无法从c#中的google api令牌验证器获取数据

Question

我正在使用令牌验证器google api

https://www.googleapis.com/oauth2/v3/tokeninfo?id_token=XYZ123

它给出了用户在浏览器中的电子邮件id，比如

{
 "iss": "https://accounts.google.com",
 "sub": "110169484474386276334",
 "azp": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
 "aud": "1008719970978-hb24n2dstb40o45d4feuo2ukqmcc6381.apps.googleusercontent.com",
 "iat": "1433978353",
 "exp": "1433981953",
 "email" OAuth scopes to the application.
 "email": "[e-mail]",
 "email_verified": "true",
 "name" : "Test User",
 "picture": "https://lh4.googleusercontent.com/-kYgzyAWpZzJ/ABCDEFGHI/AAAJKLMNOP/tIXL9Ir44LE/s99-c/photo.jpg",
 "given_name": "Test",
 "family_name": "User",
 "locale": "en"
}

现在我想从后端代码调用这个URL并检索邮件id以进行身份验证

我试过这样做

function(string access_token){
var url = "https://www.googleapis.com/oauth2/v3/tokeninfo?id_token=" + access_token;
WebRequest request = WebRequest.Create(url);
 request.Method = "GET";
 using (WebResponse response = request.GetResponse())
 {
  using (Stream stream = response.GetResponseStream())
   {
    XmlTextReader reader = new XmlTextReader(stream);
   }
  }
}

但是无法从json中获取数据

替代品吗?

我只需要获得用户的电子邮件id与access_token或idToken，客户端将发送到服务器

Answer 1

已解决

var json = new WebClient().DownloadString(url);

使用WebClient从浏览器获取数据

反序列化后得到数据