Unicode C
Unicode C
Retrieve a Single Contact
See more Google APIs Examples
Demonstrates how to retrieve a single contact (by contactId) for the Google Contacts API.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 *emailAddress;
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 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 = "7b1c7b6409e718a0"
numReplacements = CkStringBuilderW_Replace(sbPath,L"{contactId}",L"7b1c7b6409e718a0");
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);
// See below for a sample response body.
CkXmlW_SaveXml(xml,L"qa_output/google_contact.xml");
// Now let's parse the XML...
wprintf(L"title: %s\n",CkXmlW_getChildContent(xml,L"title"));
emailAddress = CkXmlW_chilkatPath(xml,L"gd:email|(address)");
if (CkXmlW_getLastMethodSuccess(xml) == TRUE) {
wprintf(L"email address: %s\n",emailAddress);
}
// The response body XML looks something like this:
// <?xml version="1.0" encoding="UTF-8" ?>
// <entry gd:etag=""R3kzezVSLit7I2A9XRFaFE8DQAU."" xmlns="http://www.w3.org/2005/Atom" xmlns:batch="http://schemas.google.com/gdata/batch" xmlns:gContact="http://schemas.google.com/contact/2008" xmlns:gd="http://schemas.google.com/g/2005">
// <id>http://www.google.com/m8/feeds/contacts/support%40chilkatcloud.com/base/7b1c7b6409e718a0</id>
// <updated>2016-11-18T00:41:56.783Z</updated>
// <app:edited xmlns:app="http://www.w3.org/2007/app">2016-11-18T00:41:56.783Z</app:edited>
// <category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/contact/2008#contact" />
// <title>Chilkat Cloud</title>
// <link rel="http://schemas.google.com/contacts/2008/rel#photo" type="image/*" href="https://www.googleapis.com/m8/feeds/photos/media/support%40chilkatcloud.com/7b1c7b6409e718a0" gd:etag=""fgVhPls4Sit7I2BWHUlTWkQMKHUZKHkkaiw."" />
// <link rel="self" type="application/atom+xml" href="https://www.googleapis.com/m8/feeds/contacts/support%40chilkatcloud.com/full/7b1c7b6409e718a0" />
// <link rel="edit" type="application/atom+xml" href="https://www.googleapis.com/m8/feeds/contacts/support%40chilkatcloud.com/full/7b1c7b6409e718a0" />
// <gd:name>
// <gd:fullName>Chilkat Cloud</gd:fullName>
// <gd:givenName>Chilkat</gd:givenName>
// <gd:familyName>Cloud</gd:familyName>
// </gd:name>
// <gd:email rel="http://schemas.google.com/g/2005#other" address="support@chilkatcloud.com" primary="true" />
// <gContact:groupMembershipInfo deleted="false" href="http://www.google.com/m8/feeds/groups/support%40chilkatcloud.com/base/6" />
// </entry>
CkJsonObjectW_Dispose(jsonToken);
CkAuthGoogleW_Dispose(gAuth);
CkRestW_Dispose(rest);
CkStringBuilderW_Dispose(sbPath);
CkStringBuilderW_Dispose(sbResponseBody);
CkXmlW_Dispose(xml);
}