Comienzo de api de canales de venta

backend/app/Services/UuidService.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Services;
+
+use Illuminate\Support\ServiceProvider;
+
+class UuidService extends ServiceProvider {
+    public function is_valid(string $uuid) {
+        $regex = '/^[a-f\d]{8}(-[a-f\d]{4}){4}[a-f\d]{8}$/i';
+        return preg_match($regex, $uuid) === 1;
+    }
+}