Objective C: Detect number of Facebook invites - objective-c

Question

I'm trying to detect how many invites the user has sent while logged into their Facebook account. For example, I'm giving the user an option to purchase an item by inviting 3 friends to use the iOS application. If they invite 3, they are rewarded with the item. I'm really stuck on this one. Any help would be great and much appreciated!

Answer 1

I actually found code snippet for this after much research. I can't remember if it was on here or not, but here it is.
- (IBAction)inviteFacebookFriendsButton:(id)sender
{
// FBSample logic
// if the session is open, then load the data for our view controller
if (!FBSession.activeSession.isOpen)
{
// if the session is closed, then we open it here, and establish a handler for state changes
[FBSession openActiveSessionWithReadPermissions:nil
allowLoginUI:NO
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
if (error) {
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
} else if (session.isOpen) {
}
}];
}
MouseInTheHouseAppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];
if (appDelegate.session.isOpen)
{
NSMutableDictionary *postVariablesDictionary = [[NSMutableDictionary alloc] init];
[postVariablesDictionary setObject:#"Come play Mouse in the House with me!" forKey:#"message"];
[postVariablesDictionary setObject:#"Invite Friends" forKey:#"title"];
[FBWebDialogs presentDialogModallyWithSession:[FBSession activeSession] dialog:#"apprequests" parameters:postVariablesDictionary handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error)
{
if (error)
{
// Case A: Error launching the dialog or sending request.
NSLog(#"Error sending request.");
}
else
{
if (result == FBWebDialogResultDialogNotCompleted)
{
// Case B: User clicked the "x" icon
NSLog(#"User canceled request.");
}
else
{
NSRegularExpression * regex = [NSRegularExpression regularExpressionWithPattern:#"to%5B\\d+%5D=(\\d+)"
options:NSRegularExpressionCaseInsensitive
error:NULL];
NSArray * matches = [regex matchesInString:resultURL.absoluteString
options:0
range:(NSRange){0, resultURL.absoluteString.length}];
NSMutableArray * ids = [NSMutableArray arrayWithCapacity:matches.count];
for (NSTextCheckingResult * match in matches)
{
[ids addObject:[resultURL.absoluteString substringWithRange:[match rangeAtIndex:1]]];
}
NSLog(#"Number of friends invited: %lu", (unsigned long)ids.count);
}
}
}];
}
}