Send Friend request with facebook graph api in iphone

I am creating iphone app with facebook graph api. I am able to get list of my friends.. Any body knows how to send friend request to any user ?

and I am 开发者_如何转开发also trying to get particular FriendList ,,,

searched this Documentation

But how can I get this FriendList ID ???

/FRIENDLIST_ID

The Facebook Graph API doesn't support adding friends.

To get a list of their friend lists, you need read_friendlists extended permission. Then, you can call https://graph.facebook.com/me/friendlists which will return all of their friends lists, with a name and the friend list id you are looking for. You can test this with the graph explorer (check box for read_friendlists permission).