C# 无法在C代码中显示API响应消息

我将从下面的请求生成Way Bill API。下面请求的响应在“Postmen”中显示良好，但同时，当我从C代码执行下面的请求时，它会显示一条错误消息，“远程服务器返回一个错误：（400）错误请求。”

我想知道如何用C代码显示邮递员错误消息

网址：-

https://ewbbackend-preprodpub-http.internal.cleartax.co/gst/v0.1/taxable_entities/1c74ddd2-6383-4f4b-a7a5-007ddd08f9ea/ewaybill/GLD23985?activity_type=GENERATE_EWB

标题：-

Content-type : application/json
X-Cleartax-Auth-Token : b1f57327-96db-4829-97cf-2f3a59a3a548
taxable_entity_id : b1f57327-96db-4829-97cf-2f3a59a3a548 

正文：-

{
  "id": "GLD23985",
  "transaction_date": "26/10/2020",
  "source": "USER",
  "document_number": "BQ/20/0251",
  "type": "OUTWARD",
  "transport_mode": "ROAD",
  "dispatch_from_state": "HARYANA",
  "sub_supply": "Supply",
  "distance": "90",
  "vehicle_number": "TN32N1049",
  "document_type": "Tax Invoice",
  "seller": {
    "address1": "142/1,Trunk Road",
    "address2": "Perumugai",
    "city": "Via Vellore",
    "gstin": "29AEKPV7203E1Z9",
    "name": "K.H Exports India Private Limited",
    "state": "HARYANA",
    "zip_code": ""
  },
  "receiver": {
    "address1": "4/74, VOC Street, Seenerkuppam Village, ",
    "address2": "Poonamalle, Chennai 600 056",
    "city": "",
    "gstin": "33AAACR1714R1ZA",
    "name": "KH EXPORTS INDIA PVT.LTD. (LGD)",
    "state": "TAMIL NADU",
    "zip_code": "600003"
  },
  "consignee": {
    "city": "",
    "state": "TAMIL NADU",
    "zip_code": "600003"
  },
  "line_items": [
    {
      "cess_rate": "0",
      "cess_val": "0",
      "cgst_rate": "0",
      "cgst_val": "0",
      "description": "STYLE;91311 COLOUR;SVFD7 BELT & PA",
      "gst_code": "4203",
      "igst_rate": "28.00",
      "igst_val": "16800.000000",
      "item_code": "STYLE;91311 COLOUR;SVFD7 BELT & PA",
      "quantity": "3.00",
      "serial_number": "1",
      "sgst_rate": "0",
      "sgst_val": "0",
      "taxable_val": "600.0000",
      "unit_of_measurement": "NUMBERS"
    },
    {
      "cess_rate": "0",
      "cess_val": "0",
      "cgst_rate": "0",
      "cgst_val": "0",
      "description": "STYLE;91307 COLOUR;ABFD2 BELT & PA",
      "gst_code": "4203",
      "igst_rate": "28.00",
      "igst_val": "16800.000000",
      "item_code": "STYLE;91307 COLOUR;ABFD2 BELT & PA",
      "quantity": "3.00",
      "serial_number": "2",
      "sgst_rate": "0",
      "sgst_val": "0",
      "taxable_val": "600.0000",
      "unit_of_measurement": "NUMBERS"
    }
  ]
}

答复：-

{
    "errors": {
        "err_1": {
            "code": "BAD_REQUEST_ATTR",
            "message": "Pincode should have 6 digits.",
            "error_group_code": 0,
            "error_id": 0,
            "severity": "ERROR"
        }
    },
    "error_sources": {
        "seller": {
            "zip_code": {
                "error_refs": [
                    "err_1"
                ]
            }
        }
    }
}

C#代码：-

---

嗨，我的朋友，你可以用这个代码来处理你的回复并得到你的答案。 前面的示例从控制器操作返回HttpResponseMessage消息，但您也可以使用HttpResponseException返回HttpError。这允许您在正常的成功案例中返回强类型模型，而在出现错误时仍然返回HttpError

    public Product GetProduct(int id)
{
    Product item = repository.Get(id);
    if (item == null)
    {
        var message = string.Format("Product with id = {0} not found", id);
        throw new HttpResponseException(
            Request.CreateErrorResponse(HttpStatusCode.NotFound, message));
    }
    else
    {
        return item;
    }
}

---

你收到控制器中的数据了吗？谢谢你的回复，实际上我正在从政府获取api，只是我正在执行这个api，所以请告诉我如何在C代码中控制这个错误

    public Product GetProduct(int id)
{
    Product item = repository.Get(id);
    if (item == null)
    {
        var message = string.Format("Product with id = {0} not found", id);
        throw new HttpResponseException(
            Request.CreateErrorResponse(HttpStatusCode.NotFound, message));
    }
    else
    {
        return item;
    }
}