C
C
Update a Google Contact
See more Google APIs Examples
Demonstrates how to update a Google Contact.Chilkat C Downloads
#include <C_CkJsonObject.h>
#include <C_CkAuthGoogle.h>
#include <C_CkRest.h>
#include <C_CkStringBuilder.h>
#include <C_CkXml.h>
void ChilkatSample(void)
{
BOOL success;
HCkJsonObject jsonToken;
HCkAuthGoogle gAuth;
HCkRest rest;
BOOL bAutoReconnect;
HCkStringBuilder sbPath;
int numReplacements;
HCkStringBuilder sbResponseBody;
HCkXml xml;
const char *lastKnownEtag;
HCkStringBuilder 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 = CkJsonObject_Create();
success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/googleContacts.json");
if (success != TRUE) {
printf("Failed to load googleContacts.json\n");
CkJsonObject_Dispose(jsonToken);
return;
}
gAuth = CkAuthGoogle_Create();
CkAuthGoogle_putAccessToken(gAuth,CkJsonObject_stringOf(jsonToken,"access_token"));
rest = CkRest_Create();
// Connect using TLS.
bAutoReconnect = TRUE;
success = CkRest_Connect(rest,"www.google.com",443,TRUE,bAutoReconnect);
// Provide the authentication credentials (i.e. the access token)
CkRest_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
CkRest_AddHeader(rest,"GData-Version","3.0");
sbPath = CkStringBuilder_Create();
CkStringBuilder_Append(sbPath,"/m8/feeds/contacts/default/full/{contactId}");
// Get the contact having contactId = "5b6d64980b1ed462"
numReplacements = CkStringBuilder_Replace(sbPath,"{contactId}","5b6d64980b1ed462");
sbResponseBody = CkStringBuilder_Create();
success = CkRest_FullRequestNoBodySb(rest,"GET",CkStringBuilder_getAsString(sbPath),sbResponseBody);
if (success != TRUE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
// A successful response will have a status code equal to 200.
if (CkRest_getResponseStatusCode(rest) != 200) {
printf("response status code = %d\n",CkRest_getResponseStatusCode(rest));
printf("response status text = %s\n",CkRest_responseStatusText(rest));
printf("response header: %s\n",CkRest_responseHeader(rest));
printf("response body: %s\n",CkStringBuilder_getAsString(sbResponseBody));
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
return;
}
// If the 200 response was received, then the contacts XML is contained
// in the response body.
xml = CkXml_Create();
CkXml_LoadSb(xml,sbResponseBody,FALSE);
// Get the etag:
lastKnownEtag = CkXml_getAttrValue(xml,"gd:etag");
printf("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"/>
CkXml_UpdateChildContent(xml,"gd:name|gd:givenName","Joe");
CkXml_UpdateChildContent(xml,"gd:name|gd:familyName","Sample");
CkXml_UpdateChildContent(xml,"gd:name|gd:fullName","Joe Sample");
CkXml_UpdateChildContent(xml,"content","RIP Joe Sample, a great musician...");
CkXml_UpdateAttrAt(xml,"content",TRUE,"type","text");
CkXml_UpdateAttrAt(xml,"gd:extendedProperty",TRUE,"name","pet");
CkXml_UpdateAttrAt(xml,"gd:extendedProperty",TRUE,"value","hamster");
// Send the following:
// PUT /m8/feeds/contacts/default/full/{contactId}
// If-Match: {lastKnownEtag}
// GData-Version: 3.0
// Content-Type: application/atom+xml
CkRest_ClearAllHeaders(rest);
CkRest_AddHeader(rest,"If-Match",lastKnownEtag);
CkRest_AddHeader(rest,"GData-Version","3.0");
CkRest_AddHeader(rest,"Content-Type","application/atom+xml");
sbRequestBody = CkStringBuilder_Create();
CkXml_GetXmlSb(xml,sbRequestBody);
// The sbPath already contains the correct path..
success = CkRest_FullRequestSb(rest,"PUT",CkStringBuilder_getAsString(sbPath),sbRequestBody,sbResponseBody);
if (success != TRUE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
CkXml_Dispose(xml);
CkStringBuilder_Dispose(sbRequestBody);
return;
}
// A successful response will have a status code equal to 200.
if (CkRest_getResponseStatusCode(rest) != 200) {
printf("response status code = %d\n",CkRest_getResponseStatusCode(rest));
printf("response status text = %s\n",CkRest_responseStatusText(rest));
printf("response header: %s\n",CkRest_responseHeader(rest));
printf("response body: %s\n",CkStringBuilder_getAsString(sbResponseBody));
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
CkXml_Dispose(xml);
CkStringBuilder_Dispose(sbRequestBody);
return;
}
// If the 200 response was received, then the updated contact XML is contained
// in the response body.
CkXml_LoadSb(xml,sbResponseBody,FALSE);
printf("Response Body:\n");
printf("%s\n",CkXml_getXml(xml));
printf("Success.\n");
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbPath);
CkStringBuilder_Dispose(sbResponseBody);
CkXml_Dispose(xml);
CkStringBuilder_Dispose(sbRequestBody);
}