Unicode C
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in a single response, this example will use cursors to page through the followers.This example is deprecated and no longer valid.
Chilkat Unicode C Downloads
#include <C_CkJsonObjectW.h>
#include <C_CkRestW.h>
#include <C_CkOAuth1W.h>
#include <C_CkStringBuilderW.h>
void ChilkatSample(void)
{
BOOL success;
HCkJsonObjectW json;
HCkRestW rest;
HCkOAuth1W oauth1;
BOOL bAutoReconnect;
HCkJsonObjectW jsonResponse;
HCkStringBuilderW sbNextCursor;
int pageNum;
BOOL caseSensitive;
BOOL bContinue;
const wchar_t *resp;
int numIds;
int i;
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..
json = CkJsonObjectW_Create();
success = CkJsonObjectW_LoadFile(json,L"qa_data/tokens/twitter.json");
rest = CkRestW_Create();
oauth1 = CkOAuth1W_Create();
CkOAuth1W_putConsumerKey(oauth1,L"TWITTER_CONSUMER_KEY");
CkOAuth1W_putConsumerSecret(oauth1,L"TWITTER_CONSUMER_SECRET");
CkOAuth1W_putToken(oauth1,CkJsonObjectW_stringOf(json,L"oauth_token"));
CkOAuth1W_putTokenSecret(oauth1,CkJsonObjectW_stringOf(json,L"oauth_token_secret"));
CkOAuth1W_putSignatureMethod(oauth1,L"HMAC-SHA1");
CkOAuth1W_GenNonce(oauth1,16);
CkRestW_SetAuthOAuth1(rest,oauth1,FALSE);
bAutoReconnect = TRUE;
success = CkRestW_Connect(rest,L"api.twitter.com",443,TRUE,bAutoReconnect);
if (success != TRUE) {
wprintf(L"%s\n",CkRestW_lastErrorText(rest));
CkJsonObjectW_Dispose(json);
CkRestW_Dispose(rest);
CkOAuth1W_Dispose(oauth1);
return;
}
// This ends the initial setup...
// ----------------------------------------------------------------------
// This Twitter user has about 77.5K followers..
CkRestW_AddQueryParam(rest,L"screen_name",L"MarcusMiller959");
jsonResponse = CkJsonObjectW_Create();
CkJsonObjectW_putEmitCompact(jsonResponse,FALSE);
// Get the 1st page of results using a cursor of "-1".
sbNextCursor = CkStringBuilderW_Create();
CkStringBuilderW_SetString(sbNextCursor,L"-1");
pageNum = 1;
caseSensitive = FALSE;
bContinue = TRUE;
// Get a maximum of 5 pages (of 5000 ids each).
while (bContinue == TRUE) {
if (CkStringBuilderW_ContentsEqual(sbNextCursor,L"0",caseSensitive) == TRUE) {
// This will cause the loop to exit..
bContinue = FALSE;
}
else {
// Adds or replaces the query param.
CkRestW_AddQueryParam(rest,L"cursor",CkStringBuilderW_getAsString(sbNextCursor));
// Get the next page of follower IDs
resp = CkRestW_fullRequestNoBody(rest,L"GET",L"/1.1/followers/ids.json");
if (CkRestW_getLastMethodSuccess(rest) != TRUE) {
wprintf(L"%s\n",CkRestW_lastErrorText(rest));
CkJsonObjectW_Dispose(json);
CkRestW_Dispose(rest);
CkOAuth1W_Dispose(oauth1);
CkJsonObjectW_Dispose(jsonResponse);
CkStringBuilderW_Dispose(sbNextCursor);
return;
}
CkJsonObjectW_Load(jsonResponse,resp);
if (CkRestW_getResponseStatusCode(rest) != 200) {
wprintf(L"%s\n",CkJsonObjectW_emit(jsonResponse));
CkJsonObjectW_Dispose(json);
CkRestW_Dispose(rest);
CkOAuth1W_Dispose(oauth1);
CkJsonObjectW_Dispose(jsonResponse);
CkStringBuilderW_Dispose(sbNextCursor);
return;
}
// Show the number of IDs returned in this
numIds = CkJsonObjectW_SizeOfArray(jsonResponse,L"ids");
wprintf(L"Page %d, Number of Ids: %d\n",pageNum,numIds);
// Show the 1st 10 ids in this page.
i = 0;
while (i < numIds) {
CkJsonObjectW_putI(jsonResponse,i);
wprintf(L" %d: %s\n",i,CkJsonObjectW_stringOf(jsonResponse,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 {
CkStringBuilderW_SetString(sbNextCursor,CkJsonObjectW_stringOf(jsonResponse,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
//
CkJsonObjectW_Dispose(json);
CkRestW_Dispose(rest);
CkOAuth1W_Dispose(oauth1);
CkJsonObjectW_Dispose(jsonResponse);
CkStringBuilderW_Dispose(sbNextCursor);
}