I found many online tutorial about how to post image to Facebook using Facebook iOS SDK, but i'm looking for a way to get posted image id. Is it returned with callback methods(if yes, then with which key) or is it even possible to get posted image id?
When successfully uploading the image, you are given the url of the image (key:uri), you could work out the image id from that i guess. Having the image url should be enough to work with.