public async Task <Unit> Handle(UpdateTaskListRequest request, CancellationToken cancellationToken) { var entity = _mapper.Map <Domain.Entities.TaskList>(request.TaskList); if (!_context.TaskLists.Local.Any(x => x.Id == request.Id)) { _context.Update(entity); } await _context.SaveChangesAsync(cancellationToken); return(Unit.Value); }