developped own webhook controller for mailjet synch

web/modules/custom/materio_mailjet/materio_mailjet.info.yml

@@ -0,0 +1,8 @@
+name: Materio Mailjet
+description: Add support for MailJet Webhooks.
+package: Materio
+type: module
+core_version_requirement: ^8.8 || ^9
+
+dependencies:
+  - mailjet:mailjet

web/modules/custom/materio_mailjet/materio_mailjet.routing.yml

@@ -0,0 +1,7 @@
+materio_mailjet.webhook:
+  path: '/materio_mailjet_webhook'
+  defaults:
+    _controller: 'Drupal\materio_mailjet\Controller\MaterioMailjetWebhookCallbackController::callback'
+    _title: 'Event callback'
+  requirements:
+    _access: 'TRUE'

web/modules/custom/materio_mailjet/src/Controller/MaterioMailjetWebhookCallbackController.php

@@ -0,0 +1,116 @@
+<?php
+
+namespace Drupal\materio_mailjet\Controller;
+
+use Drupal\Core\Controller\ControllerBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\simplenews_mailjet_subscriptions\Entity\SimplenewsMailjetSubscriptionEntity;
+use Drupal\simplenews\Entity\Subscriber;
+use Drupal\simplenews\Subscription\SubscriptionManagerInterface;
+
+/**
+ * Module callback Controller.
+ */
+class MaterioMailjetWebhookCallbackController extends ControllerBase {
+
+  /**
+   * The subscription manager.
+   *
+   * @var \Drupal\simplenews\Subscription\SubscriptionManagerInterface
+   */
+  protected $subscriptionManager;
+
+  /**
+   * Constructs a \Drupal\simplenews\Controller\ConfirmationController object.
+   *
+   * @param \Drupal\simplenews\Subscription\SubscriptionManagerInterface $subscription_manager
+   *   The subscription manager service.
+   */
+  public function __construct(SubscriptionManagerInterface $subscription_manager) {
+    $this->subscriptionManager = $subscription_manager;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('simplenews.subscription_manager')
+    );
+  }
+
+  /**
+   * Callback for uninstall the module.
+   */
+  public function callback() {
+    
+    // No Event sent.
+    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+      print 'No data';
+      // return false;
+    }
+
+    $post = trim(file_get_contents('php://input'));
+
+    $this->getLogger('materio_mailjet')->notice(print_r($post, TRUE));
+
+    $event = json_decode($post);
+
+    // $event = $json_post[0];
+    
+    // No information sent with the Event.
+    if (!is_object($event) && !isset($event)) {
+      $this->getLogger('materio_mailjet')
+        ->error('No Informations sent with the Event.');
+      // return false;
+    }
+
+    switch ($event->event) {
+      case 'unsub':
+        $this->unsub($event);
+        break;
+    };
+
+    return [];
+  }
+
+  private function unsub($event) {
+    // \Drupal::logger('simplenews_mailjet_subscriptions')->info("Unsubscribe webhook triggered");
+    
+    $MjlistID = $event->mj_list_id;
+    $email = $event->email;
+
+    // find corresponding simplenews list from mailjet listID    
+    $newsletter_id = null;
+    $entities = SimplenewsMailjetSubscriptionEntity::loadMultiple();
+    foreach ((array) $entities as $entity) {
+      $listID = (int)$entity->getID();
+      if ($listID === $MjlistID) {
+        $table = $entity->get('mapping_table');
+        if (is_array($table)) {
+          foreach ($table as $category) {
+            $newsletter_id = $category['simplenews_news'];
+            break;
+          }
+        }    
+        break;
+      }
+    }
+
+    // \Drupal::logger('simplenews_mailjet_subscriptions')->info("Unsubscribe webhook triggered for listID: " . $listID . "and email: " . $email . ".");
+
+    // get subscriber entity
+    // Load entities by their property values.
+    $subscribers = \Drupal::entityTypeManager()->getStorage('simplenews_subscriber')->loadByProperties(['mail' => $email]);
+
+    // unsubscribe subscriber from simplenews list
+    if (is_array($subscribers) && count($subscribers) && $newsletter_id) {
+      $subscriber = array_shift($subscribers);
+      if ($subscriber instanceof Subscriber) {
+        // $subscriber->unsubscribe($simplenews_news, 'mailjet');
+        $this->subscriptionManager->unsubscribe($subscriber->getMail(), $newsletter_id, FALSE, 'materio_mailjet');
+      }
+    }
+  }
+
+}