first upload all files

Modules/Payment/Responses/PaystackResponse.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Modules\Payment\Responses;
+
+use Modules\Order\Entities\Order;
+use Modules\Payment\ShouldRedirect;
+use Modules\Payment\GatewayResponse;
+use Modules\Payment\HasTransactionReference;
+
+class PaystackResponse extends GatewayResponse implements HasTransactionReference
+{
+    private $order;
+
+    public function __construct(Order $order)
+    {
+        $this->order = $order;
+    }
+
+    public function getOrderId()
+    {
+        return $this->order->id;
+    }
+
+    public function getTransactionReference()
+    {
+        return request('reference');
+    }
+
+    public function toArray()
+    {
+        return [
+            'key' => setting('paystack_public_key'),
+            'email' => $this->order->customer_email,
+            'amount' => $this->order->total->convertToCurrentCurrency()->subunit(),
+            'ref' => 'ref' . time(),
+            'currency' => currency(),
+            'order_id' => $this->order->id,
+        ];
+    }
+}