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TL;DR -- 如何将 JSON 字符串发送到带有 auth 标头的 REST 主机?我尝试了 3 种不同的方法,找到了一种适用于匿名类型的方法。为什么我不能使用匿名类型?我需要设置一个名为“Group-Name”的变量,连字符不是有效的 C# 标识符。

背景

我需要 POST JSON,但无法正确获取正文和内容类型

功能 #1 - 适用于匿名类型

内容类型和数据是正确的,但我不想使用匿名类型。我想用一个字符串

  static void PostData(string restURLBase, string RESTUrl, string AuthToken, string postBody)
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(restURLBase);
        client.DefaultRequestHeaders.Add("Auth-Token", AuthToken);
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        // StringContent content = new StringContent(postBody);

        var test1 = "data1";
        var test2 = "data2";
        var test3 = "data3";

        var response = client.PostAsJsonAsync(RESTUrl, new { test1, test2, test3}).Result;  // Blocking call!
        if (!response.IsSuccessStatusCode)
        {
            Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            return;
        } 
    }

输出#1

使用 AnonymousTypes + PostAsJsonAsync 时内容类型和数据是正确的,但我不想使用匿名类型。

POST https://api.dynect.net/REST/Zone/ABCqqqqqqqqqqqqYYYYYtes3ss.com HTTP/1.1
Auth-Token: --- REDACTED -----
Accept: application/json
Content-Type: application/json; charset=utf-8
Host: api.dynect.net
Content-Length: 49
Expect: 100-continue

{"test1":"data1","test2":"data2","test3":"data3"}

功能 #2 - 没有按预期工作

获取一个字符串并将其放入 StringContent 对象中。这具有更改内容类型的副作用。

  static void PostData(string restURLBase, string RESTUrl, string AuthToken, string postBody)
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(restURLBase);
        client.DefaultRequestHeaders.Add("Auth-Token", AuthToken);
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        StringContent content = new StringContent(postBody);

        var response = client.PostAsync(RESTUrl, content).Result;  // Blocking call!
        if (!response.IsSuccessStatusCode)
        {
            Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            return;
        } 
    }

输出#2

使用 StringContent + PostAsync 时内容类型错误

POST https://api.dynect.net/REST/Zone/ABCqqqqqqqqqqqqYYYYYtes3ss.com HTTP/1.1
Auth-Token: ---- REDACTED -------
Accept: application/json                      // CORRECT
Content-Type: text/plain; charset=utf-8       // WRONG!!!
Host: api.dynect.net
Content-Length: 100
Expect: 100-continue

{"rdata" : ["rname" : "dynect.nfp.com", "zone" : "ABCqqqqqqqqqqqqYYYYYtes3ss.com"], "ttl" : "43200"}
        // ^^ THIS IS CORRECT

功能 #3 - 无法按预期工作

由于我知道PostAsJsonAsync正确设置了 contentType,所以让我们使用该方法。(不起作用)

    static void PostData(string restURLBase, string RESTUrl, string AuthToken, string postBody)
    {
        HttpClient client = new HttpClient();
        client.BaseAddress = new Uri(restURLBase);
        client.DefaultRequestHeaders.Add("Auth-Token", AuthToken);
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        StringContent content = new StringContent(postBody);

        var response = client.PostAsJsonAsync(RESTUrl, content).Result;  // Blocking call!
        if (!response.IsSuccessStatusCode)
        {
            Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            return;
        } 
    }

输出#3

内容类型正确,使用 StringContent + PostAsJsonAsync 时 POST 正文错误

POST https://api.dynect.net/REST/Zone/ABCqqqqqqqqqqqqYYYYYtes3ss.com HTTP/1.1
Auth-Token: -- REDACTED ---
Accept: application/json
Content-Type: application/json; charset=utf-8
Host: api.dynect.net
Content-Length: 74
Expect: 100-continue

{"Headers":[{"Key":"Content-Type","Value":["text/plain; charset=utf-8"]}]}

问题

我要做的就是将 JSON 作为字符串或在运行时定义的动态对象发送到服务器,HTTP 内容类型正确,并带有特殊的“Auth-Token”标头。

任何示例,如果不使用 WebAPI,例如 servicestack 或其他任何东西,都很酷。

4

2 回答 2

6
/// <summary>
    /// Creates a new instance of the <see cref="T:System.Net.Http.StringContent"/> class.
    /// </summary>
    /// <param name="content">The content used to initialize the <see cref="T:System.Net.Http.StringContent"/>.</param><param name="encoding">The encoding to use for the content.</param><param name="mediaType">The media type to use for the content.</param>
    [__DynamicallyInvokable]
    public StringContent(string content, Encoding encoding, string mediaType)
      : base(StringContent.GetContentByteArray(content, encoding))
    {
      this.Headers.ContentType = new MediaTypeHeaderValue(mediaType == null ? "text/plain" : mediaType)
      {
        CharSet = encoding == null ? HttpContent.DefaultStringEncoding.WebName : encoding.WebName
      };
    }

它是 StringContent 的构造函数。看起来您应该指定适当的 Encoding 和 mediaType

于 2014-01-11T22:30:34.993 回答
2

您不能直接设置 HttpContent 的实例,因为它是一个抽象类。您需要根据需要使用其中一个子类。很可能是 StringContent,它允许您在构造函数中设置响应的字符串值、编码和媒体类型:http: //msdn.microsoft.com/en-us/library/system.net.http.stringcontent。 aspx

如何为我的 HttpClient PostAsync 第二个参数设置 HttpContent

于 2014-01-11T18:22:50.687 回答