Actionscript 3 :: Get Facebook Post Id With Facebook-SDK?

After I upload a photo on a desktop facebook application i need to store it's post id in a database. From the facebook ActionScript SDK documentation:pi() methodpublic static function api(method:String, callback:Function, params:* = null, requestMethod:String = GET):voidMakes a new request on the Facebook Graph API.Parameters [...]callback:Function — Method that will be called when this request is complete The handler must have the signature of callback(result:Object, fail:Object); On success, result will be the object data returned from Facebook. On fail, result will be null and fail will contain information about the error.

So I implemented my callback function as follows:
protected function handleUploadComplete(response:Object, fail:Object):void{
status = (response) ? 'Success' : 'Error';

[code].....