What is wrong with Twitter API on iOs 8? - ios

Question

I want to create an action in Objetive-C that makes an instant "follow" in a Twitter Acount, but when I launch my app it crashes. Could anyone tell me what is wrong?
It returns thread 1 exc_bad_access.
- (IBAction)Twitter:(id)sender {
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
[accountStore requestAccessToAccountsWithType:accountType options:nil
completion:^(BOOL granted, NSError *error) {
if(granted) {
NSArray *accountsArray = [accountStore accountsWithAccountType:accountType];
if ([accountsArray count] > 0) {
ACAccount *twitterAccount = [accountsArray objectAtIndex:0];
NSMutableDictionary *tempDict = [[NSMutableDictionary alloc] init];
[tempDict setValue:#"user" forKey:#"UserName"];
[tempDict setValue:#"true" forKey:#"follow"];
NSURL *URLTwitter = [NSURL URLWithString:#"https://api.twitter.com/1.1/friendships/create.format"];
SLRequest *postRequest = [SLRequest requestForServiceType:#"Twitter" requestMethod:SLRequestMethodPOST URL:URLTwitter parameters:tempDict];
[postRequest setAccount:twitterAccount];
[postRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
NSString *output = [NSString stringWithFormat:#"HTTP response status: %li", [urlResponse statusCode]];
NSLog(#"%#", output);
}];
}
}
}];
}

Answer 1

Your twitter url is incorrect. It should be
https://api.twitter.com/1.1/friendships/create.json

Answer 2

Here is what was wrong...
1. Firstly, since the new Twitter API version 1.1 the correct URL is: https://api.twitter.com/1.1/friendships/create.json.
2. The 'for key' value for the user name must to be "screen_name", and it will be like the following fragment:
NSMutableDictionary *tempDict = [[NSMutableDictionary alloc] init];
[tempDict setValue:#"UserNameOnTwitter" forKey:#"screen_name"];
[tempDict setValue:#"true" forKey:#"follow"];
The value for 'requestForServiceType' must to be SLServiceTypeTwitter as the following:
SLRequest *postRequest = [SLRequest requestForServiceType: SLServiceTypeTwitter requestMethod:SLRequestMethodPOST URL:URLTwitter parameters:tempDict];
So the whole block will be:
ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
[accountStore requestAccessToAccountsWithType:accountType options:nil
completion:^(BOOL granted, NSError *error) {
if(granted) {
NSArray *accountsArray = [accountStore accountsWithAccountType:accountType];
if ([accountsArray count] > 0) {
ACAccount *twitterAccount = [accountsArray objectAtIndex:0];
NSMutableDictionary *tempDict = [[NSMutableDictionary alloc] init];
[tempDict setValue:#"UserNameOnTwitterWithoutAt" forKey:#"screen_name"];
[tempDict setValue:#"true" forKey:#"follow"];
NSURL *URLTwitter = [NSURL URLWithString:#"https://api.twitter.com/1.1/friendships/create.json"];
SLRequest *postRequest = [SLRequest requestForServiceType: SLServiceTypeTwitter requestMethod:SLRequestMethodPOST URL:URLTwitter parameters:tempDict];
[postRequest setAccount:twitterAccount];
[postRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
NSString *output = [NSString stringWithFormat:#"HTTP response status: %li", [urlResponse statusCode]];
NSLog(#"%#", output);
}];
}
}
}];
Thanks anyway everyone.