Oauth2 Yahoo Gemini API

Question

我无法通过我的C＃控制台（桌面）应用程序调用Yahoo Gemini API来访问Yahoo Gemini Advertising。

以下是我使用的步骤：

1. 在https://developer.yahoo.com/apps/create/上创建已安装的应用程序。 这给了我{Client ID}和{Client Secret} 。
2. https://api.login.yahoo.com/oauth2/request_auth?client_id={Client ID} &redirect_uri=oob&response_type=code&language=en-us 。 这将带我到我登录的yahoo登录界面。按下“同意”按钮，下一个屏幕显示七个字母的授权码（比如nzbcns9）。 我写下了这个授权码。

3. 然后我使用以下代码尝试获取访问令牌：

    class Program { static void Main(string[] args) { string clientId = {Client ID}; string secret = {Client Secret}; var request = WebRequest.Create(@"https://api.login.yahoo.com/oauth2/get_token"); request.Method = "POST"; SetBasicAuthHeader(request, clientId, secret); string postData = "grant_type=authorization_code&redirect_uri=oob&code=nzbcns9"; ASCIIEncoding encoding = new ASCIIEncoding(); byte[] byte1 = encoding.GetBytes(postData); request.ContentLength = byte1.Length; Stream dataStream = request.GetRequestStream(); dataStream.Write(byte1, 0, byte1.Length); dataStream.Close(); request.ContentType = "application/x-www-form-urlencoded"; var response = request.GetResponse(); Console.WriteLine(((HttpWebResponse)response).StatusDescription); } static void SetBasicAuthHeader(WebRequest request, String userName, String userPassword) { string authInfo = userName + ":" + userPassword; authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo)); request.Headers["Authorization"] = "Basic " + authInfo; } } 

然后我明白了

未处理的异常：System.Net.WebException：远程服务器返回错误：（401）未经授权。 在System.Net.HttpWebRequest.GetResponse（）。

我做错了什么？

我也尝试用Fiddler发布相同的消息，我明白了

{ “错误”： “INVALID_REQUEST”}

Answer 1

我尝试了你的代码，对我request.ContentType = "application/x-www-form-urlencoded";是把行request.ContentType = "application/x-www-form-urlencoded"; BEFORE Stream dataStream = request.GetRequestStream();

所以这有效：

    string postData = "grant_type=authorization_code&redirect_uri=oob&code=nzbcns9";
    ASCIIEncoding encoding = new ASCIIEncoding();
    byte[] byte1 = encoding.GetBytes(postData);
    request.ContentLength = byte1.Length;
    request.ContentType = "application/x-www-form-urlencoded";
    Stream dataStream = request.GetRequestStream();
    dataStream.Write(byte1, 0, byte1.Length);
    dataStream.Close();

Answer 2

这些都不适合我，但是一旦我将SetBasicAuthHeader更改为使用ISO-8859-1编码，它确实有效：

    static void SetBasicAuthHeader( WebRequest request, String userName, String userPassword )
    {
        string authInfo = userName + ":" + userPassword;
        authInfo = Convert.ToBase64String( Encoding.GetEncoding( "ISO-8859-1" ).GetBytes( authInfo ) );
        request.Headers[ "Authorization" ] = "Basic " + authInfo;
    }