Google_Auth_Exception: Error refreshing the OAuth2 token - php

Question

I am trying to fetch user's data from google plus using PHP.
I'm using below tutorial
https://www.youtube.com/watch?v=-65R420rIUA
Situation:
User login into my app android using google plus button i fetch the access token using googleSignInResult.googleSignInAccount.getIdToken()
I send this token to my server which runs php to fetch users data using google php client (as described in the video)
below is my code
try{
$gClient = new Google_Client();
$gClient->setApplicationName('pixyfi');
$gClient->setClientId($config['google']['appid']);
$gClient->setClientSecret($config['google']['secret']);
$token = json_encode(array("access_token"=>$lptoken,"refresh_token"=>$lptoken,"token_type"=>"Bearer","expires_in"=>3600,"id_token"=>$lptoken,"created"=>1320790426));
$gClient->setAccessToken($token);
$gClient->addScope(Google_Service_Plus::PLUS_ME);
$plus = new Google_Service_Plus($gClient);
$gpUserProfile = $plus->people->get('me');
echo "User Fetched as:".$gpUserProfile['id'];
}
catch(Google_Auth_Exception $x){
echo "Error:".$x;
}
But i am getting error:
Error:Google_Auth_Exception: Error refreshing the OAuth2 token, message: '{
"error" : "invalid_client"
}' in /var/www/html/api/auth/vendor/google/apiclient/src/Google/Auth/OAuth2.php:364
Could you please let me know what mistake i am making here?

Answer 1

this is some of my code which handles token thing. Implement this logic and let me know if you are still getting errors.
$row is is fetched from database and contains token information
$client->setAccessToken($row['token']);
if(time()>$row['created']+$row['expires_in'])
{
$client->refreshToken($row['refresh_token']);
$token=$client->getAccessToken();
DB::Query("-----UPDATE DB TOKEN INFO-------");
$client->setAccessToken($token);
}