public override async Task <UpdateLineNameCommand> HandleAsync(UpdateLineNameCommand command, CancellationToken cancellationToken = new CancellationToken()) { using (var uow = _contextFactory.Create()) { var repository = new ShippingLineRepositoryAsync(uow); var line = await repository.GetAsync(command.LineId); if (line == null) { throw new NotFoundException($"Could not find a line with the Id: {command.LineId}"); } line.LineName = command.LineName; await repository.UpdateAsync(line); await _commandProcessor.PostAsync(new LineNameUpdatedEvent(line.Id, line.LineName, line.Version)); } return(await base.HandleAsync(command, cancellationToken)); }