Testing the combination of Async Sinatra with Em::HttpRequest

gistfile1.rb

require 'rack'
require 'sinatra'
require 'sinatra/async'
require 'em-http-request'

# Trying out sinatra in async request mode.
#
# Run it like so:
#
#   thin -R test.rb -p 4000 start
#
# Test it like so:
#
#   ab -n 10 -c 10 http://127.0.0.1:4000/twitter.json
#
class Test < Sinatra::Base

  # DNS queries aren't async on my system for some reason, so avoid them
  TWITTER_HOST = "199.59.148.83"

  register Sinatra::Async

  aget '/' do
    body "hello async"
  end

  aget '/twitter.json' do
    http = EM::HttpRequest.new("http://#{TWITTER_HOST}/statuses/public_timeline.json").get
    http.errback  {
      body {
        "oh oh, error"
      }
    }
    http.callback {
      body {
        http.response
      }
    }
  end

end

Test.run