#Step 2 | Create your own Symfony app to display event subscriptions data

#Prerequisites

First of all, you'll need a new Symfony app. To do so, you can follow the Symfony guide and run the $ symfony new display_webhook command.

#Step by step

1. Add the route to the config/routes.yaml file:

app_webhook:
        path: /webhook
        controller: App\Controller\WebhookController::post
    

2. Create the controller in src/Controller/WebhookController.php

<?php
    declare(strict_types=1);
    
    namespace App\Controller;
    
    use Psr\Log\LoggerInterface;
    use Symfony\Component\HttpFoundation\Request;
    use Symfony\Component\HttpFoundation\Response;
    
    class WebhookController
    {
        // Thanks autowiring!
        public function post(Request $request, LoggerInterface $logger): Response
        {
            // First we extract akeneo's headers.
            $timestamp = $request->headers->get('x-akeneo-request-timestamp');
            $signature = $request->headers->get('x-akeneo-request-signature');
    
            // If they are null run away. The request does not come from us!
            if (null === $timestamp || null === $signature) {
    
                return new Response('', Response::HTTP_UNAUTHORIZED);
            }
    
            $body = $request->getContent();
    
            // You should notice that I use a very bad practice here.
            // Put that token into your .env file.
            $secret = '3kz9y947jps0wggoc84ww80000o0ogs0ssc444w008s8kkcgw';
    
            // This is the way we construct our signature.
            $expectedSignature = hash_hmac('sha256', $timestamp . '.' . $body, $secret);
    
            // You must check that the request really comes from us.
            // To do it, we provide you the `x-akeneo-signature` header that you rebuilt before and check.
            if (false === hash_equals($signature, $expectedSignature)) {
    
                return new Response('', Response::HTTP_UNAUTHORIZED);
            }
    
            // Now let's check that the request is fresh.
            if (time() - (int) $timestamp > 300) {
                throw new \Exception('Request is too old (> 5min)');
            }
    
            // And now, do your stuff!
            $logger->debug($body);
    
            // You acknowledge you received the event.
            return new Response();
        }
    }
    

3. Launch your local webserver with $ symfony serve --port=8000.

4. Almost done! Go back to your PIM and configure the connection event subscriptions by replacing the Mockbin URL with your new URL. Then save and test it. Here is mine:

5. Finally, update a product with the API and here is the result:

{
      "events":[
        {
          "action":"product.updated",
          "event_id":"551f7108-3b59-4064-a923-fefb4e707f05",
          "event_date":"2021-01-06T13:37:24+00:00",
          "author":"magento_0000",
          "author_type":"api",
          "pim_source":"http:\/\/localhost:8080",
          "data":
          {
            "resource":
            {
              "identifier":"AKNSTK",
              "enabled":true,
              "family":null,
              "categories":["goodies","stickers"],
              "groups":[],
              "parent":null,
              "values":
              {
                "main_color":[{"locale":null,"scope":null,"data":"purple"}],
                "price":[{"locale":null,"scope":null,"data":[{"amount":"2.00","currency":"EUR"},{"amount":"3.00","currency":"USD"}]}],
                "name":[{"locale":null,"scope":null,"data":"lolololo"}],
                "description":
                [
                  {"locale":"de_DE","scope":"print","data":"Akeneo Sticker"},
                  {"locale":"en_US","scope":"print","data":"Akeneo trololo azing sticker !"},
                  {"locale":"fr_FR","scope":"print","data":"Sticker Akeneo"}
                ]
              },
              "created":"2021-01-04T13:34:33+00:00",
              "updated":"2021-01-06T13:37:24+00:00",
              "associations":
              {
                "PACK":{"products":[],"product_models":[],"groups":[]},
                "UPSELL":{"products":[],"product_models":[],"groups":[]},
                "X_SELL":{"products":[],"product_models":[],"groups":[]},
                "SUBSTITUTION":{"products":[],"product_models":[],"groups":[]}
              },
              "quantified_associations":{}
            }
          }
        }
      ]
    }