public async Task <IActionResult> PostAsync([FromBody] CreateClient.Request request)
        {
            Client entity = request;

            if (!(entity is null))
            {
                _db.Client.Add(entity);
                await _db.SaveChangesAsync();
            }

            return(Created(string.Empty, entity.Id.ToString()));
        }
 public async Task <ActionResult <CreateClient.Response> > Create([FromBody] CreateClient.Request request)
 => await _mediator.Send(request);