Unicode C
Unicode C
Update a Google Contact
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Demonstrates how to update a Google Contact.Chilkat Unicode C Downloads
#include <C_CkJsonObjectW.h>
#include <C_CkAuthGoogleW.h>
#include <C_CkRestW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkXmlW.h>
void ChilkatSample(void)
{
BOOL success;
HCkJsonObjectW jsonToken;
HCkAuthGoogleW gAuth;
HCkRestW rest;
BOOL bAutoReconnect;
HCkStringBuilderW sbPath;
int numReplacements;
HCkStringBuilderW sbResponseBody;
HCkXmlW xml;
const wchar_t *lastKnownEtag;
HCkStringBuilderW sbRequestBody;
success = FALSE;
// 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,
// then we'll make changes to the XML and then PUT the update.
// 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);
// Get the etag:
lastKnownEtag = CkXmlW_getAttrValue(xml,L"gd:etag");
wprintf(L"lastKnownEtag = %s\n",lastKnownEtag);
// Update the XML.
// We're going to add or update with the following information:
// <gd:name>
// <gd:givenName>Joe</gd:givenName>
// <gd:familyName>Sample</gd:familyName>
// <gd:fullName>Joe Sample</gd:fullName>
// </gd:name>
// <content type="text">RIP Joe Sample, a great musician...</content>
// <gd:extendedProperty name="pet" value="hamster"/>
CkXmlW_UpdateChildContent(xml,L"gd:name|gd:givenName",L"Joe");
CkXmlW_UpdateChildContent(xml,L"gd:name|gd:familyName",L"Sample");
CkXmlW_UpdateChildContent(xml,L"gd:name|gd:fullName",L"Joe Sample");
CkXmlW_UpdateChildContent(xml,L"content",L"RIP Joe Sample, a great musician...");
CkXmlW_UpdateAttrAt(xml,L"content",TRUE,L"type",L"text");
CkXmlW_UpdateAttrAt(xml,L"gd:extendedProperty",TRUE,L"name",L"pet");
CkXmlW_UpdateAttrAt(xml,L"gd:extendedProperty",TRUE,L"value",L"hamster");
// Send the following:
// PUT /m8/feeds/contacts/default/full/{contactId}
// If-Match: {lastKnownEtag}
// GData-Version: 3.0
// Content-Type: application/atom+xml
CkRestW_ClearAllHeaders(rest);
CkRestW_AddHeader(rest,L"If-Match",lastKnownEtag);
CkRestW_AddHeader(rest,L"GData-Version",L"3.0");
CkRestW_AddHeader(rest,L"Content-Type",L"application/atom+xml");
sbRequestBody = CkStringBuilderW_Create();
CkXmlW_GetXmlSb(xml,sbRequestBody);
// The sbPath already contains the correct path..
success = CkRestW_FullRequestSb(rest,L"PUT",CkStringBuilderW_getAsString(sbPath),sbRequestBody,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);
CkStringBuilderW_Dispose(sbRequestBody);
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);
CkXmlW_Dispose(xml);
CkStringBuilderW_Dispose(sbRequestBody);
return;
}
// If the 200 response was received, then the updated contact XML is contained
// in the response body.
CkXmlW_LoadSb(xml,sbResponseBody,FALSE);
wprintf(L"Response Body:\n");
wprintf(L"%s\n",CkXmlW_getXml(xml));
wprintf(L"Success.\n");
CkJsonObjectW_Dispose(jsonToken);
CkAuthGoogleW_Dispose(gAuth);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbPath);
CkStringBuilderW_Dispose(sbResponseBody);
CkXmlW_Dispose(xml);
CkStringBuilderW_Dispose(sbRequestBody);
}