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(Unicode C) Google Contacts - Delete a ContactDemonstrates how to delete a Google Contact.
#include <C_CkJsonObjectW.h> #include <C_CkAuthGoogleW.h> #include <C_CkRestW.h> #include <C_CkStringBuilderW.h> #include <C_CkXmlW.h> void ChilkatSample(void) { HCkJsonObjectW jsonToken; BOOL success; HCkAuthGoogleW gAuth; HCkRestW rest; BOOL bAutoReconnect; HCkStringBuilderW sbPath; int numReplacements; HCkStringBuilderW sbResponseBody; HCkXmlW xml; const wchar_t *lastKnownEtag; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // -------------------------------------------------------------------------------------------------------- // Note: The code for setting up the Chilkat REST object and making the initial connection can be done once. // Once connected, the REST object may be re-used for many REST API calls. // (It's a good idea to put the connection setup code in a separate function/subroutine.) // -------------------------------------------------------------------------------------------------------- // It is assumed we previously obtained an OAuth2 access token. // This example loads the JSON access token file // saved by this example: Get Google Contacts OAuth2 Access Token jsonToken = CkJsonObjectW_Create(); success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/googleContacts.json"); if (success != TRUE) { wprintf(L"Failed to load googleContacts.json\n"); CkJsonObjectW_Dispose(jsonToken); return; } gAuth = CkAuthGoogleW_Create(); CkAuthGoogleW_putAccessToken(gAuth,CkJsonObjectW_stringOf(jsonToken,L"access_token")); rest = CkRestW_Create(); // Connect using TLS. bAutoReconnect = TRUE; success = CkRestW_Connect(rest,L"www.google.com",443,TRUE,bAutoReconnect); // Provide the authentication credentials (i.e. the access token) CkRestW_SetAuthGoogle(rest,gAuth); // ---------------------------------------------- // OK, the REST connection setup is completed.. // ---------------------------------------------- // To update a contact, we'll first get the contact information // to get the etag. // To retrieve the contact, send the following: // GET /m8/feeds/contacts/default/full/{contactId} // GData-Version: 3.0 CkRestW_AddHeader(rest,L"GData-Version",L"3.0"); sbPath = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbPath,L"/m8/feeds/contacts/default/full/{contactId}"); // Get the contact having contactId = "5b6d64980b1ed462" numReplacements = CkStringBuilderW_Replace(sbPath,L"{contactId}",L"5b6d64980b1ed462"); sbResponseBody = CkStringBuilderW_Create(); success = CkRestW_FullRequestNoBodySb(rest,L"GET",CkStringBuilderW_getAsString(sbPath),sbResponseBody); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkJsonObjectW_Dispose(jsonToken); CkAuthGoogleW_Dispose(gAuth); CkRestW_Dispose(rest); CkStringBuilderW_Dispose(sbPath); CkStringBuilderW_Dispose(sbResponseBody); return; } // A successful response will have a status code equal to 200. if (CkRestW_getResponseStatusCode(rest) != 200) { wprintf(L"response status code = %d\n",CkRestW_getResponseStatusCode(rest)); wprintf(L"response status text = %s\n",CkRestW_responseStatusText(rest)); wprintf(L"response header: %s\n",CkRestW_responseHeader(rest)); wprintf(L"response body: %s\n",CkStringBuilderW_getAsString(sbResponseBody)); CkJsonObjectW_Dispose(jsonToken); CkAuthGoogleW_Dispose(gAuth); CkRestW_Dispose(rest); CkStringBuilderW_Dispose(sbPath); CkStringBuilderW_Dispose(sbResponseBody); return; } // If the 200 response was received, then the contacts XML is contained // in the response body. xml = CkXmlW_Create(); CkXmlW_LoadSb(xml,sbResponseBody,FALSE); wprintf(L"%s\n",CkXmlW_getXml(xml)); wprintf(L"-------------------\n"); // Get the etag: lastKnownEtag = CkXmlW_getAttrValue(xml,L"gd:etag"); wprintf(L"lastKnownEtag = %s\n",lastKnownEtag); wprintf(L"-------------------\n"); // To delete, send the following: // DELETE /m8/feeds/contacts/default/full/{contactId} // If-Match: {lastKnownEtag} // GData-Version: 3.0 CkRestW_ClearAllHeaders(rest); CkRestW_AddHeader(rest,L"If-Match",lastKnownEtag); CkRestW_AddHeader(rest,L"GData-Version",L"3.0"); // The sbPath already contains the correct path.. success = CkRestW_FullRequestNoBodySb(rest,L"DELETE",CkStringBuilderW_getAsString(sbPath),sbResponseBody); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkJsonObjectW_Dispose(jsonToken); CkAuthGoogleW_Dispose(gAuth); CkRestW_Dispose(rest); CkStringBuilderW_Dispose(sbPath); CkStringBuilderW_Dispose(sbResponseBody); CkXmlW_Dispose(xml); return; } // A successful response will have a status code equal to 200. if (CkRestW_getResponseStatusCode(rest) != 200) { wprintf(L"response status code = %d\n",CkRestW_getResponseStatusCode(rest)); wprintf(L"response status text = %s\n",CkRestW_responseStatusText(rest)); wprintf(L"response header: %s\n",CkRestW_responseHeader(rest)); wprintf(L"response body: %s\n",CkStringBuilderW_getAsString(sbResponseBody)); wprintf(L"request header: %s\n",CkRestW_lastRequestHeader(rest)); CkJsonObjectW_Dispose(jsonToken); CkAuthGoogleW_Dispose(gAuth); CkRestW_Dispose(rest); CkStringBuilderW_Dispose(sbPath); CkStringBuilderW_Dispose(sbResponseBody); CkXmlW_Dispose(xml); return; } // The response body for a successful DELETE is empty. wprintf(L"Response Body: (should be empty)\n"); wprintf(L"%s\n",CkStringBuilderW_getAsString(sbResponseBody)); wprintf(L"Success.\n"); CkJsonObjectW_Dispose(jsonToken); CkAuthGoogleW_Dispose(gAuth); CkRestW_Dispose(rest); CkStringBuilderW_Dispose(sbPath); CkStringBuilderW_Dispose(sbResponseBody); CkXmlW_Dispose(xml); } |
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