c# – RestSharp在POST上将内容类型默认为application / x-www-f

发布时间：2020-12-15 08:34:25 所属栏目：百科来源：网络整理

导读：RestSharp似乎不允许我覆盖发布请求的Content-Type.我按照 here发现的指示无效.我还尝试通过request.AddHeaders(“content-type”,“application / json”)手动将标题内容类型设置为application / json; 请求执行的示例： private IRestResponse ExecuteRequ

RestSharp似乎不允许我覆盖发布请求的Content-Type.我按照 here发现的指示无效.我还尝试通过request.AddHeaders(“content-type”,“application / json”)手动将标题内容类型设置为application / json;

请求执行的示例：

private IRestResponse ExecuteRequest<T>(string resource,Method method,T model)
{
    var client = CreateRestClient();
    var request = new RestRequest(resource,method) 
    { 
        RequestFormat = DataFormat.Json 
    };
    var json = JsonConvert.SerializeObject(model);

    request.AddHeader("Accept","application/json");
    request.AddHeader("User-Agent","Fiddler");
    request.Parameters.Clear();
    request.AddParameter("auth_token",_apiKey);
    request.AddParameter("application/json",json,ParameteType.RequestBody);

    return client.Execute(request); 
}

响应错误消息：

{
  "error": {
  "code": 400,"message": "The request requires a properly encoded body with the 'content-type' header set to '['application/json']","type": "Bad Request" }
}

Fiddler请求原始数据：

POST  **omitted** HTTP/1.1
Accept: application/json,application/xml,text/json,text/x-json,text/javascript,text/xml
User-Agent: RestSharp/105.0.1.0
Content-Type: application/x-www-form-urlencoded
Host: **omitted**
Content-Length: 51
Accept-Encoding: gzip,deflate
Connection: Keep-Alive

如您所见,请求Content-Type仍然是application / x-www-form-urlencoded.有任何想法吗？ (提前致谢)

解决方法

看来这是对RestSharp如何解释发布请求参数的误解.来自John Sheehan在谷歌小组的帖子：

If it’s a GET request,you can’t have a request body and AddParameter
adds values to the URL querystring. If it’s a POST you can’t include a
POST parameter and a serialized request body since they occupy the
same space. You could do a multipart POST body but this is not very
common. Unfortunately if you’re making a POST the only way to set the
URL querystring value is through either string concatenation or
UrlSegments:

var key = "12345";
var request = new RestRequest("api?key=" + key);
// or
var request = new RestRequest("api?key={key});
request.AddUrlSegment("key","12345");

我修改的现在运行的Execute请求方法如下所示：

private IRestResponse ExecuteRequestAsPost<T>(T model,string resource,Method method)
{
    resource += "?auth_token={token}";
    var client = CreateRestClient();
    var request = new RestRequest(resource,method) { RequestFormat = DataFormat.Json };
    var json = JsonConvert.SerializeObject(model);
    request.AddHeader("User-Agent","Fiddler");

    request.AddUrlSegment("token",ParameterType.RequestBody);

    return client.Execute(request);
}

（编辑：李大同）

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