Uncaught exception 'Google_Exception' with message 'Cant add services after having authenticated - php

Question

I am trying to add google spreadsheet using google drive api in php. But I am getting the following error after authentication.
Uncaught exception 'Google_Exception' with message 'Cant add services after having authenticated' in /var/www/html/spreadsheet/google/src/Google_Client.php:119 Stack trace: #0 /var/www/html/spreadsheet/google/src/contrib/Google_DriveService.php(1046): Google_Client->addService('drive', 'v2') #1 /var/www/html/spreadsheet/index.php(20): Google_DriveService->__construct(Object(Google_Client)) #2 {main} thrown in /var/www/html/spreadsheet/google/src/Google_Client.php on line 119
My code:
<?php
require '/var/www/html/spreadsheet/google/src/Google_Client.php';
require '/var/www/html/spreadsheet/google/src/contrib/Google_DriveService.php';
require '/var/www/html/spreadsheet/google/src/contrib/Google_Oauth2Service.php';
$client = new Google_Client();
$client->setClientId('xxxxx-vdbo5lga3sq7g8q4g8adgqh72m0ng8ef.apps.googleusercontent.com');
$client->setClientSecret('BCGuyCPHwNflflBU5jDQ25LQ');
$client->setRedirectUri('http://localhost/spreadsheet/index.php');
$client->setScopes(array('https://www.googleapis.com/auth/drive'));
if (isset($_GET['code']) || (isset($_SESSION['access_token']) && $_SESSION['access_token'])) {
if (isset($_GET['code'])) {
$client->authenticate($_GET['code']);
$_SESSION['access_token'] = $client->getAccessToken();
} else
$client->setAccessToken($_SESSION['access_token']);
$service = new Google_DriveService($client);
//Inserting a file
$file = new Google_DriveFile();
$file->setTitle('Mysheet');
$file->setDescription('My first sheet through php');
$file->setMimeType('application/vnd.google-apps.spreadsheet');
$createdFile = $service->files->insert($file, array(
'mimeType' => 'application/vnd.google-apps.spreadsheet',
'uploadType' => 'multipart'
));
print_r($createdFile);
} else {
$authUrl = $client->createAuthUrl();
header('Location: ' . $authUrl);
exit();
}
?>

Answer 1

You have to create a new service, before you authenticate the Client:
<?php
// ...
$client = new Google_Client();
$client->setClientId('clientID');
$client->setClientSecret('clientSecret');
$client->setRedirectUri('redirectURI');
$client->setScopes(array('https://www.googleapis.com/auth/drive'));
// create Drive service before authentication
$service = new Google_DriveService($client);
if (isset($_GET['code']) || (isset($_SESSION['access_token']) && $_SESSION['access_token'])) {
if (isset($_GET['code'])) {
$client->authenticate($_GET['code']);
$_SESSION['access_token'] = $client->getAccessToken();
} else {
$client->setAccessToken($_SESSION['access_token']);
}
// ...
} else {
// ...
}
Btw: See the simplefileupload example in the google-api-php-client repo.