public IActionResult Get()
        {
            try
            {
                var retorno = ItemAppService.Obter();

                if (retorno.Count() > 0)
                {
                    return(Ok(retorno));
                }
                else
                {
                    return(NotFound());
                }
            }
            catch (Exception ex)
            {
                return(BadRequest(ex.Message));
            }
        }