gistfile1.rb

PUBNUB_QUEUE = GirlFriday::WorkQueue.new(:pubnub, size: 3) do |msg|
  pubnub = Pubnub.new(TestApp::Application.config.pubnub_publish_key, TestApp::Application.config.pubnub_subscribe_key, TestApp::Application.config.pubnub_secret_key, false)
  pubnub.publish({'channel' => msg[:channel], 'message' => msg[:message]})
end

# Here's how I push to the queue:
PUBNUB_QUEUE.push(channel: "room/123", message: {text: 'hello'})

# This is the gem code:
https://github.com/pubnub/pubnub-api/tree/master/ruby/