Facebook的SDK .NET - (#200)的用户没有授权的应用程序来执行此操作 [英] Facebook SDK .NET - (#200) The user hasn't authorized the application to perform this action
问题描述
我想发布消息到Facebook页面从C#Web应用程序。我收到以下异常抛出调用 FacebookClient.Post(...)
:
I am trying to post a message to a Facebook page from a C# web application. I am getting the following exception thrown on calling FacebookClient.Post(...)
:
FacebookOAuthException (OAuthException - #200)(#200),用户可以选择不 授权应用程序来执行此操作
FacebookOAuthException (OAuthException - #200) (#200) The user hasn't authorized the application to perform this action
code:
var facebookClient = new FacebookClient();
facebookClient.AppId = appId;
facebookClient.AppSecret = appSecret;
if (Request["code"] == null)
{
var authUrl = facebookClient.GetLoginUrl(new
{
client_id = appId,
client_secret = appSecret,
scope = "publish_stream",
redirect_uri = Request.Url.AbsoluteUri
});
Response.Redirect(authUrl.AbsoluteUri);
}
else
{
dynamic result = facebookClient.Get("oauth/access_token", new
{
client_id = appId,
client_secret = appSecret,
grant_type = "client_credentials",
redirect_uri = Request.Url.AbsoluteUri,
code = Request["code"]
});
facebookClient.AccessToken = result.access_token;
// Store access token
}
发送消息:
protected void PublishMessage(string message)
{
FacebookClient client = new FacebookClient(AccessToken);
client.AppId = ApplicationId;
client.AppSecret = ApplicationSecret;
dynamic parameters = new ExpandoObject();
parameters.message = message;
client.Post(PageName + "/feed", parameters);
}
我接受以下Facebook的提示,以确保应用程序可以访问:
I accept the following Facebook prompts to ensure that the app has access:
在我的Facebook个人资料设置,应用程序是这样的:
And in my Facebook profile settings, the app looks like this:
我使用Facebook SDK的.NET v6.4.2(最新的)。
I am using the Facebook SDK for .NET v6.4.2 (the latest).
推荐答案
这看似愚蠢的问题,但不是你缺少你的访问令牌请求,请求code?难道不应该是这样吗?
This may seem a silly question, but aren't you missing the Request code from your access token request? Shouldn't it be like this?
dynamic result = facebookClient.Get("oauth/access_token", new
{
client_id = appId,
client_secret = appSecret,
grant_type = "authorization_code"
redirect_uri = Request.Url.AbsoluteUri,
code = Request["code"]
});
修改刚刚意识到,必须使用请求code时使用不同的grant_type:)
Edit Just realized, you have to use a different grant_type when using the request code :)
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