adding a check if group_name exists method for channel_layer

[ninjia0]

I have been searching the internet, but I couldn't find a way to check if a specific group name exists in the channel_layer. Are there any methods or approaches to accomplish this?

[carltongibson]

It's not part of the Channel Layer API.

Assuming you're using the PubSub Redis Layer, you could (as one idea) build something around the PUBSUB CHANNELS command. (Apply similar to your needs.)