Develop Web Service With Ruby on Rails

Create API /app/apis/<object name>.rb
class <object name>Api < ActionWebService::API::Base
   api_method :<method name>,
      :expects => [{:<parameter 1 name> => :string}, {:<parameter 2 name> => :string}],
      :returns => [:string]
end

Create Controller /app/controllers/<object name>_controller.rb
class <object name>Controller < ApplicationController
   def <method name>(<parameter 1 name>, <parameter 2 name>)
      Code Here
   end
end