public async Task <Result> Handle(UpdateBusinessCommand command, CancellationToken cancellationToken)
=> await _repository.FetchUserAggregate(command.OwnerEmail)
.FailureIf("User not found.")
.Ensure(user => user.GetBusiness(command.Id) != null, "Business not found.")
.AndThen(_ => _mapper.Map <Business>(command))
.Validate(_businessValidator)
.Finally(updatedBusiness => _repository.UpdateEntity(command.Id, updatedBusiness));
public async Task <Result> Handle(UpdateUserInfoCommand command, CancellationToken cancellationToken)
=> await _repository.FetchUserAggregate(command.Id)
.FailureIf("User not found.")
.AndThen(user => user.Update(command.Name, command.Email, Convert(command)))
.Validate(_validator)
.Finally(updatedUser => _repository.UpdateEntity(updatedUser.Id, updatedUser));