Do Facebook Oauth 2.0 Access Tokens Expire?

Question

I am playing around with the Oauth 2.0 authorization in Facebook and was wondering if the access tokens Facebook passes out ever expire. If so, is there a way to request a l

Answer 1

check the following things when you interact with facebook graph api.

1) Application connect URL should be the base of your "redirect_uri" connect URL:- www.x-minds.org/fb/connect/ redirect_uri - www.x-minds.org/fb/connect/redirect 2) Your "redirect_uri" should be same in the both case (when you request for a verification code and request for an access_token) redirect_uri - www.x-minds.org/fb/connect/redirect 3) you should encode the the argument when you request for an access_token 4) shouldn't pass the argument (type=client_cred) when you request for an access_token. the authorization server will issue a token without session part. we can't use this token with "me" alias in graph api. This token will have length of (40) but a token with session part will have a length of(81). An access token without session part will work with some cases

eg: -https://graph.facebook.com/?access_token=116122545078207|EyWJJYqrdgQgV1bfueck320z7MM. But Graph API with "me" alias will work with only token with session part.