Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3/4TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

Objective-C Web API Examples

Primary Categories

AWS Translate
Activix CRM
Adyen
Amazon MWS
Azure Maps
Azure Monitor
Azure OAuth2
Azure Storage Accounts
Bluzone
CardConnect
ClickBank
Clickatell
Cloudfare
DocuSign
ETrade
Etsy
Facebook
GeoOp
GetHarvest
Jira
MYOB

Magento
Microsoft Calendar
Microsoft Group
Microsoft Tasks and Plans
Okta OAuth/OIDC
OneLogin OIDC
PayPal
Peoplevox
Populi
QuickBooks
SOAP finkok.com
Shippo
Shopify
Stripe
SugarCRM
Trello
Twitter
VoiceBase
Vonage
Walmart
Walmart v3
Xero
eBay
effectconnect

 

 

 

(Objective-C) Twitter - Get Follower IDs

Demonstrates how to get a list of follower IDs for a Twitter user. If the number of followers is more than can be returned in a single response, this example will use cursors to page through the followers.

Note: Rate limits will prevent a program from paging through huge lists of followers. In general, a maximum of 16 GET requests (pages) can be retrieved in a short period of time.

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoJsonObject.h>
#import <CkoRest.h>
#import <CkoOAuth1.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// ----------------------------------------------------------------------
// This initial setup, which involves setting the OAuth1 properties and connecting
// to api.twitter.com, is only required once at the beginning.  Once connected, the same
// object instance may be re-used, and if necessary, it will automatically reconnect
// as needed.

// Assume we've previously obtained an access token and saved it to a JSON file..
CkoJsonObject *json = [[CkoJsonObject alloc] init];
BOOL success = [json LoadFile: @"qa_data/tokens/twitter.json"];

CkoRest *rest = [[CkoRest alloc] init];
CkoOAuth1 *oauth1 = [[CkoOAuth1 alloc] init];

oauth1.ConsumerKey = @"TWITTER_CONSUMER_KEY";
oauth1.ConsumerSecret = @"TWITTER_CONSUMER_SECRET";
oauth1.Token = [json StringOf: @"oauth_token"];
oauth1.TokenSecret = [json StringOf: @"oauth_token_secret"];
oauth1.SignatureMethod = @"HMAC-SHA1";
[oauth1 GenNonce: [NSNumber numberWithInt: 16]];

[rest SetAuthOAuth1: oauth1 useQueryParams: NO];

BOOL bAutoReconnect = YES;
success = [rest Connect: @"api.twitter.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: bAutoReconnect];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// This ends the initial setup...
// ----------------------------------------------------------------------

// This Twitter user has about 77.5K followers..
[rest AddQueryParam: @"screen_name" value: @"MarcusMiller959"];

CkoJsonObject *jsonResponse = [[CkoJsonObject alloc] init];
jsonResponse.EmitCompact = NO;

// Get the 1st page of results using a cursor of "-1".
CkoStringBuilder *sbNextCursor = [[CkoStringBuilder alloc] init];
[sbNextCursor SetString: @"-1"];

int pageNum = 1;
BOOL caseSensitive = NO;
BOOL bContinue = YES;
// Get a maximum of 5 pages (of 5000 ids each).
while (bContinue == YES) {

    if ([sbNextCursor ContentsEqual: @"0" caseSensitive: caseSensitive] == YES) {
        // This will cause the loop to exit..
        bContinue = NO;
    }
    else {
        // Adds or replaces the query param.
        [rest AddQueryParam: @"cursor" value: [sbNextCursor GetAsString]];

        // Get the next page of follower IDs
        NSString *resp = [rest FullRequestNoBody: @"GET" uriPath: @"/1.1/followers/ids.json"];
        if (rest.LastMethodSuccess != YES) {
            NSLog(@"%@",rest.LastErrorText);
            return;
        }

        [jsonResponse Load: resp];

        if ([rest.ResponseStatusCode intValue] != 200) {
            NSLog(@"%@",[jsonResponse Emit]);
            return;
        }

        // Show the number of IDs returned in this 
        int numIds = [[jsonResponse SizeOfArray: @"ids"] intValue];
        NSLog(@"%@%d%@%d",@"Page ",pageNum,@", Number of Ids: ",numIds);

        // Show the 1st 10 ids in this page.
        int i = 0;
        while (i < numIds) {
            jsonResponse.I = [NSNumber numberWithInt: i];
            NSLog(@"%@%d%@%@",@"    ",i,@": ",[jsonResponse StringOf: @"ids[i]"]);

            i = i + 1;
            if (i > 10) {
                // Force the loop to exit.
                i = numIds;
            }

        }

        pageNum = pageNum + 1;
        if (pageNum > 5) {
            bContinue = NO;
        }
        else {
            [sbNextCursor SetString: [jsonResponse StringOf: @"next_cursor_str"]];
        }

    }

}

// A successful JSON response for the 1st page looks like this:

// 	{
// 	  "ids": [
// 	    3140496044,
// 	    793204773751324672,
// 	    789951187781050369,
// 	    763520773587922945,
// 	    ...
// 	    15031286,
// 	    2668251246,
// 	    3751659443
// 	  ],
// 	  "next_cursor": 1531680438812851153,
// 	  "next_cursor_str": "1531680438812851153",
// 	  "previous_cursor": 0,
// 	  "previous_cursor_str": "0"
// 	}

// The output of this program looks like this:

// 	Page 1, Number of Ids: 5000
// 	    0: 931953350
// 	    1: 786708055
// 	    2: 560845700
// 	    3: 3140496044
// 	    4: 793204773751324672
// 	    5: 789951187781050369
// 	    6: 763520773587922945
// 	    7: 793143274059988992
// 	    8: 793139683412762624
// 	    9: 1588222783
// 	    10: 703821370778451968
// 	Page 2, Number of Ids: 5000
// 	    0: 15031286
// 	    1: 2668251246
// 	    2: 3751659443
// 	    3: 3324584493
// 	    4: 2440214809
// 	    5: 1322335441
// 	    6: 4439178393
// 	    7: 4911573711
// 	    8: 720792880080560128
// 	    9: 720805087124267008
// 	    10: 172926330
// 	Page 3, Number of Ids: 5000
// 	    0: 93867176
// 	    1: 2992946183
// 	    2: 2825296077
// 	    3: 3784572861
// 	    4: 2150051321
// 	    5: 2460881603
// 	    6: 4128849341
// 	    7: 2234697931
// 	    8: 2379418164
// 	    9: 3425171542
// 	    10: 325759186
// 	Page 4, Number of Ids: 5000
// 	    0: 22793412
// 	    1: 3347750489
// 	    2: 316923043
// 	    3: 2481719196
// 	    4: 3363591905
// 	    5: 3238116492
// 	    6: 58467130
// 	    7: 3015182362
// 	    8: 2985342719
// 	    9: 3095965720
// 	    10: 17505957
// 	Page 5, Number of Ids: 5000
// 	    0: 2541434684
// 	    1: 140022957
// 	    2: 134845054
// 	    3: 772810508
// 	    4: 16979294
// 	    5: 2320540225
// 	    6: 105439442
// 	    7: 2796744529
// 	    8: 251128801
// 	    9: 350229758
// 	    10: 2683994716
// 
 

© 2000-2019 Chilkat Software, Inc. All Rights Reserved.