add retrieve version from url

Block/Adminhtml/System/Config/Field/Version.php

@@ -30,12 +30,9 @@ class Version extends \Magento\Config\Block\System\Config\Form\Field
 {
 
     /**
-     * Contains list of modules
-     *
-     * @var \Magento\Framework\Module\ModuleListInterface
+     * @var \Adyen\Payment\Helper\Data
      */
-    protected $_moduleList;
-
+    protected $_adyenHelper;
     /**
      * Version constructor.
      * @param \Magento\Framework\Module\ModuleListInterface $moduleList
@@ -43,12 +40,12 @@ class Version extends \Magento\Config\Block\System\Config\Form\Field
      * @param array $data
      */
     public function __construct(
-        \Magento\Framework\Module\ModuleListInterface $moduleList,
+        \Adyen\Payment\Helper\Data $adyenHelper,
         \Magento\Backend\Block\Template\Context $context,
         array $data = []
     ) {
         parent::__construct($context, $data);
-        $this->_moduleList = $moduleList;
+        $this->_adyenHelper = $adyenHelper;
     }
 
     /**
@@ -59,6 +56,6 @@ class Version extends \Magento\Config\Block\System\Config\Form\Field
      */
     protected function _getElementHtml(\Magento\Framework\Data\Form\Element\AbstractElement $element)
     {
-        return (string) $this->_moduleList->getOne("Adyen_Payment")['setup_version'];
+        return $this->_adyenHelper->getModuleVersion();
     }
 }
\ No newline at end of file

Controller/Process/Json.php

@@ -75,6 +75,19 @@ class Json extends \Magento\Framework\App\Action\Action
      */
     public function execute()
     {
+
+        // if version is in the notification string show the module version
+        $response = $this->getRequest()->getParams();
+        if (isset($response['version'])) {
+
+            $this->getResponse()
+                ->clearHeader('Content-Type')
+                ->setHeader('Content-Type', 'text/html')
+                ->setBody($this->_adyenHelper->getModuleVersion());
+
+            return;
+        }
+
         try {
             $notificationItems = json_decode(file_get_contents('php://input'), true);
 

Helper/Data.php

@@ -46,6 +46,11 @@ class Data extends AbstractHelper
      */
     protected $_country;
 
+    /**
+     * @var \Magento\Framework\Module\ModuleListInterface
+     */
+    protected $_moduleList;
+
     /**
      * Data constructor.
      *
@@ -57,12 +62,14 @@ class Data extends AbstractHelper
         \Magento\Framework\App\Helper\Context $context,
         \Magento\Framework\Encryption\EncryptorInterface $encryptor,
         \Magento\Framework\Config\DataInterface $dataStorage,
-        \Magento\Directory\Model\Config\Source\Country $country
+        \Magento\Directory\Model\Config\Source\Country $country,
+        \Magento\Framework\Module\ModuleListInterface $moduleList
     ) {
         parent::__construct($context);
         $this->_encryptor = $encryptor;
         $this->_dataStorage = $dataStorage;
         $this->_country = $country;
+        $this->_moduleList = $moduleList;
     }
 
     /**
@@ -573,4 +580,9 @@ class Data extends AbstractHelper
         }
         return $sepaCountries;
     }
+
+    public function getModuleVersion()
+    {
+        return (string) $this->_moduleList->getOne("Adyen_Payment")['setup_version'];
+    }
 }
\ No newline at end of file