first upload all files

Modules/Payment/Responses/MercadoPagoResponse.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Modules\Payment\Responses;
+
+use Modules\Order\Entities\Order;
+use Modules\Payment\ShouldRedirect;
+use Modules\Payment\GatewayResponse;
+use Modules\Payment\HasTransactionReference;
+
+class MercadoPagoResponse extends GatewayResponse implements ShouldRedirect, HasTransactionReference
+{
+    private $order;
+    private $clientResponse;
+
+    public function __construct(Order $order, object $clientResponse)
+    {
+        $this->order = $order;
+        $this->clientResponse = $clientResponse;
+    }
+
+    public function getOrderId()
+    {
+        return $this->order->id;
+    }
+
+    public function getRedirectUrl()
+    {
+        return $this->clientResponse->back_urls->success;
+    }
+
+    public function getTransactionReference()
+    {
+        return $this->clientResponse->external_reference;
+    }
+
+    public function toArray()
+    {
+        return [
+            'publicKey' => setting('mercadopago_public_key'),
+            'currentLocale' => locale(),
+            'preferenceId' => $this->clientResponse->id,
+        ];
+    }
+}