diff --git a/BillingBundle/Controller/BillingController.php b/BillingBundle/Controller/BillingController.php
index 4def5ee..5f4f3db 100644
--- a/BillingBundle/Controller/BillingController.php
+++ b/BillingBundle/Controller/BillingController.php
@@ -6,11 +6,39 @@ use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 
 class BillingController extends AbstractController
 {
-    /**
-     * @Route("/bluesquare/billing-bundle/webhook", name="bluesquare.billing_bundle.webhook")
-    */
-    public function webhook()
+    public function webhookAction()
     {
+        \Stripe\Stripe::setApiKey($this->container->get('stripe_api_key_secret'));
 
+        // You can find your endpoint's secret in your webhook settings
+        $endpoint_secret = $this->container->get('stripe_webhook_key');
+
+        $payload = @file_get_contents('php://input');
+        $sig_header = $_SERVER['HTTP_STRIPE_SIGNATURE'];
+        $event = null;
+
+        try {
+            $event = \Stripe\Webhook::constructEvent($payload, $sig_header, $endpoint_secret);
+
+        } catch(\UnexpectedValueException $e) {
+            // Invalid payload
+            file_put_contents("/tmp/test_stripe", json_encode($e->getMessage()));
+            exit();
+        } catch(\Stripe\Error\SignatureVerification $e) {
+            // Invalid signature
+            file_put_contents("/tmp/test_stripe", json_encode($e->getMessage()));
+            exit();
+        }
+
+        // Handle the checkout.session.completed event
+        if ($event->type == 'checkout.session.completed') {
+            $session = $event->data->object;
+
+            // Fulfill the purchase...
+            file_put_contents("/tmp/test_stripe", json_encode($session));
+            //handle_checkout_session($session);
+        }
+
+        return $this->json("OK", 200);
     }
 }
diff --git a/BillingBundle/Service/BillingSrv.php b/BillingBundle/Service/BillingSrv.php
index e32851f..8bdbabd 100644
--- a/BillingBundle/Service/BillingSrv.php
+++ b/BillingBundle/Service/BillingSrv.php
@@ -2,10 +2,36 @@
 
 namespace Bluesquare\BillingBundle\Service;
 
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
 class BillingSrv
 {
-    public function createPurchase($arr)
-    {
+    private $container;
 
+    public function __construct(ContainerInterface $container)
+    {
+        $this->container = $container;
+    }
+    public function createPurchase($items)
+    {
+        $apiKey = $this->container->getParameter('stripe_api_key_secret');
+
+        \Stripe\Stripe::setApiKey($apiKey);
+
+        return (
+            \Stripe\Checkout\Session::create([
+                'payment_method_types' => ['card'],
+                'line_items' => [[
+                    'name' => 'T-shirt',
+                    'description' => 'Comfortable cotton t-shirt',
+                    'images' => ['https://example.com/t-shirt.png'],
+                    'amount' => 500,
+                    'currency' => 'eur',
+                    'quantity' => 1,
+                ]],
+                'success_url' => 'http://18d049f8.ngrok.io/redirected',
+                'cancel_url' => 'http://18d049f8.ngrok.io/cancel',
+            ])
+        );
     }
 }