Unicode 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.

This example is deprecated and no longer valid.

Unicode C++

#include <CkJsonObjectW.h>
#include <CkRestW.h>
#include <CkOAuth1W.h>
#include <CkStringBuilderW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  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..
    CkJsonObjectW json;
    success = json.LoadFile(L"qa_data/tokens/twitter.json");

    CkRestW rest;
    CkOAuth1W oauth1;

    oauth1.put_ConsumerKey(L"TWITTER_CONSUMER_KEY");
    oauth1.put_ConsumerSecret(L"TWITTER_CONSUMER_SECRET");
    oauth1.put_Token(json.stringOf(L"oauth_token"));
    oauth1.put_TokenSecret(json.stringOf(L"oauth_token_secret"));
    oauth1.put_SignatureMethod(L"HMAC-SHA1");
    oauth1.GenNonce(16);

    rest.SetAuthOAuth1(oauth1,false);

    bool bAutoReconnect = true;
    success = rest.Connect(L"api.twitter.com",443,true,bAutoReconnect);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

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

    //  This Twitter user has about 77.5K followers..
    rest.AddQueryParam(L"screen_name",L"MarcusMiller959");

    CkJsonObjectW jsonResponse;
    jsonResponse.put_EmitCompact(false);

    //  Get the 1st page of results using a cursor of "-1".
    CkStringBuilderW sbNextCursor;
    sbNextCursor.SetString(L"-1");

    int pageNum = 1;
    bool caseSensitive = false;
    bool bContinue = true;
    //  Get a maximum of 5 pages (of 5000 ids each).
    while (bContinue == true) {

        if (sbNextCursor.ContentsEqual(L"0",caseSensitive) == true) {
            //  This will cause the loop to exit..
            bContinue = false;
        }
        else {
            //  Adds or replaces the query param.
            rest.AddQueryParam(L"cursor",sbNextCursor.getAsString());

            //  Get the next page of follower IDs
            const wchar_t *resp = rest.fullRequestNoBody(L"GET",L"/1.1/followers/ids.json");
            if (rest.get_LastMethodSuccess() != true) {
                wprintf(L"%s\n",rest.lastErrorText());
                return;
            }

            jsonResponse.Load(resp);

            if (rest.get_ResponseStatusCode() != 200) {
                wprintf(L"%s\n",jsonResponse.emit());
                return;
            }

            //  Show the number of IDs returned in this 
            int numIds = jsonResponse.SizeOfArray(L"ids");
            wprintf(L"Page %d, Number of Ids: %d\n",pageNum,numIds);

            //  Show the 1st 10 ids in this page.
            int i = 0;
            while (i < numIds) {
                jsonResponse.put_I(i);
                wprintf(L"    %d: %s\n",i,jsonResponse.stringOf(L"ids[i]"));

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

            }

            pageNum = pageNum + 1;
            if (pageNum > 5) {
                bContinue = false;
            }
            else {
                sbNextCursor.SetString(jsonResponse.stringOf(L"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
    //
    }