public Result CreateNewCart(UserDto userDto) { try { if (userDto?.Email == null) { throw new Exception("Validation exception: User doesn't exist"); } CartRepo.CreateNewCart(userDto.Email); return(new Result() { ResultCode = EnumResultCode.OK }); } catch (Exception ex) { return(new Result() { ResultCode = EnumResultCode.Error, Details = ex.Message }); } }