public Object GetAllFacturas()
        {
            var data = _facturaService.GetAllFacturas();
            var json = JsonConvert.SerializeObject(data, Formatting.Indented,
                                                   new JsonSerializerSettings()
            {
                ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore
            }
                                                   );

            return(json);
        }