public async override Task <CommandResult> ProcessAsync(DeleteQuestion command)
{
var isQuestionPresent = await _reader.ExistsAsync(command.QuestionId);
if (!isQuestionPresent)
{
throw new DomainValidationException(command.Id, "Question doesn't exist", 15);
}
var question = new Question();
await _writer.DeleteAsync(command.QuestionId);
return(new VoidResult(command.Id, true));
}