update

modules/Menu/App/Http/Requests/StoreMenuRequest.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Modules\Menu\App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class StoreMenuRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'key' => ['required', 'string', 'max:255', Rule::unique('nav_menus', 'key')->ignore($this->route('id'))],
+        ];
+    }
+}