This seems like a pretty obvious, basic thing to expect from the Graph API, but I\'m having serious difficulty with it. All I want to do is get the ID for any particular URL
Try FQL for this;
http://graph.facebook.com/fql?q=select%20url%2C%20id%2C%20type%2C%20site%20from%20object_url%20where%20url%20%3D%20%22http%3A%2F%2Fkriek.hu%2F%22
returns:
{
"data": [
{
"url": "http://kriek.hu/",
"id": 497425470154,
"type": "link",
"site": "kriek.hu"
}
]
}
For more information, see object_url.
I hope it helps!