Question

我在尝试从内容丰富的webhook中获取http响应时遇到问题。我一直收到这个错误：

“WebHook请求包含无效的JSON：'没有MediaTypeFormatter可用于从媒体类型为'application / vnd.contentful.management.v1 + json'的内容中读取'JToken'类型的对象”

这是我的功能代码：

#r "Newtonsoft.Json"


using System;
using System.Net;
using System.IO;
using System.Collections.Generic;
using Newtonsoft.Json;
using System.Net.Http.Headers;
using System.Net.Http.Formatting;
using System.Web.Http;


public static async Task<object> Run(HttpRequestMessage req, TraceWriter log)
{
  @json(body('formdataAction'));
  log.Info($"wjat");

  //    req.Headers.ContentType = new MediaTypeHeaderValue("application/json");

  log.Info($"Webhook was triggered!");
  string jsonContent = await req.Content.ReadAsStringAsync();
  // BodyParser.Of(BodyParser.TolerantJson.class);
  dynamic data = JsonConvert.DeserializeObject(jsonContent);

  log.Info(data.sys);

  if (data.first == null || data.last == null)
  {
    return req.CreateResponse(HttpStatusCode.BadRequest, new
    {
      error = "Please pass first/last properties in the input object"
    });
  }

  return req.CreateResponse(HttpStatusCode.OK, new
  {
      greeting = $"Hello {data.first} {data.last}!"
  });
}

Answer 1

问题是ReadAsAsync正在尝试使用默认的媒体格式化程序，默认情况下只允许application/json。

你当然可以注册使用json格式化程序来获取内容丰富的内容类型，但我建议使用NewtonSoft.Json并做类似的事情。

string json = await req.Content.ReadAsStringAsync();
dynamic data = JsonConvert.DeserializeObject(json);

这是一个完整的功能，可与Contentful：

中的webhook一起使用

#r "Newtonsoft.Json"

using System.Net;
using Newtonsoft.Json;

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, 
 TraceWriter log)
{
    log.Info("C# HTTP trigger function processed a request.");

    // Get request body
    string json = await req.Content.ReadAsStringAsync();
    log.Info($"Read json: {json}");
     dynamic data = JsonConvert.DeserializeObject(json);

    string deserialized = data?.ToString();

    return req.CreateResponse(HttpStatusCode.OK, deserialized);
}

C＃中的Azure功能内容Webhook错误

1 个答案: