iPhone- Twitter API GET Users Followers/Following

Question

I want to be able to use the Twitter API for ios 5 to get all of the user followers and following user name into a NSDictionary...

I\'ve hit a road bloc

Answer 1

1. Referring to comments on post of runmad the source of error for "[__NSArrayI objectAtIndex:]: index 0 beyond bounds for empty array" is that you have not setup twitter account in simulator. You need to sign twitter with your username and a temporary password provided by twitter.

2. Other source of error is "setObject for key error, key id is nil". To overcome that type below code : -

-(void)getTwitterAccounts {
    ACAccountStore *accountStore = [[ACAccountStore alloc] init];
    // Create an account type that ensures Twitter accounts are retrieved.
    ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
    // let's request access and fetch the accounts
    [accountStore requestAccessToAccountsWithType:accountType
                            withCompletionHandler:^(BOOL granted, NSError *error) {
                                // check that the user granted us access and there were no errors (such as no accounts added on the users device)
                                if (granted && !error) {
                                    NSArray *accountsArray = [accountStore accountsWithAccountType:accountType];
                                    if ([accountsArray count] > 1) {
                                        // a user may have one or more accounts added to their device
                                        // you need to either show a prompt or a separate view to have a user select the account(s) you need to get the followers and friends for
                                    } else {
                                        [self getTwitterFriendsForAccount:[accountsArray objectAtIndex:0]];
                                    }
                                } else {
                                    // handle error (show alert with information that the user has not granted your app access, etc.)
                                }
                            }];
}

-(void)getTwitterFriendsForAccount:(ACAccount*)account {
    // In this case I am creating a dictionary for the account
    // Add the account screen name
    NSMutableDictionary *accountDictionary = [NSMutableDictionary dictionaryWithObjectsAndKeys:account.username, @"screen_name", nil];
    // Add the user id (I needed it in my case, but it's not necessary for doing the requests)
    [accountDictionary setObject:[[[account dictionaryWithValuesForKeys:[NSArray arrayWithObject:@"properties"]] objectForKey:@"properties"] objectForKey:@"user_id"] forKey:@"user_id"];
    // Setup the URL, as you can see it's just Twitter's own API url scheme. In this case we want to receive it in JSON
    NSURL *followingURL = [NSURL URLWithString:@"https://api.twitter.com/1.1/followers/list.json"];
    // Pass in the parameters (basically '.ids.json?screen_name=[screen_name]')
    NSDictionary *parameters = [NSDictionary dictionaryWithObjectsAndKeys:account.username, @"screen_name", nil];
    // Setup the request
    TWRequest *twitterRequest = [[TWRequest alloc] initWithURL:followingURL
                                                    parameters:parameters
                                                 requestMethod:TWRequestMethodGET];
    // This is important! Set the account for the request so we can do an authenticated request. Without this you cannot get the followers for private accounts and Twitter may also return an error if you're doing too many requests
    [twitterRequest setAccount:account];
    // Perform the request for Twitter friends
    [twitterRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
        if (error) {
            // deal with any errors - keep in mind, though you may receive a valid response that contains an error, so you may want to look at the response and ensure no 'error:' key is present in the dictionary
        }
        NSError *jsonError = nil;
        // Convert the response into a dictionary
        NSDictionary *twitterFriends = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONWritingPrettyPrinted error:&jsonError];
        
        NSLog(@"%@", twitterFriends);
    }];
}

import

import

Note:- TWRequest has being deprecated. So instead you can also use this snippet:

ACAccountStore *accountStore = [[ACAccountStore alloc] init];
 ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
 [accountStore requestAccessToAccountsWithType:accountType options:nil completion:^(BOOL granted, NSError *error){
 if (granted) {
 NSArray *accounts = [accountStore accountsWithAccountType:accountType];
 // Check if the users has setup at least one Twitter account
 if (accounts.count > 0)
 {
 ACAccount *twitterAccount = [accounts objectAtIndex:0];

 for(ACAccount *t in accounts)
 {
 if([t.username isEqualToString:twitterAccount.username])
 {
 twitterAccount = t;
 break;
 }
 }

 SLRequest *twitterInfoRequest = [SLRequest requestForServiceType:SLServiceTypeTwitter requestMethod:SLRequestMethodGET URL:[NSURL URLWithString:@"https://api.twitter.com/1.1/followers/list.json"] parameters:[NSDictionary dictionaryWithObjectsAndKeys:[NSString stringWithFormat:@"%@", twitterAccount.username], @"screen_name", @"-1", @"cursor", nil]];
 [twitterInfoRequest setAccount:twitterAccount];
 // Making the request
 [twitterInfoRequest performRequestWithHandler:^(NSData *responseData, NSHTTPURLResponse *urlResponse, NSError *error) {
 dispatch_async(dispatch_get_main_queue(), ^{
 // Check if we reached the reate limit
 if ([urlResponse statusCode] == 429) {
 NSLog(@"Rate limit reached");
 return;
 }
 // Check if there was an error
 if (error) {
 NSLog(@"Error: %@", error.localizedDescription);
 return;
 }
 // Check if there is some response data
 if (responseData) {
 NSError *error = nil;
 NSArray *TWData = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableLeaves error:&error];
 NSLog(@"TWData : %@", TWData);

 }
 });
 }];
 }
 } else {
 NSLog(@"No access granted");
 }
 }];