Writing a Facebook App

I've been writing a Facebook app. They offer a Java client library (as well as several other non-official ones for other languages) but I'm using the PHP one. I really like the library they include. It has been incredibly easy to use, even for a PHP hacker like me.

One of the best parts of their library is the FaceRestClient call_method function. Only problem is that it does not work with photo uploads. Of course that happened to be one of the things I wanted to do. It doesn't work because you need to set a multi-part mime header for a photo upload and format the binary data per that content-type. Obviously all this can be done by hand, but luckily I found something better: the photos lib. This makes it trivial to upload an image. Here's the code I wrote for it:

 include_once 'facebookapi_php5_restlib.php';
 include_once 'facebook_php5_photoslib.php';

 // get your own api_key and secret!
 $facebook = new FacebookPhotosRestClient($api_key, $secret);
        
 // user logged in prior to uploading pic, so sesion key passed as param
 $session_key = $_REQUEST['session_key'];
 $facebook->session_key = $session_key;

 $tmpLocation = $_FILES['uploadedfile']['tmp_name'];

 if (is_uploaded_file($tmpLocation)){
  $aid = $_REQUEST['album'];
  $caption = $_REQUEST['caption'];
  $res = $facebook->photos_upload($tmpLocation, $aid, $caption);
  echo "Here is a link to your pic, make sure you approve it first:".$res['link'];
 } else {
  echo "Ye gods! Something went wrong!";
 }
?>