ActiveResource

http://www.ryandaigle.com/articles/2006/06/30/whats-new-in-edge-rails-activeresource-is-here#REST
http://www.therailsway.com/2007/9/3/using-activeresource-to-consume-web-services
http://ihower.idv.tw/blog/archives/1565
http://wiki.rubyonrails.org/rails/pages/ActiveResource

class Auction < ActiveResource::Base
  self.site = ‘http://localhost:3000’
end