3/2/2023 0 Comments Run rails unicorn https![]() the URL from which requests to the socket connection will be sent. ![]() In production, we need to specify the URL of our app, i.e. ![]() In development, this defaults to localhost:3000. The Web Socket connection can only accept requests from allowed hosts. We need to set the cable URL for our production environment: # config/environments/production.rbĬonfig.web_socket_server_url = "wss:///cable" It will look something like this: REDISTOGO_URL => open up config/redis/cable.yml and configure Redis for the production environment: development: &development Install the Redis To Go add-on: $ heroku addons:create redistogoĬonfirm your Redis To Go URL with: $ heroku config -app | grep REDISTOGO_URL In the Procfile: web: bundle exec puma -p $PORT We need to set Puma as the server for our web processes. If you connect to your server with $ rails s Puma, you should see your ActionCable feature working.įirst, run heroku create in the directory of your app. Now, a new instance of ActionCable will be created every time a new instance of our server is created. This allows us to easily manage our cable connection in both development and production without having to constantly switch back and force between different server URL specifications in the createConsumer function. Instead, we specify the URL in the development and production environment files. Lastly, add the following to your app/views/layouts/ in the head: īy using this tag, we can create our consumer without specifying the server URL as the argument to the createConsumer function. So, our consumer code belongs in app/assets/javascripts/channels/labs.js.erb: //= require cable In this case of this particular app, the Lab model acts as the conversation or chat room. Next, we set the server URL in config/development.rb: config.action_cable.url = "ws://localhost:3000/cable" This will allow you to establish a Web Socket connection, listening for requests on /cable. In your routes file, add the following: mount rver => '/cable' REDIS = Redis.new(:host => uri.host, :port => uri.port, :password => uri.password) Threads_count = Integer(ENV || 5)Įnvironment ENV || 'development'Ĭreate a file, config/redis/cable.yml, in which to specify the Redis URL for each environment: local: &localĬreate a file, config/initializers/redis.rb: uri = URI.parse(ENV || "redis://localhost:6379/" ) Then, set up Puma in config/puma.rb: workers Integer(ENV || 2) Check out this article from Go Rails to see ActionCable used with Passenger.Īdd gem 'puma' to your Gemfile and bundle install. For this app, I chose Puma, although ActionCable can be implemented just as well with Unicorn or Passenger. Here, we'll configure our server to run the cable server in conjunction with our main app, and we'll configure Redis.ĪctionCable can be run together with your Rails app, on a single server, with any threaded server. So, we're assuming we're working with an app that already has ActionCable built out on the client side and on the server side. ![]() This post is about configuring and deploying ActionCable in Rails on a single server. What this app actually does doesn't matter! If you want to learn more about how to implement ActionCable to build out real-time updates, like messaging between users, check out this earlier post. I found it to be a pretty seamless transition and the deployment was roughly 100% less painful than previously. Given this development (and with the encouragement of a few folks out there on the internet), I decided to re-work and re-deploy my earlier application using a single server. As much fun as it was to deploy that app (read: not fun), ActionCable has since been merged into Rails and can now be run alongside your main Rails app, on a single server. In those posts, we saw ActionCable running on a separate, standalone server. In a series of posts from a few months back ( ActionCable Part I, Action Cable Part II), I explored Rails' ActionCable and built out an app in which users can post code snippets in chat room-like forums in real-time. Deploying ActionCable with a Single Server author Deploying ActionCable with a Single Server
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