Notes on creating a facebook API access token that doesnt expire for accessing page posts (via a long-lived access token)
Just collating notes on how to create a non-expiring facebook API access token for accessing posts from a facebook page as I have to create them occasionally for the a social posts website plugin i wrote (but not often enough to remember how to do it :-)
Assuming we have a facebook app created already, note down app ID and secret and head over to:
https://developers.facebook.com/tools/explorer
Select the App you want to create the access token for from the drop down list. Select Get Token-> Get User Access Token
Will show a popover of security scopes. For access to a pages post select "Publish pages" and "Manage pages, click the "Get Access Token" button
Now go to: https://developers.facebook.com/tools/accesstoken Press the debug button next to the user token , and choose the option to create the "Extend access token" (which is good for 2 months) Copy the long-lived token.
To convert it to a never expiring token, go back to https://developers.facebook.com/tools/explorer , and paste the long lived
token in the Access Token field.
Change the api end point to /me/accounts and click submit - this will show a non-expiring access token.
To verify the token wont expire, copy it, go back to https://developers.facebook.com/tools/accesstoken and debug the access token.