real time with rails 5

lucas renan

guru sorocaba

action cableseamlessly integrates websockets with the rest of

your rails app

yet another chat app

!

app/channels/rooms_channel.rb

class RoomsChannel < ApplicationCable::Channel def subscribed stream_from 'room_sorocaba_channel' # can be dynamic end

def unsubscribed # Any cleanup needed when channel is unsubscribed end

def send_message(data) ActionCable.server.broadcast('room_sorocaba_channel', data) endend

app/assets/javascripts/cable.js

(function() { this.App || (this.App = {});

App.cable = ActionCable.createConsumer();

}).call(this);

app/assets/javascripts/channels/rooms.jsApp.rooms = App.cable.subscriptions.create("RoomsChannel", { connected: function() { // Called when the subscription is ready for use on the server },

disconnected: function() { // Called when the subscription has been terminated by the server },

received: function(data) { // Called when there's incoming data on the websocket for this channel },

send_message: function() { return this.perform('send_message'); }});

config/routes.rb

# Serve websocket cable requests in-process mount ActionCable.server => '/cable'

config/cable.yml

development: adapter: async

test: adapter: async

production: adapter: redis url: redis://localhost:6379/1

config/environments/production.rb

config.action_cable.url = ENV['CABLE_URL'] config.action_cable.allowed_request_origins = ENV['APP_URL']

app/views/layouts/application.html.erb

<%= action_cable_meta_tag %>

https://github.com/lucasrenan/lucas-chat

heroku tutorialhttps://blog.heroku.com/

realtimerailsimplementingwebsocketsinrails5withactioncable

https://lucas-chat-rails5.herokuapp.com/chat

thanks :)