active websocket connections through ActionCable to keep track.
Check out some behind the scenes of ActionCable to understand how and why it uses Redis
Adding browser notifications for new messages with the Notifications and Page Visiblity APIs
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
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.
Testing ActionCable authentication with Devise is pretty easy, especially when we build our own helpers to stub out Warden
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.
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