codigo de amazon web-services

No es el codigo del que este mas orgulloso, de hecho es urgente una pequena reingenieria, pero funciona y de hecho fue por hobbie, ademas de ser mi primer web-service.

Usando NuSOAP.

$GLOBAL_VARS = array("NUSOAP_PATH"   => "../include/nusoap/",


                     "AMAZON_TAG"    => "[SOLICITAR TOKEN]",


                     "AMAZON_WSDL"   => "http://soap.amazon.com/schemas2/AmazonWebServices.wsdl");


class BookInfo


{


        function BookInfo($isbn,$debug=false){


                global $GLOBAL_VARS;


                $this->debug = $debug;





                $this->isbn = $isbn;


                $this->authors = "";


                $this->image = "";


                $this->date = "";





                $this->service = new soapclient($GLOBAL_VARS["AMAZON_WSDL"],true);


                $this->proxy = $this->service->getproxy() or die("no proxy");





                if($this->debug)


                        echo "servicios iniciados";





                $this->getBookInfo();





        }





        function getBookInfo(){


                global $GLOBAL_VARS;


                $params = array(


                                "asin"          => $this->isbn,


                                "tag"           => "webservices-20",


                                "devtag"      => $GLOBAL_VARS["AMAZON_TAG"],


                                "type"          => "heavy",


                                "page"         => 1,


                          );


                if($this->debug)


                        echo "servicio solicitado";


                $this->result = $this->_loadService('AsinSearchRequest',$params);


                if($this->debug)


                        echo "paquete recivido";





        }





        function _loadService($serv, $params){


                return $this->proxy->$serv($params);


        }


}