oauth 2.0 - google analytics custom plugin getting error invalid grant

Question

$client = new Google_Client();
            $client->setAuthConfigFile(plugin_dir_url( __FILE__ ) . '/client_secrets.json');
            $client->setRedirectUri('urn:ietf:wg:oauth:2.0:oob');
            $client->addScope(Google_Service_Analytics::ANALYTICS_READONLY);
            $client->setIncludeGrantedScopes(true);
            $client->setAccessType('offline');
            $client->revokeToken();
            $auth_url = $client->createAuthUrl();

using a popup authentication with javascript and then

if (!isset($_SESSION['access_token'])) {
        //$client->authenticate($_GET['code']);
      
        if($client->isAccessTokenExpired()){
            $client->authenticate($this->options['authenication_code']);
            
            $refreshToken = $client->getRefreshToken();
            $client->refreshToken( $refreshToken );
            $accessToken = $client->getAccessToken();
        }
        $_SESSION['access_token'] = $accessToken ? $accessToken : $refreshToken;
    }

After authenticating It is giving the result ,but while using another session to get the data it is showing errors different error in different circumstances no clear idea

Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_grant: Invalid code.'

Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_grant' if checked after some time

Google_Auth_Exception' with message 'Error fetching OAuth2 access token, message: 'invalid_grant: Code was already redeemed.' authenticated closed the browser and try with another browser

This is my 4th week on this but still unable to get things correctly.

I have gone through certain posts but no luck

1.Unable to refresh OAuth2 token in PHP, invalid grant

2.authenticate() accepts invalid tokens

3.Getting "invalid_grant" error on token refresh

4.Problem in refreshing access token

5.Why do I keep catching a Google_Auth_Exception for invalid_grant?

6.How to refresh token with Google API client?

7.Google OAuth2 - access token & refresh token -> invalid_grant/Code was already redeemed

8.Use OAuth Refresh Token to Obtain New Access Token - Google API

9.Using refresh_token for Google OAuth 2.0 returns http 400 bad request

and some more if I need to post more codes or anything else please let me know.

full code

Answer 1

Waitting for answers