错误使用Facebook C#SDK获得C#WebForms的访问令牌
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25-10-2019 - |
题
我已经搜索了至少10000个访问令牌问题,但还没有找到解决问题的解决方案。我正在使用Facebook SDK来验证,但是当我尝试简单地。在“我”上找到错误的错误:“(oauthexception)必须使用主动访问令牌来查询有关当前用户的信息。”我正在使用.NET 3.5框架,因此无法使用“动态”。当我替换有效的ID时,“我”它可以正常工作并显示名称。当我尝试发布喂食时,我会得到“(oauthexception)(#200)用户尚未授权执行此操作的应用程序”。任何帮助都会很棒。谢谢。
这是我的代码:
var webRequest = (HttpWebRequest)HttpWebRequest.Create("https://graph.facebook.com/oauth/access_token");
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
var requestString = "client_id=[appid]&client_secret=[secret]&redirect_uri=http%3A%2F%2Fwww.website.com&grant_type=client_credentials&scope=publish_stream,read_stream,offline_access";
byte[] bytedata = Encoding.UTF8.GetBytes(requestString);
webRequest.ContentLength = bytedata.Length;
var requestStream = webRequest.GetRequestStream();
requestStream.Write(bytedata, 0, bytedata.Length);
requestStream.Close();
var response = webRequest.GetResponse();
var responseStream = new StreamReader(response.GetResponseStream());
var responseString = responseStream.ReadToEnd();
responseStream.Close();
response.Close();
if (!String.IsNullOrEmpty(responseString))
{
var accessToken = responseString.Replace("access_token=", "");
var fb = new FacebookWebClient(accessToken.ToString());
var me = fb.Get<FBUser>("100000219214008");
string firstName = me.name;
var postparameters = new Dictionary<string, object>();
postparameters["message"] = "Hello world!";
postparameters["name"] = "This is a name";
postparameters["link"] = "http://thisisalink.com";
postparameters["description"] = "This is a description";
var result = fb.Post("/100000219214008/feed", postparameters);
Response.Write (firstName.ToString());
}
解决方案
在与Facebook C#SDK挣扎了几天后,我选择与Facebook JavaScript SDK一起去。该SDK尽管是客户端,但具有广泛的支持,示例和文档。它只是有效的。
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