Short Stack: A simple ruby stack server.

gistfile1.rb

require 'rubygems'
require 'rack'

class Object
  def webapp
    class << self
       define_method :call do |env|
         meth, *attrs = env['PATH_INFO'].split('/').reject(&:empty?)
         [200, {}, [send(meth, *attrs).to_s]]
       end
    end
    self
  end
end

Rack::Handler::WEBrick.run [].webapp, :Port => 9292