I use FBWebDialogs presentFeedDialogModallyWithSession:parameters:handler: for sharing on facebook. I passed the parameter as
NSMutableDictionary *parameterDict = [NSMutableDictionary dictionary];
parameterDict[@"link"] =@"link url";
parameterDict[@"name"]=@"Hello world";
parameterDict[@"caption"]=@"caption string";
parameterDict[@"friends"] = fbfriends;
FBGraphObject *obj = places[0];
parameterDict[@"place"]= [obj valueForKey:@"id"];
parameterDict[@"linkDescription"]= @"Just a test of sharing.";
Here link is posted on Facebook wall but tagging is not working Any Idea folks?