连接到网络的API使用C＃ [英] connecting to web api using c#

问题描述

我想用下面的code到silverpop虽然我试图在获得的400状态code到autheniicate。因为我不知道还有什么尝试任何建议？我可以看到通话外出使用招，但我已经用尽了想法。 非常感谢

服务器返回以下错误消息：

code段

  VAR httpWReq =（HttpWebRequest的）WebRequest.Create（https://api5.silverpop.com/oauth/token）;
        VAR POSTDATA = string.Format("&grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}", config.ClientId，config.ClientSecret，config.RefreshToken）;

                    //也可以尝试这个字符串，但我得到了同样的答复
        // VAR POSTDATA = string.Format("?grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}", config.ClientId，config.ClientSecret，config.RefreshToken）;

        VAR编码=新ASCIIEncoding（）;
        VAR数据= encoding.GetBytes（POSTDATA）;
        httpWReq.Method =POST;
        httpWReq.Co​​ntentType =X WWW的形式，urlen codeD;
        httpWReq.Co​​ntentLength = data.Length;

        使用（VAR流= httpWReq.GetRequestStream（））
        {
            stream.Write（数据，0，data.Length）;
        }

        变种响应=（HttpWebResponse）httpWReq.GetResponse（）;

        VAR的结果=新的StreamReader（response.GetResponseStream（））ReadToEnd（）。
 

从服务器响应

 远程服务器返回错误：（400）错误的请求。
 

解决方案

这似乎工作：

  VAR httpWReq =（HttpWebRequest的）WebRequest.Create（https://api5.silverpop.com/oauth/token+ string.Format("?grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}",客户端ID，clientSecret，refreshToken））;
        VAR POSTDATA =;

        VAR编码=新ASCIIEncoding（）;
        VAR数据= encoding.GetBytes（POSTDATA）;
        httpWReq.Method =POST;
        httpWReq.Co​​ntentType =X WWW的形式，urlen codeD;
        httpWReq.Co​​ntentLength = data.Length;

        使用（VAR流= httpWReq.GetRequestStream（））
        {
            stream.Write（数据，0，data.Length）;
        }

        变种响应=（HttpWebResponse）httpWReq.GetResponse（）;

        VAR的结果=新的StreamReader（response.GetResponseStream（））ReadToEnd（）。
 

I'm trying to autheniicate using the code below to silverpop although I'm getting a status code of 400 when attempting. Any suggestions as I'm not sure what else to try?! I can see the call going out using Fiddler but I've ran out of ideas. Many thanks

The server is returning the following error message:

Code snippet

        var httpWReq = (HttpWebRequest)WebRequest.Create("https://api5.silverpop.com/oauth/token");
        var postData = string.Format("&grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}", config.ClientId, config.ClientSecret, config.RefreshToken);

                    // Also try this string but I get the same response
        //var postData = string.Format("?grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}", config.ClientId, config.ClientSecret, config.RefreshToken);

        var encoding = new ASCIIEncoding();
        var data = encoding.GetBytes(postData);
        httpWReq.Method = "POST";
        httpWReq.ContentType = "x-www-form-urlencoded";
        httpWReq.ContentLength = data.Length;

        using (var stream = httpWReq.GetRequestStream())
        {
            stream.Write(data, 0, data.Length);
        }

        var response = (HttpWebResponse)httpWReq.GetResponse();

        var result = new StreamReader(response.GetResponseStream()).ReadToEnd();

Response from server

The remote server returned an error: (400) Bad Request.

解决方案

This seems to work:

        var httpWReq = (HttpWebRequest)WebRequest.Create("https://api5.silverpop.com/oauth/token" + string.Format("?grant_type=refresh_token&client_id={0}&client_secret={1}&refresh_token={2}", clientId, clientSecret, refreshToken));
        var postData = "";

        var encoding = new ASCIIEncoding();
        var data = encoding.GetBytes(postData);
        httpWReq.Method = "POST";
        httpWReq.ContentType = "x-www-form-urlencoded";
        httpWReq.ContentLength = data.Length;

        using (var stream = httpWReq.GetRequestStream())
        {
            stream.Write(data, 0, data.Length);
        }

        var response = (HttpWebResponse)httpWReq.GetResponse();

        var result = new StreamReader(response.GetResponseStream()).ReadToEnd();

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