Action Cable Channel
Callbacks
Action Cable Channel
provides callback hooks that are invoked during the life cycle of a channel:
-
after_subscribe (aliased as on_subscribe)
-
after_unsubscribe (aliased as on_unsubscribe)
Example
class ChatChannel < ApplicationCable::Channel
after_subscribe :send_welcome_message, unless: :subscription_rejected?
after_subscribe :track_subscription
private
def send_welcome_message
broadcast_to(...)
end
def track_subscription
# ...
end
end
Namespace
Included Modules