自定义HttpClient请求头

如何向HttpClient请求添加自定义报头?我使用PostAsJsonAsync方法来发布JSON。我需要添加的自定义标头是

"X-Version: 1"

这是我目前所做的:

using (var client = new HttpClient()) {
    client.BaseAddress = new Uri("https://api.clickatell.com/");
    client.DefaultRequestHeaders.Accept.Clear();
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", "xxxxxxxxxxxxxxxxxxxx");
    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    var response = client.PostAsJsonAsync("rest/message", svm).Result;
}

当前回答

var request = new HttpRequestMessage {
    RequestUri = new Uri("[your request url string]"),
    Method = HttpMethod.Post,
    Headers = {
        { "X-Version", "1" } // HERE IS HOW TO ADD HEADERS,
        { HttpRequestHeader.Authorization.ToString(), "[your authorization token]" },
        { HttpRequestHeader.ContentType.ToString(), "multipart/mixed" },//use this content type if you want to send more than one content type
    },
    Content = new MultipartContent { // Just example of request sending multipart request
        new ObjectContent<[YOUR JSON OBJECT TYPE]>(
            new [YOUR JSON OBJECT TYPE INSTANCE](...){...}, 
            new JsonMediaTypeFormatter(), 
            "application/json"), // this will add 'Content-Type' header for the first part of request
        new ByteArrayContent([BINARY DATA]) {
            Headers = { // this will add headers for the second part of request
                { "Content-Type", "application/Executable" },
                { "Content-Disposition", "form-data; filename=\"test.pdf\"" },
            },
        },
    },
};

2017-05-04 10:37:11

其他回答

我在HttpClient头文件中添加了x-api-version，如下所示:

var client = new HttpClient(httpClientHandler)
{
    BaseAddress = new Uri(callingUrl)
};
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("x-api-version", v2);

2021-12-30 09:52:00

你也可以使用HttpClient。PostAsync方法:

using (HttpClient http_client = new HttpClient())
{
   StringContent string_content = new StringContent(JsonSerializer.Serialize("{\"field\":\"field_value\"}"));
   string_content.Headers.Add("X-Version","1");
   using (HttpResponseMessage response = await http_client.PostAsync("http://127.0.0.1/apiMethodName", string_content))
   {
      if (response.IsSuccessStatusCode)
      {
         Console.WriteLine($"Response status code: {response.StatusCode}");
      }
      else
      {
         Console.WriteLine($"Error status code: {response.StatusCode}");
      }
   }
}

2022-08-26 07:56:37

以下是基于Anubis的回答(这是一个更好的方法，因为它不修改每个请求的头)，但更相当于原始问题中的代码:

using Newtonsoft.Json;
...

var client = new HttpClient();
var httpRequestMessage = new HttpRequestMessage
    {
        Method = HttpMethod.Post,
        RequestUri = new Uri("https://api.clickatell.com/rest/message"),
        Headers = { 
            { HttpRequestHeader.Authorization.ToString(), "Bearer xxxxxxxxxxxxxxxxxxx" },
            { HttpRequestHeader.Accept.ToString(), "application/json" },
            { "X-Version", "1" }
        },
        Content = new StringContent(JsonConvert.SerializeObject(svm))
    };

var response = client.SendAsync(httpRequestMessage).Result;

2018-11-23 18:35:30

我已经找到了问题的答案。

client.DefaultRequestHeaders.Add("X-Version","1");

这将为您的请求添加一个自定义标头

2016-03-10 07:19:20

var request = new HttpRequestMessage {
    RequestUri = new Uri("[your request url string]"),
    Method = HttpMethod.Post,
    Headers = {
        { "X-Version", "1" } // HERE IS HOW TO ADD HEADERS,
        { HttpRequestHeader.Authorization.ToString(), "[your authorization token]" },
        { HttpRequestHeader.ContentType.ToString(), "multipart/mixed" },//use this content type if you want to send more than one content type
    },
    Content = new MultipartContent { // Just example of request sending multipart request
        new ObjectContent<[YOUR JSON OBJECT TYPE]>(
            new [YOUR JSON OBJECT TYPE INSTANCE](...){...}, 
            new JsonMediaTypeFormatter(), 
            "application/json"), // this will add 'Content-Type' header for the first part of request
        new ByteArrayContent([BINARY DATA]) {
            Headers = { // this will add headers for the second part of request
                { "Content-Type", "application/Executable" },
                { "Content-Disposition", "form-data; filename=\"test.pdf\"" },
            },
        },
    },
};

2017-05-04 10:37:11

自定义HttpClient请求头

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