Facebook app (NOT user) access token expiration

facebook-graph-api access-token
eugen picture eugen · Jan 25, 2012 · Viewed 13k times · Source

Do Facebook APP access tokens expire? These tokens are different than the USER tokens; they are acquired like this:

https://graph.facebook.com/oauth/access_token?grant_type=client_credentials&client_id={0}&client_secret={1})

as described in the App Login section of the document at http://developers.facebook.com/docs/authentication/.

Are there any circumstances under which they will become invalid?

NB: This is NOT a question about USER access tokens (which are clearly documented). There was an identical question http://facebook.stackoverflow.com/questions/7322063/does-app-login-access-token-expire wrongly closed as duplicate of another question about USER access tokens.

Answer

David Knell picture David Knell · Jun 9, 2012

Per the Facebook documentation:

An App Access Token is signed using your app secret and will not expire; it will be invalidated if you re-key/reset your application secret.

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