public async Task <Result> DeleteUser(EntityDto <long> input) { var user = await _userManager.FindByIdAsync(input.Id.ToString()); if (user != null) { await _studentService.DeleteStudentByUserId(new EntityDto <long> { Id = user.Id }); await _teacherService.DeleteTeacherByUserId(new EntityDto <long> { Id = user.Id }); var result = await _userManager.DeleteAsync(user); if (result.Succeeded) { return(Result.Success()); } var errors = new List <ErrorResult>(); foreach (var error in result.Errors) { errors.Add(new ErrorResult(error.Description)); } return(Result.Failed(errors)); } return(ErrorNotFoundUser(input.Id)); }