Facebook authentication with ACAccountType

gistfile1.txt

NSDictionary * facebookOptions = @{ACFacebookAppIdKey:kPSHFacebookAppID,
                                       ACFacebookPermissionsKey: @[@"email", @"publish_stream", @"read_stream", @"user_photos"],
                                       ACFacebookAudienceKey:ACFacebookAudienceFriends};
    
ACAccountType * facebookAccountType = [self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];
[self.accountStore requestAccessToAccountsWithType:facebookAccountType options:facebookOptions
                                            completion: ^(BOOL granted, NSError *error) {
                                                NSLog(@"granted: %i", granted);
                                                if (granted) {
                                                    NSArray *accounts = [self.accountStore accountsWithAccountType:facebookAccountType];
                                                    
                                                    NSLog(@"accounts: %@", accounts);
                                                    //it will always be the last object with SSO
                                                    self.facebookAccount = [accounts lastObject];
                                                    success();
                                                } else {
                                                   // error handling
                                                }