Google API Client “refresh token must be passed in or set as part of setAccessToken”

Question

I am currently facing a very strange problem, indeed I\'ve been following this very same guide (https://developers.google.com/google-apps/calendar/quickstart/php) from Googl

Answer 1

You need to serialize the accestoken when you write it to the credentialsPath.

 // Exchange authorization code for an access token.
    $accessToken = $client->authenticate($authCode);

    // Store the credentials to disk.
    if(!file_exists(dirname($credentialsPath))) {
        mkdir(dirname($credentialsPath), 0700, true);
    }
    $serArray = serialize($accessToken);
    file_put_contents($credentialsPath, $serArray);
    printf("Credentials saved to %s\n", $credentialsPath);

And when you read from the file you need to unserialize it.

if (file_exists($credentialsPath)) {
    $unserArray =  file_get_contents($credentialsPath);
    $accessToken = unserialize($unserArray);

}

Full function

function getClient() {
    $client = new Google_Client();
    // Set to name/location of your client_secrets.json file.
    $client->setAuthConfigFile('client_secret.json');
    // Set to valid redirect URI for your project.
    $client->setRedirectUri('http://localhost');
    $client->setApprovalPrompt('force');

    $client->addScope(Google_Service_YouTube::YOUTUBE_READONLY);
    $client->setAccessType('offline');

    // Load previously authorized credentials from a file.
    $credentialsPath = expandHomeDirectory(CREDENTIALS_PATH);


    if (file_exists($credentialsPath)) {
        $unserArray =  file_get_contents($credentialsPath);
        $accessToken = unserialize($unserArray);

    } else {
        // Request authorization from the user.
        $authUrl = $client->createAuthUrl();
        printf("Open the following link in your browser:\n%s\n", $authUrl);
        print 'Enter verification code: ';
        $authCode = trim(fgets(STDIN));

        // Exchange authorization code for an access token.
        $accessToken = $client->authenticate($authCode);

        // Store the credentials to disk.
        if(!file_exists(dirname($credentialsPath))) {
            mkdir(dirname($credentialsPath), 0700, true);
        }
        $serArray = serialize($accessToken);
        file_put_contents($credentialsPath, $serArray);
        printf("Credentials saved to %s\n", $credentialsPath);
    }

    $client->setAccessToken($accessToken);

    // Refresh the token if it's expired.
    if ($client->isAccessTokenExpired()) {
        $client->refreshToken($client->getRefreshToken());
        file_put_contents($credentialsPath, $client->getAccessToken());
    }
    return $client;
}