private async Task <List <ErrorsTO> > RequiredProcessId(Guid?processId) { var errors = new List <ErrorsTO>(); if (processId == null) { errors.Add(new ErrorsTO { Field = "ProcessId", Validation = Messaging.RequiredProcessId }); } else if ((await _processRepository.GetByIdAsync(processId.Value)) == null) { errors.Add(new ErrorsTO { Field = "ProcessId", Validation = Messaging.InvalidProcessId }); } return(errors); }