Ruby/Network/XML RPC

def lookup_upc(upc)
  server = XMLRPC::Client.new2("http://www.upcdatabase.ru/rpc")
  begin
    response = server.call("lookupUPC", upc)
    return response["found"] ? response : nil
  rescue XMLRPC::FaultException => e
    puts "Error: "
    puts e.faultCode
    puts e.faultString
  end
end
product = lookup_upc("018787765654")
product["description"]              
product["size"]                     
lookup_upc("no such UPC")

require "xmlrpc/client"
server = XMLRPC::Client.new2("http://yourURL")
server.call("yourmethod", 5)      
begin
  server.call("noSuchMethod")
rescue XMLRPC::FaultException => e
  puts "Error: fault code #{e.faultCode}"
  puts e.faultString
end