(Perl) Google Contacts - Delete a Contact

Demonstrates how to delete a Google Contact.

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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 = chilkat::CkJsonObject->new();
$success = $jsonToken->LoadFile("qa_data/tokens/googleContacts.json");
if ($success != 1) {
    print "Failed to load googleContacts.json" . "\r\n";
    exit;
}

$gAuth = chilkat::CkAuthGoogle->new();
$gAuth->put_AccessToken($jsonToken->stringOf("access_token"));

$rest = chilkat::CkRest->new();

# Connect using TLS.
$bAutoReconnect = 1;
$success = $rest->Connect("www.google.com",443,1,$bAutoReconnect);

# Provide the authentication credentials (i.e. the access token)
$rest->SetAuthGoogle($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

$rest->AddHeader("GData-Version","3.0");

$sbPath = chilkat::CkStringBuilder->new();
$sbPath->Append("/m8/feeds/contacts/default/full/{contactId}");
# Get the contact having contactId = "5b6d64980b1ed462"
$numReplacements = $sbPath->Replace("{contactId}","5b6d64980b1ed462");

$sbResponseBody = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestNoBodySb("GET",$sbPath->getAsString(),$sbResponseBody);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# A successful response will have a status code equal to 200.
if ($rest->get_ResponseStatusCode() != 200) {
    print "response status code = " . $rest->get_ResponseStatusCode() . "\r\n";
    print "response status text = " . $rest->responseStatusText() . "\r\n";
    print "response header: " . $rest->responseHeader() . "\r\n";
    print "response body: " . $sbResponseBody->getAsString() . "\r\n";
    exit;
}

# If the 200 response was received, then the contacts XML is contained
# in the response body.
$xml = chilkat::CkXml->new();
$xml->LoadSb($sbResponseBody,0);

print $xml->getXml() . "\r\n";
print "-------------------" . "\r\n";

# Get the etag:
$lastKnownEtag = $xml->getAttrValue("gd:etag");
print "lastKnownEtag = " . $lastKnownEtag . "\r\n";
print "-------------------" . "\r\n";

# To delete, send the following:

# 	DELETE /m8/feeds/contacts/default/full/{contactId}
# 	If-Match: {lastKnownEtag}
# 	GData-Version: 3.0

$rest->ClearAllHeaders();
$rest->AddHeader("If-Match",$lastKnownEtag);
$rest->AddHeader("GData-Version","3.0");

# The sbPath already contains the correct path..
$success = $rest->FullRequestNoBodySb("DELETE",$sbPath->getAsString(),$sbResponseBody);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# A successful response will have a status code equal to 200.
if ($rest->get_ResponseStatusCode() != 200) {
    print "response status code = " . $rest->get_ResponseStatusCode() . "\r\n";
    print "response status text = " . $rest->responseStatusText() . "\r\n";
    print "response header: " . $rest->responseHeader() . "\r\n";
    print "response body: " . $sbResponseBody->getAsString() . "\r\n";
    print "request header: " . $rest->lastRequestHeader() . "\r\n";
    exit;
}

# The response body for a successful DELETE is empty.
print "Response Body: (should be empty)" . "\r\n";
print $sbResponseBody->getAsString() . "\r\n";
print "Success." . "\r\n";