frontend & backend update

app/Http/Resources/PaymentCardResource.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class PaymentCardResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'data' => [
+                'id'         => (string)$this['id'],
+                'type'       => 'payment_method',
+                'attributes' => [
+                    'provider'   => 'stripe',
+                    'card_id'    => $this['id'],
+                    'brand'      => strtolower($this['card']['brand']),
+                    'last4'      => $this['card']['last4'],
+                    'exp_month'  => $this['card']['exp_month'],
+                    'exp_year'   => $this['card']['exp_year'],
+                    'created_at' => format_date($this['created_at'], '%d. %B. %Y'),
+                    'status'     => 'active',
+                    'default'    => 0,
+                ]
+            ]
+        ];
+    }
+}