first commit

laravel/app/Contracts/WbClientInterface.php

@@ -0,0 +1,17 @@
+<?php
+
+
+declare(strict_types=1);
+
+namespace App\Contracts;
+
+use App\DTO\WbRequestDTO;
+use App\Exceptions\WbServiceException;
+
+interface WbClientInterface
+{
+    /**
+     * @throws WbServiceException
+     */
+    public function fetch(WbRequestDTO $requestDTO): array;
+}