Hi there,
I understand message bus publishes to target users as per the documentation:
However, I am wondering if there is a way to check permission when a client tries to subscribe to a channel, something like this:
MessageBus.on_subscribe('/bank_account_123') do
if current_user.bank_account == 123
# subscription granted
else
# subscription denied
end
I’m not an expert here, but I think you want to control access on the publishing end where you’re sending stuff to the bus, not on the watching side.
Can you expand a bit more about your use case? What are you trying to build?
We are retooling one of our apps and replacing Action Cable with Message Bus. Our current pattern was to check permission on subscribe but now I think we can use Message Bus the way it is intended. So we are good. Message Bus is very well done btw. 