Fatal error: Uncaught exception 'Google\Spreadsheet\UnauthorizedException' with message 'Access token is invalid' or Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_grant: i''

[nekromoff]

I have this problem, I always get this:

{"access_token":"ya29.3AAc-8mXbyHSaOFS_TJJX4dkrvH92eY956HV5ZyR1mR6gTnQnr-jPzZkDEa0rJl9pOaR4lJ3DdGJuQ","token_type":"Bearer","expires_in":3600,"created":1418520786}
Fatal error: Uncaught exception 'Google\Spreadsheet\UnauthorizedException' with message 'Access token is invalid' in /whatever/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php:240 Stack trace: #0 /whatever/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php(131): Google\Spreadsheet\DefaultServiceRequest->execute(Resource id #46) #1 /whatever/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/SpreadsheetService.php(38): Google\Spreadsheet\DefaultServiceRequest->get('feeds/spreadshe...') #2 /whatever/sample.php(27): Google\Spreadsheet\SpreadsheetService->getSpreadsheets() #3 {main} thrown in /whatever/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php on line 240

scopes:
$client->setScopes(array('https://spreadsheets.google.com/feeds','https://www.googleapis.com/auth/drive','https://docs.google.com/feeds/'));

spreadsheet access code:
$serviceRequest = new Google\Spreadsheet\DefaultServiceRequest($token['access_token']);
Google\Spreadsheet\ServiceRequestFactory::setInstance($serviceRequest);
$spreadsheetService = new Google\Spreadsheet\SpreadsheetService();
$spreadsheetFeed = $spreadsheetService->getSpreadsheets();

sometimes i get this instead:
Fatal error: Uncaught exception 'Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_grant: i'' in /whatever/vendor/google/apiclient/src/Google/Auth/OAuth2.php:127 Stack trace: #0 /whatever/vendor/google/apiclient/src/Google/Client.php(130): Google_Auth_OAuth2->authenticate('4/gGfFncBJOs5id...') #1 /whatever/sample.php(19): Google_Client->authenticate('4/gGfFncBJOs5id...') #2 {main} thrown in /whatever/vendor/google/apiclient/src/Google/Auth/OAuth2.php on line 127

[asimlqt]

There seems to be something wrong with the access token. Can you try and generate one using the following code and let me know if you still have an issue.

https://github.com/asimlqt/php-google-oauth

Note: The access token is only valid for one hour.

[Abban]

@nekromoff I ran into the same problem, the issue is the Google api saves the access token as encoded json. I fixed it with:

$token = json_decode($client->getAccessToken());
$serviceRequest = new DefaultServiceRequest($token->access_token);
ServiceRequestFactory::setInstance($serviceRequest);

[oxidand]

I have the same issue, access token generated with official PHP API from Google is not working with this library
I already tried to decode the token, but nothing have changed
Drive API is enabled in my dev console

Fatal error: Uncaught exception 'Google\Spreadsheet\UnauthorizedException' with message 'Access token is invalid' in /site/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php:250

Stack trace:

#0 /site/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php(132): Google\Spreadsheet\DefaultServiceRequest->execute(Resource id #35)

#1 /site/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/SpreadsheetService.php(38): Google\Spreadsheet\DefaultServiceRequest->get('feeds/spreadshe...')

#2 /site/index.php(51): Google\Spreadsheet\SpreadsheetService->getSpreadsheets()

#3 {main}
thrown in /site/vendor/asimlqt/php-google-spreadsheet-client/src/Google/Spreadsheet/DefaultServiceRequest.php on line 250

Access token seems to be valid, because I can access my drive using official Google API,
but I need to change spreadsheets, so I'd like to use this lib

[nekromoff]

this works for me (using .p12 key):

session_start();

define('GOOGLE_CLIENT_ID','');
define('GOOGLE_CLIENT_EMAIL','');
define('GOOGLE_SPREADSHEETS_SCOPE','https://spreadsheets.google.com/feeds');
define('GOOGLE_APPLICATION_NAME','whatever');
define('GOOGLE_KEY_FILE','xxxxxxxxxxxxxx.p12'); // pass for key: notasecret

function getToken()
{
    $client = new Google_Client();
    $client->setApplicationName(GOOGLE_APPLICATION_NAME);
    $client->setClientId(GOOGLE_CLIENT_ID);

    $key = file_get_contents(GOOGLE_KEY_FILE);
    $cred = new Google_Auth_AssertionCredentials(
        GOOGLE_CLIENT_EMAIL,
        array(GOOGLE_SPREADSHEETS_SCOPE),
        $key
    );

    $client->setAssertionCredentials($cred);

    if($client->getAuth()->isAccessTokenExpired()) {
        $client->getAuth()->refreshTokenWithAssertion($cred);
    }

    $service_token = json_decode($client->getAccessToken());
    return $service_token->access_token;
}

require("vendor/autoload.php");

use Google\Spreadsheet\DefaultServiceRequest;
use Google\Spreadsheet\ServiceRequestFactory;

$_SESSION['access_token']=getToken();

$serviceRequest = new Google\Spreadsheet\DefaultServiceRequest($_SESSION['access_token']);
Google\Spreadsheet\ServiceRequestFactory::setInstance($serviceRequest);
$spreadsheetService = new Google\Spreadsheet\SpreadsheetService();
$spreadsheetFeed = $spreadsheetService->getSpreadsheets();
'''

[oxidand]

https://spreadsheets.google.com/feeds was the solution. I tried so many different scopes from Google Dev Docs, but this one wasn't listed there. Even with full access lib can't access spreadsheets. So it solved the issue ;)