frontend/backend update

app/Http/Resources/UserSubscription.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class UserSubscription extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'data' => [
+                'id'         => $this->id,
+                'type'       => 'subscription',
+                'attributes' => [
+                    'name'      => $this->name,
+                    'slug'      => $this->slug,
+                    'starts_at' => format_date($this->starts_at, '%d. %B. %Y'),
+                    'ends_at'   => format_date($this->ends_at, '%d. %B. %Y'),
+                ]
+            ]
+        ];
+    }
+}