#316 Private Pub

Jan 16, 2012 | 7 minutes | Ajax, Plugins

Private Pub makes it easier than ever to publish and subscribe to real-time events in a Rails app. You can use publish_to with a block of JavaScript or supply a hash for use with JSON.

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          Gemfile
        
gem 'private_pub'

          terminal
        
bundle
rails g private_pub:install
rackup private_pub.ru -s thin -E production

          messages/index.html.erb
        
<%= subscribe_to "/messages/new" %>

          messages/create.js.erb
        
<% publish_to "/messages/new" do %>
  $("#chat").append("<%= j render(@message) %>");
<% end %>

JSON Alternative

          messages_controller.rb
        
PrivatePub.publish_to("/messages/new", message: @message)

          app/assets/javascripts/messages.js.coffee
        
PrivatePub.subscribe "/messages/new", (data, channel) ->
  alert data.message.content