(Perl) Get a Google Drive Access Token using a .p12 Private Key

Demonstrates how to get a Google Drive API access token using a .p12 private key.

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.

$gAuth = chilkat::CkAuthGoogle->new();

$pfx = chilkat::CkPfx->new();
$success = $pfx->LoadPfxFile("qa_data/googleApi/ChilkatTest-5ba79ce39459.p12","notasecret");
if ($success != 1) {
    print $pfx->lastErrorText() . "\r\n";
    exit;
}

$success = $gAuth->SetP12($pfx);
if ($success != 1) {
    print $gAuth->lastErrorText() . "\r\n";
    exit;
}

# Choose a scope.
$gAuth->put_Scope("https://www.googleapis.com/auth/drive");

# Request an access token that is valid for this many seconds.
$gAuth->put_ExpireNumSeconds(3600);

# If the application is requesting delegated access:
# The email address of the user for which the application is requesting delegated access,
# then set the email address here. (Otherwise leave it empty.)
$gAuth->put_SubEmailAddress('support@chilkatcloud.com');

$gAuth->put_EmailAddress('597922945226-00rb0ppfg0snd9jo6bhvd4v17jtj2d3a@developer.gserviceaccount.com');

# Connect to www.googleapis.com using TLS (TLS 1.2 is the default.)
# The Chilkat socket object is used so that the connection can be established
# through proxies or an SSH tunnel if desired.
$tlsSock = chilkat::CkSocket->new();
$success = $tlsSock->Connect("www.googleapis.com",443,1,5000);
if ($success != 1) {
    print $tlsSock->lastErrorText() . "\r\n";
    exit;
}

# Send the request to obtain the access token.
$success = $gAuth->ObtainAccessToken($tlsSock);
if ($success != 1) {
    print $gAuth->lastErrorText() . "\r\n";
    exit;
}

# Examine the access token:
print "Access Token: " . $gAuth->accessToken() . "\r\n";