Error when creating folder in google drive - php

Question

I have search in th enet but i can't find the solutions. Please help. Below is the code.
<?php
require_once '../../vendor/autoload.php';
define('APPLICATION_NAME', 'Drive API PHP Quickstart');
define('CREDENTIALS_PATH', '~/.credentials/drive-php-quickstart.json');
define('CLIENT_SECRET_PATH', __DIR__ . '/client_secret.json');
define('SCOPES', implode(' ', array(
Google_Service_Drive::DRIVE_METADATA_READONLY)
));
$client = new Google_Client();
$client->setApplicationName(APPLICATION_NAME);
$client->setScopes(SCOPES);
$client->setScopes(array('https://www.googleapis.com/auth/drive', 'https://www.googleapis.com/auth/drive.apps.readonly', 'https://www.googleapis.com/auth/drive'));
$client->setAuthConfig(CLIENT_SECRET_PATH);
$client->setAccessType('offline');
$service = new Google_Service_Drive($client);
$fileMetadata = new Google_Service_Drive_DriveFile(array(
'name' => 'Test Folder',
'mimeType' => 'application/vnd.google-apps.folder'));
$file = $service->files->create($fileMetadata, array(
'fields' => 'id'));
printf("Folder ID: %s\n", $file->id);die();
?>
I can list all the files from the drive but I can't create a folder. What I'm missing? Below is the error. Can someone help me to solve this problem of mine. Thanks in advance.
PHP Fatal error: Uncaught Google_Service_Exception: {
"error": {
"errors": [
{
"domain": "global",
"reason": "required",
"message": "Login Required",
"locationType": "header",
"location": "Authorization"
}
],
"code": 401,
"message": "Login Required"
}
}

Answer 1

I hope this will assist you in solving your problem, I found your error here:
https://developers.google.com/drive/v3/web/handle-errors
To help you navigate to a solution, here is the snippet, hope this assists you in some way:
401: Invalid Credentials
Invalid authorization header. The access token you're using is either expired or invalid.
{
"error": {
"errors": [
{
"domain": "global",
"reason": "authError",
"message": "Invalid Credentials",
"locationType": "header",
"location": "Authorization",
}
],
"code": 401,
"message": "Invalid Credentials"
}
}
Suggested action: Refresh the access token using the long-lived refresh token. If this fails, direct the user through the OAuth flow, as described in Authorizing Your App with Google Drive.
If you want to know more about Authorizing your app with google drive, please refer to this site:
https://developers.google.com/drive/v3/web/about-auth
Hope you are able to find a solution with the resources provided.