ADD action cable for migrate project

app/channels/application_cable/connection.rb

@@ -1,4 +1,20 @@
 module ApplicationCable
   class Connection < ActionCable::Connection::Base
+    identified_by :current_user
+
+    def connect
+      self.current_user = find_verified_user
+      logger.add_tags 'ActionCable', current_user.id
+    end
+
+    private
+      def find_verified_user
+        puts "############### cookies.signed[:signed_user_id]: #{cookies.signed[:user_id]}"
+        if current_user = User.find_by(id: cookies.signed[:user_id])
+          current_user
+        else
+          reject_unauthorized_connection
+        end
+      end
   end
 end