I'm using a facebook extension in TYPO3 to pull out the facebook posts of a page. Therefor I need the accesstoken. I googled around and found that I need a facebook app and I need to be administrator of the page.
Then I heard that I need to connet the app with the site, but how can I do this?
I also tried to get accesstoken:
https://graph.facebook.com/oauth/access_token?client_id=APP_ID&client_secret=APP_SECRET&grant_type=client_credentials
And then performing:
https://graph.facebook.com/oauth/access_token?grant_type=fb_exchange_token& client_id={app-id}&client_secret={app-secret}&fb_exchange_token={short-lived-token}
... with this token but it says No user access token specified
Can someone help me step by step how to get the long lived token?