(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.

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// 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..
Chilkat.JsonObject json = new Chilkat.JsonObject();
bool success = json.LoadFile("qa_data/tokens/twitter.json");

Chilkat.Rest rest = new Chilkat.Rest();
Chilkat.OAuth1 oauth1 = new Chilkat.OAuth1();

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(16);

rest.SetAuthOAuth1(oauth1,false);

bool bAutoReconnect = true;
success = rest.Connect("api.twitter.com",443,true,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

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

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

Chilkat.JsonObject jsonResponse = new Chilkat.JsonObject();
jsonResponse.EmitCompact = false;

// Get the 1st page of results using a cursor of "-1".
Chilkat.StringBuilder sbNextCursor = new Chilkat.StringBuilder();
sbNextCursor.SetString("-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("0",caseSensitive) == true) {
        // This will cause the loop to exit..
        bContinue = false;
    }
    else {
        // Adds or replaces the query param.
        rest.AddQueryParam("cursor",sbNextCursor.GetAsString());

        // Get the next page of follower IDs
        string resp = rest.FullRequestNoBody("GET","/1.1/followers/ids.json");
        if (rest.LastMethodSuccess != true) {
            Debug.WriteLine(rest.LastErrorText);
            return;
        }

        jsonResponse.Load(resp);

        if (rest.ResponseStatusCode != 200) {
            Debug.WriteLine(jsonResponse.Emit());
            return;
        }

        // Show the number of IDs returned in this 
        int numIds = jsonResponse.SizeOfArray("ids");
        Debug.WriteLine("Page " + Convert.ToString(pageNum) + ", Number of Ids: " + Convert.ToString(numIds));

        // Show the 1st 10 ids in this page.
        int i = 0;
        while (i < numIds) {
            jsonResponse.I = i;
            Debug.WriteLine("    " + Convert.ToString(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 = false;
        }
        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
//