public async Task <IActionResult> AddReservation([FromBody] AddReservationViewModel newReservation)
        {
            if (!ModelState.IsValid)
            {
                var modelErrors = new List <string>();
                foreach (var modelState in ModelState.Values)
                {
                    foreach (var modelError in modelState.Errors)
                    {
                        modelErrors.Add(modelError.ErrorMessage);
                    }
                }
                return(BadRequest(new AddingResult {
                    Successful = false, Errors = modelErrors
                }));
            }

            string userId = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
            var    user   = await _userManager.FindByIdAsync(userId);

            var feedback = await _reservationsService
                           .AddServiceReservationAsync(newReservation, userId);

            if (feedback.Successful == false)
            {
                return(BadRequest("Could not add service because: " + feedback.Message));
            }
            else
            {
                return(Ok(feedback.Message));
            }
            return(BadRequest("Could not add service because: " + feedback.Message));
        }