c# - 如何从azure函数c#返回多个json对象？

Question

我已经检查了重复的问题并尝试了相同的代码，但不起作用。

我有两个 json 序列化对象，想要返回这两个输出。

#r "Newtonsoft.Json"

using System.Net;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Primitives;
using Newtonsoft.Json;
using System.Text;

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

    string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
    dynamic data = JsonConvert.DeserializeObject(requestBody);

    var httpResult = data.a;
    var sqlData = data.b;

    var matchedList = new List<dynamic>();

        var unmatchedList = new List<dynamic>();


            foreach (var itemHttp in httpResult)
            {
                foreach (var itemSql in sqlData)
                {
                    if (itemHttp.name == itemSql.tablename)
                    {
                        matchedList.Add(itemHttp);
                    }
                    else{

                        unmatchedList.Add(itemHttp.name);
                    }
                }
            }

    var jsonToReturn1 = JsonConvert.SerializeObject(matchedList);

    var jsonToReturn2 = JsonConvert.SerializeObject(unmatchedList);


     return new HttpResponseMessage(HttpStatusCode.OK) {
        Content = new StringContent( new { a= new{jsonToReturn1}, b= new {jsonToReturn2}}, Encoding.UTF8, "application/json")
    };


}

用于函数的输入 -

{
  "a": [
    {
      "id": "1",
      "name": "aaa"
    },
    {
      "id": "2",
      "name": "bbb"
    },
    {
      "id": "3",
      "name": "ccc"
    },
    {
      "id": "4",
      "name": "ddd"
    }
  ],
  "b": [
    {
      "id": "111",
      "tablename": "aaa"
    },
    {
      "id": "222",
      "tablename": "bbb"
    }
  ]
}

Answer 1

有两种方法:

第一个(更可取)

public static async Task<HttpResponseMessage> Run(HttpRequest req, ILogger log)
{
    dynamic data = await req.Content.ReadAsAsync<object>();

    // ..

    var result = new
    {
        a = matchedList,
        b = unmatchedList
    };

    /* The mediaType-param with value 'JsonMediaTypeFormatter.DefaultMediaType' can be omitted. */
    return req.CreateResponse(HttpStatusCode.OK, result, JsonMediaTypeFormatter.DefaultMediaType);
  } 

第二个

public static async Task<HttpResponseMessage> Run(HttpRequest req, ILogger log)
{
    dynamic data = await req.Content.ReadAsAsync<object>();

    // ..

    var payload = JsonConvert.SerializeObject(new
    {
        a = matchedList,
        b = unmatchedList
    });

    var content = new StringContent(payload, Encoding.UTF8, "application/json");

    return new HttpResponseMessage(HttpStatusCode.OK) { Content = content };
}