An Extension to Contao providing facebook albums as content elements

The extension should automatically get the necessary tokens to read the data unless your Facebook app is not reviewed and published. In other cases you may want to obtain the access token manually as follows:

1. Go to https://developers.facebook.com/tools/explorer, select your desired app, add pages_read_engagement permission and click Get Token > Get User Access Token to get the short-lived access token.
2. Go to https://graph.facebook.com/v5.0/oauth/access_token?grant_type=fb_exchange_token&client_id={app_id}&client_secret={app_secret}&fb_exchange_token={short_lived_token} and copy the access_token value from the JSON response, this is the long-lived access token.
3. Use https://developers.facebook.com/tools/debug/accesstoken to verify that the token is valid, doesn't expire and contains the pages_read_engagement scope.
4. You can then use this token as field value for User Access Token in the Facebook album account settings.