I'm creating a custom module in Drupal, that for part of its functionality must fetch posts from a business page. So for simplicity, I'm using fbapp module as a dependency (drupal.org/project/fbapp), so that I can use it's authentication and request functions (fbapp_app_authenticate() and fbapp_graph_request()) without having to worry about the constant facebook graph updates making my own code obsolete.
I've created a facebook app, so authentication should be app token, using appid and app secret. This seems fine and I'm getting back access_token. However, when I try to read posts from a publicly available page (the clients), I get the response:
"Unsupported get request. Please read the Graph API documentation at https:\/\/developers.facebook.com\/docs\/graph-api"
Here's the queries and responses my code produces:
graph.facebook.com/oauth/access_token?client_id=<redacted>&client_secret=<redacted>&grant_type=client_credentials
array(1) {
["access_token"]=>
string(43) "<redacted>|<redacted>"
}
graph.facebook.com/<page_id>/posts?access_token=<redacted>|<redacted>"
string(183) "{"error":{"message":"Unsupported get request. Please read the Graph API documentation at https:\/\/developers.facebook.com\/docs\/graph-api","type":"GraphMethodException","code":100}}"
Can anyone verify a correct way to query a Facebook page programmatically, perhaps there's a setting in the page I'm querying that I need to set (although I can't find anything)?
If page restrictions apply, the page's feed can only be retrieved with an user access token as far as I know (because FB needs to evaluate the visibility criteria, and setting your app to the same restrictions doesn't help here):
See