-- add notify url to express checkout

Author: Vladislav Veselinov

src/Omnipay/Common/Message/AbstractRequest.php

@@ -272,6 +272,16 @@ public function setCancelUrl($value)
         return $this->setParameter('cancelUrl', $value);
     }
 
+    public function getNotifyUrl()
+    {
+        return $this->getParameter('notifyUrl');
+    }
+
+    public function setNotifyUrl($value)
+    {
+        return $this->setParameter('notifyUrl', $value);
+    }
+
     public function getResponse()
     {
         if (null === $this->response) {

src/Omnipay/PayPal/Message/ExpressAuthorizeRequest.php

@@ -27,6 +27,8 @@ public function getData()
         $data['PAYMENTREQUEST_0_CURRENCYCODE'] = $this->getCurrency();
         $data['PAYMENTREQUEST_0_INVNUM'] = $this->getTransactionId();
         $data['PAYMENTREQUEST_0_DESC'] = $this->getDescription();
+        $data['PAYMENTREQUEST_0_NOTIFYURL'] = $this->getNotifyUrl();
+
 
         // pp express specific fields
         $data['SOLUTIONTYPE'] = $this->getSolutionType();