Action Cable is not working with rails 5 - ruby

Question

I am a beginner in Rails 5 and I am trying to implement web sockets in my app. I am trying to copy and run a test app at first and I figure out it is not working as it is not transmitting and receiving the data. received: (data) -> is never called. I also observed that it never gets connected with my redis server either (which I installed with brew). I am pasting all the code below. Thanks in advance.
//room.coffee
App.room = App.cable.subscriptions.create "RoomChannel",
connected: ->
# Called when the subscription is ready for use on the server
disconnected: ->
# Called when the subscription has been terminated by the server
received: (data) ->
alert(data['message'])
speak: (message) ->
#perform 'speak', message: message
room_chanel.rb
# Be sure to restart your server when you modify this file. Action
Cable runs in a loop that does not support auto reloading.
class RoomChannel < ApplicationCable::Channel
def subscribed
stream_from "room_channel"
end
def unsubscribed
# Any cleanup needed when channel is unsubscribed
end
def speak(data)
ActionCable.server.broadcast "room_channel", message: data['message']
end
end
Gemfile
source 'https://rubygems.org'
git_source(:github) do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
"https://github.com/#{repo_name}.git"
end
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.2'
# Use postgresql as the database for Active Record
gem 'sqlite3'
# Use Puma as the app server
gem 'puma'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
gem 'redis'
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5.x'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platform: :mri
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
gem 'web-console', '>= 3.3.0'
gem 'listen', '~> 3.0.5'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
cable.yml
# Action Cable uses Redis by default to administer connections, channels, and sending/receiving messages over the WebSocket.
production:
adapter: redis
url: redis://localhost:6379/1
development:
adapter: redis
url: redis://localhost:6379/1
test:
adapter: redis
url: redis://localhost:6379/1
cable.coffee
# Action Cable provides the framework to deal with WebSockets in Rails.
# You can generate new channels where WebSocket features live using the rails generate channel command.
#
# Turn on the cable connection by removing the comments after the require statements (and ensure it's also on in config/routes.rb).
#
#= require action_cable
#= require_self
#= require_tree ./channels
#
#App ||= {}
App.cable = ActionCable.createConsumer()

Answer 1

You might try to use Action Cable without Redis (since Redis is not strictly required for Action Cable):
development:
adapter: async
test:
adapter: async
production:
adapter: redis
url: redis://localhost:6379/1
But this probably is not the origin of your problem. Your room.coffee lacks some speak-calling code. Add to room.coffee something like this:
$ ->
$('#send_form').submit (event)->
App.room.speak event.currentTarget['message'].value
event.currentTarget['message'].value = ""
event.preventDefault()
false
Here's a template:
<div class="jumbotron">
<form id="send_form">
<label>Message:</label>
<input id="message" type="text" data-behavior="room_speaker">
<br>
<input type="submit" data-behavior="room_speaker">
</form>
</div>