import ActionCable from 'actioncable' // create App object with key cable == new cosumer (function() { window.App || (window.App = {}); App.cable = ActionCable.createConsumer(); }).call(this); // find chatroom id const chatroomId = document.getElementById('chatroom-hook').dataset["chatroomId"] // create subsciptions App['chatroom' + chatroomId] = App.cable.subscriptions.create({ channel: 'ChatRoomsChannel', room: chatroomId }, { connected: () => { }, received: data => { } }) // Testing ActionCable const testBtn = document.getElementById('test-btn') testBtn.addEventListener('click', event => { fetch(`/chat_rooms/${chatroomId}/cable_testing` , { method: 'POST', body: JSON.stringify({}) }) })