Switch session_store to cookie_store (so that ActionCable works and for better scalability)

app/channels/application_cable/connection.rb

@@ -9,12 +9,9 @@ module ApplicationCable
     end
 
     def find_user
-      current_user = User.find_by(labs_user_id: "2")
-      if current_user
-        # puts "Current user case, id #{current_user.id}"
+      if current_user = User.find_by(id: cookies.encrypted['_web_session']['current_user_id'])
         current_user
       else
-        puts "Unauthorized connection rejected"
         reject_unauthorized_connection
       end
     end

config/initializers/session_store.rb

-Rails.application.config.session_store :active_record_store, :key => "_web_session"
+Rails.application.config.session_store :cookie_store, :key => "_web_session"
 # Run this regularly to clean up DB: 'rails db:sessions:trim'