public ActionResult ChangeAmount(CommodityChangeAmount model) { try { _commodityService.ChangedAmount(model); return(Ok(Response.WriteAsync(JsonConvert.SerializeObject(true, new JsonSerializerSettings { Formatting = Formatting.Indented })))); } catch (Exception ex) { return(BadRequest(Response.WriteAsync(JsonConvert.SerializeObject(ex, new JsonSerializerSettings { Formatting = Formatting.Indented })))); } }