How do i get a long lived 60 days access token to post messages on facebook ? Getting exception error
I created just now a new app in the facebook site: https://developers.facebook.com
I have a new access token but its for short time will expire after 2 hours or so.
And i also got the app id and app secret code.
This is how im trying to use it:
private string PostFacebookWall(string accessToken, string message)
var responsePost = "";
try
//create the facebook account object
var objFacebookClient = new FacebookClient(accessToken);
var parameters = new Dictionary<string, object>();
parameters["message"] = message;
responsePost = objFacebookClient.Post("feed", parameters).ToString();
catch (Exception ex)
responsePost = "Facebook Posting Error Message: " + ex.Message;
return responsePost;
In this method PostFacebookWall its working now with the new access token i can post on my wall.
But since it will expire in few hours i want to make it longer access token for 60 days. So i have this method:
public static string RenewToken(string existingToken)
var fb = new FacebookClient();
dynamic result = fb.Get("oauth/access_token",
new
client_id = ,
client_secret = "",
grant_type = "fb_exchange_token",
fb_exchange_token = existingToken
return result.access_token;
Si called the method RenewToken in my constructor and used with my current access token code and im getting this exception:
(OAuthException - #1) The access token does not belong to application 1378943962355167
Strange since i checked double time and got the app id and secret from the current app.
This is the full exception error message:
Facebook.FacebookOAuthException was unhandled
HResult=-2146233088
Message=(OAuthException - #1) The access token does not belong to application 1378943962355167
Source=Facebook
ErrorCode=1
ErrorSubcode=0
ErrorType=OAuthException
StackTrace:
at Facebook.FacebookClient.ProcessResponse(HttpHelper httpHelper, String responseString, Type resultType, Boolean containsEtag, IList`1 batchEtags)
at Facebook.FacebookClient.Api(HttpMethod httpMethod, String path, Object parameters, Type resultType)
at Facebook.FacebookClient.Get(String path, Object parameters, Type resultType)
at Facebook.FacebookClient.Get(String path, Object parameters)
at ScrollLabelTest.Form1.RenewToken(String existingToken) in e:\scrolllabel\ScrollLabel\ScrollLabel\Form1.cs:line 290
at ScrollLabelTest.Form1..ctor() in e:\scrolllabel\ScrollLabel\ScrollLabel\Form1.cs:line 28
at ScrollLabelTest.Program.Main() in e:\scrolllabel\ScrollLabel\ScrollLabel\Program.cs:line 18
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
Questions related to Facebook should be posted on their forums. These forums are for MS-related technologies.
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