How to close connection in Action cable?

Question

How to disconnect a client in Action cable (rails 5)? I would like the user to be completely disconnected (similar to when he closes the tab).

Answer 1

Disconnecting a client from your rails application

If you want to disconnect a client from the rails application, use the disconnect method as described in the documentation: https://api.rubyonrails.org/classes/ActionCable/RemoteConnections.html

module ApplicationCable
  class Connection < ActionCable::Connection::Base
    identified_by :current_user
    ....
  end
end

ActionCable.server.remote_connections.where(current_user: User.find(1)).disconnect

Disconnecting from the client side

If you want to disconnect the user from the client side you can use the disconnect and unsubscribe functions in your javascript:

App.cable = ActionCable.createConsumer(...)

// Closes the websocket connection.
App.cable.disconnect();

// Unsubscribe from a actioncable subscription (without disconnecting the websocket connection)
App.example = App.cable.subscriptions.create(..);
App.example.unsubscribe();