Combine route path from the controller in a method ASP.NET WEB API

I have an AppointmentController with a Route attribute and an HTTPGet method inside of it

[ApiController, Authorize]
[Route("api/[controller]")]
public class AppointmentController : ControllerBase 
{

    [HttpGet("/user/{userId:guid}")]
    public async Task<ActionResult<ApiResponse<IEnumerable<Appointment>>>> GetUserAppointments([FromRoute] Guid userId) {}

}

I want the route to be : "/api/appointment/user/:userId"

Instead I get "/user/:userId" in the Swagger UI

What is the problem here?

>Solution :

Just remove the forward slash / before your route "user/{userId:guid}"

[ApiController, Authorize]
[Route("api/[controller]")]
public class AppointmentController : ControllerBase 
{

    [HttpGet("user/{userId:guid}")]
    public async Task<ActionResult<ApiResponse<IEnumerable<Appointment>>>> GetUserAppointments([FromRoute] Guid userId) {}

}