Can my facebook app serve a gallery from a different facebook account? - facebook

Question

I am trying to serve a Facebook gallery for a client, and due to the server the site is being hosted on, the request needs to be authenticated.
I have set up an app using our company Facebook developer account. Although I have set the domain of the app to that of our client's, the gallery returned in the request is empty.
I am assuming that I will need access to the client's facebook account so I can create an app associated directly with their facebook account - the one where I want the galleries from? EDIT - just thought I'd point out that the client would prefer not to give me their passwords for their facebook account...
Here is the auth code I have used, if anyone will be kind enough to point out any school boy errors I may have made.
$no_albums = 6;
$latest_albums = null;
$user_id = "xxxxxx";
$app_secret = "xxxxxxxxxxxxxxxxxxxx";
$app_token_url = "https://graph.facebook.com/oauth/access_token?"
. "client_id=" . $user_id
. "&client_secret=" . $app_secret
. "&grant_type=client_credentials"
. "&scope=user_photos";
$response = wp_remote_get($app_token_url);
$access_token = $response['body'];
error_log(print_r($response,true));
$query = 'https://graph.facebook.com/'.$user_id.'/albums?' . $access_token;
$albums = json_decode(file_get_contents('http://graph.facebook.com/'.$user_id.'/albums') );
And this is the response I get ( $albums ) in my error logs:
Array
(
[headers] => Array
(
[access-control-allow-origin] => *
[cache-control] => private, no-cache, no-store, must-revalidate
[content-type] => application/json; charset=UTF-8
[etag] => "1050253aec7b29caff644806927dabfa81406eee"
[expires] => Sat, 01 Jan 2000 00:00:00 GMT
[pragma] => no-cache
[x-fb-rev] => 812093
[x-fb-debug] => 9I0lRzV3GZxrflP/19iBvhly6FLUVI9jCHJAXcw0Dm0=
[date] => Mon, 13 May 2013 10:45:39 GMT
[connection] => close
[content-length] => 11
)
[body] => {"data":[]}
[response] => Array
(
[code] => 200
[message] => OK
)
[cookies] => Array
(
)
[filename] =>
Thanks.

Answer 1

You've got a couple of basic problems here.
First, in your API request, you are looking for albums associated with your APP_ID. There are none. You should be using the client's PAGE_ID or USER_ID in the request to the graph API.
Second, you should be using the Facebook PHP SDK instead of file_get_contents() to make your requests. Especially if this is to be a production environment.
If your clients albums are publicly visible, you may not need to authenticate a user to view them. To know this for sure, you'd need to share your client's Facebook username.