try

Webshop.Api/Controllers/Customer/ProfileController.cs

@@ -0,0 +1,18 @@
+// Auto-generiert von CreateWebshopFiles.ps1
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Authorization;
+
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Webshop.Api.Controllers.Customer
+{
+    [ApiController]
+    [Route("api/v1/customer/[controller]")]
+    [Authorize(Roles = "Customer")]
+    public class ProfileController : ControllerBase
+    {
+
+    }
+}