Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(Unicode C) Paging User Photos with CursorDemonstrates how to iterate over the pages of user photos using a cursor.
#include <C_CkOAuth2W.h> #include <C_CkRestW.h> #include <C_CkJsonObjectW.h> void ChilkatSample(void) { HCkOAuth2W oauth2; HCkRestW rest; BOOL success; const wchar_t *responseJson; HCkJsonObjectW json; const wchar_t *afterCursor; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // This example assumes a previously obtained an access token oauth2 = CkOAuth2W_Create(); CkOAuth2W_putAccessToken(oauth2,L"FACEBOOK-ACCESS-TOKEN"); rest = CkRestW_Create(); // Connect to Facebook. success = CkRestW_Connect(rest,L"graph.facebook.com",443,TRUE,TRUE); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkOAuth2W_Dispose(oauth2); CkRestW_Dispose(rest); return; } // Provide the authentication credentials (i.e. the access key) CkRestW_SetAuthOAuth2(rest,oauth2); // Indicate that we only want the photos the user has personally uploaded. CkRestW_AddQueryParam(rest,L"type",L"uploaded"); // We could limit the number of photos per page using the "limit" field. CkRestW_AddQueryParam(rest,L"limit",L"20"); // Get the 1st page of photos. (Not the actual image data, but the information about each photo.) // See https://developers.facebook.com/docs/graph-api/reference/user/photos/ for more information. responseJson = CkRestW_fullRequestNoBody(rest,L"GET",L"/v2.7/me/photos"); if (CkRestW_getLastMethodSuccess(rest) != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkOAuth2W_Dispose(oauth2); CkRestW_Dispose(rest); return; } json = CkJsonObjectW_Create(); CkJsonObjectW_putEmitCompact(json,FALSE); CkJsonObjectW_Load(json,responseJson); wprintf(L"%s\n",CkJsonObjectW_emit(json)); // // See Parsing the Facebook User Photos for code showing how to parse the JSON photos content. // // Get the "after" cursor. afterCursor = CkJsonObjectW_stringOf(json,L"paging.cursors.after"); while (CkJsonObjectW_getLastMethodSuccess(json) == TRUE) { wprintf(L"after cursor: %s\n",afterCursor); // Prepare for getting the next page of photos. // We can continue using the same REST object. // If already connected, we'll continue using the existing connection. // Otherwise, a new connection will automatically be made if needed. CkRestW_ClearAllQueryParams(rest); CkRestW_AddQueryParam(rest,L"type",L"uploaded"); CkRestW_AddQueryParam(rest,L"limit",L"20"); CkRestW_AddQueryParam(rest,L"after",afterCursor); responseJson = CkRestW_fullRequestNoBody(rest,L"GET",L"/v2.7/me/photos"); if (CkRestW_getLastMethodSuccess(rest) != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkOAuth2W_Dispose(oauth2); CkRestW_Dispose(rest); CkJsonObjectW_Dispose(json); return; } CkJsonObjectW_Load(json,responseJson); // See Parsing the Facebook User Photos for code showing how to parse the JSON photos content. wprintf(L"%s\n",CkJsonObjectW_emit(json)); // Get the cursor for the next page. afterCursor = CkJsonObjectW_stringOf(json,L"paging.cursors.after"); } wprintf(L"No more pages of photos.\n"); CkOAuth2W_Dispose(oauth2); CkRestW_Dispose(rest); CkJsonObjectW_Dispose(json); } |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.