（OAuthException - ＃2500）有效的访问令牌必须用于查询当前用户

Question

 string accessToken = GetAccessToken(); 
     string accessKey = accessToken.Split('=')[1]; 

     var client = new FacebookClient(accessKey); 
     dynamic me = client.Get("me"); 

这里的信息是获得访问令牌的方法和它返回一个有效的访问令牌

private static string GetAccessToken() 
    { 
     // Create a request using a URL that can receive a post. 
     WebRequest request = WebRequest.Create("https://graph.facebook.com/oauth/access_token?grant_type=client_credentials&client_id=201193246663533&client_secret=secretkeyhere"); 
     // Set the Method property of the request to POST. 
     request.Method = "POST"; 
     // Create POST data and convert it to a byte array. 
     string postData = "This is a test that posts this string to a Web server."; 
     byte[] byteArray = Encoding.UTF8.GetBytes(postData); 
     // Set the ContentType property of the WebRequest. 
     request.ContentType = "application/x-www-form-urlencoded"; 
     // Set the ContentLength property of the WebRequest. 
     request.ContentLength = byteArray.Length; 
     // Get the request stream. 
     Stream dataStream = request.GetRequestStream(); 
     // Write the data to the request stream. 
     dataStream.Write(byteArray, 0, byteArray.Length); 
     // Close the Stream object. 
     dataStream.Close(); 
     // Get the response. 
     WebResponse response = request.GetResponse(); 
     // Display the status. 
     Console.WriteLine(((HttpWebResponse)response).StatusDescription); 
     // Get the stream containing content returned by the server. 
     dataStream = response.GetResponseStream(); 
     // Open the stream using a StreamReader for easy access. 
     StreamReader reader = new StreamReader(dataStream); 
     // Read the content. 
     string responseFromServer = reader.ReadToEnd(); 
     // Display the content. 
     Console.WriteLine(responseFromServer); 
     // Clean up the streams. 
     reader.Close(); 
     dataStream.Close(); 
     response.Close(); 

     return responseFromServer; 
    } 

然而当我在调试

dynamic me = client.Get("me"); 

抛出此异常：

（OAuthException - ＃2500）的一必须使用访问令牌来查询有关当前用户的信息。

我该如何解决这个问题？

Answer 1

您正在获取应用程序的访问令牌，而不是用户。所以，“我”没有意义。您应该在其中提供身份证件 - 您的用户ID或您的应用程序ID或您的应用程序有权访问的任何其他ID。

两个电话的工作与你的例子：

dynamic me = client.Get("1000<<MY_USER_ID>>5735"); 

dynamic theApp = client.Get("201193246663533");