17 - exposing web services on your website.rb

O Reilly Ruby Cookbook source code

./script/generate web_service Item add edit fetch
      create  app/apis/
      exists  app/controllers/
      exists  test/functional/
      create  app/apis/item_api.rb
      create  app/controllers/item_controller.rb
      create  test/functional/item_api_test.rb
#---
class ItemApi < ActionWebService::API::Base
  api_method :add, :expects => [:string, :string], :returns => [:int]
  api_method :edit, :expects => [:int, :string, :string], :returns => [:bool]
  api_method :fetch, :expects => [:int], :returns => [Item]
end
#---
class ItemController < ApplicationController
  wsdl_service_name 'Item'

  def add(name, value)
    Item.create(:name => name, :value => value).id
  end

  def edit(id, name, value)
    Item.find(id).update_attributes(:name => name, :value => value)
  end

  def fetch(id)
    Item.find(id)
  end
end
#---
require 'soap/wsdlDriver'

wsdl = "http://localhost:3000/item/service.wsdl"
item_server = SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver

item_id = item_server.add('foo', 'bar')

if item_server.edit(item_id, 'John', 'Doe')
  puts 'Hey, it worked!'
else
  puts 'Back to the drawing board...'
end
# Hey, it worked!

item = item_server.fetch(item_id)
item.class                                          # => SOAP::Mapping::Object
item.name                                           # => "John"
item.value                                          # => "Doe"
#---
require 'xmlrpc/client'
item_server = XMLRPC::Client.new2('http://localhost:3000/item/api')

item_id = item_server.call('Add', 'foo', "bar")
if item_server.call('Edit', item_id, 'John', 'Doe')
  puts 'Hey, it worked!'
else
  puts 'Back to the drawing board...'
end
# Hey, it worked!

item = item_server.call('Fetch', item_id)
# => {"name"=>"John", "id"=>2, "value"=>"Doe"}
item.class                                          # => Hash
#---