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How to subscribe to multiple chat rooms in a chat using Action Cable

Drazen asked in General

All examples i can find are subscribing to one single room by pasing a room as a param when creating the channel but what if i have Room A, B and C an i (as a user) am in all of them.

This is an example with one room http://edgeguides.rubyonrails.org/action_cable_overview.html#client-server-interactions-subscriptions

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I'm doing a series of videos on this as we speak. :)

Basically you'll want to keep track of them server side and then on connect, you'll loop through the connected rooms and stream from each.

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Awesome :)

How do you subscribe on the client to multiple rooms ?

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Bump :)

Do you loop through all the rooms also on the client side and call App.cable.subscriptions.create for each channel or is there a more straight forward way like subscribing to multiple channels at once?

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Hey Drazen,

Handful of different ways to do this. If you know which channels the user is joined to server-side, you can just loop through them and then stream_from for each channel. That will setup several redis pubsub connections so you will receive all the messages across those channels.

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