async_sinatra example using additional eventmachine calls

as.rb

require "rubygems"
require "sinatra/async"
require "rack"

class Foo < Sinatra::Base
  register Sinatra::Async

  aget "/foo" do
    EM::add_timer(1) do
      headers "Content-Type" => "text/plain"
      body "Async hello!\n"
    end
  end
end

Rack::Handler::Thin.run(Foo.new)

Running the server

snack(~) % ruby as.rb
>> Thin web server (v1.2.7 codename No Hup)
>> Maximum connections set to 1024
>> Listening on 0.0.0.0:8080, CTRL+C to stop

Test fetch

snack(~) % time curl localhost:8080/foo
Async hello!
curl localhost:8080/foo  0.00s user 0.01s system 0% cpu 1.102 total