How do i refresh google token if expired? - php

Question

I am Creating YouTube Broadcast and it successfully working.
$client = new Google_Client();
$client->setClientId($OAUTH2_CLIENT_ID);
$client->setClientSecret($OAUTH2_CLIENT_SECRET);
$client->setScopes('https://www.googleapis.com/auth/youtube');
// $client->refreshToken($accessToken);
// // $client->refreshToken($accessToken);
// $newToken = $client->getAccessToken();
// echo "new token : ". $newToken;
$client->setAccessToken($accessToken);
try {
// Define service object for making API requests.
$service = new Google_Service_YouTube($client);
// Define the $liveBroadcast object, which will be uploaded as the request body.
$liveBroadcast = new Google_Service_YouTube_LiveBroadcast();
// Add 'contentDetails' object to the $liveBroadcast object.
$liveBroadcastContentDetails = new Google_Service_YouTube_LiveBroadcastContentDetails();
$liveBroadcastContentDetails->setEnableClosedCaptions(true);
$liveBroadcastContentDetails->setEnableContentEncryption(true);
$liveBroadcastContentDetails->setEnableDvr(true);
$liveBroadcastContentDetails->setRecordFromStart(true);
$liveBroadcastContentDetails->setStartWithSlate(true);
$liveBroadcast->setContentDetails($liveBroadcastContentDetails);
// Add 'snippet' object to the $liveBroadcast object.
$liveBroadcastSnippet = new Google_Service_YouTube_LiveBroadcastSnippet();
$liveBroadcastSnippet->setScheduledStartTime($start_date_time);
$liveBroadcastSnippet->setTitle($class_name);
$liveBroadcast->setSnippet($liveBroadcastSnippet);
// Add 'status' object to the $liveBroadcast object.
$liveBroadcastStatus = new Google_Service_YouTube_LiveBroadcastStatus();
$liveBroadcastStatus->setPrivacyStatus('unlisted');
$liveBroadcast->setStatus($liveBroadcastStatus);
$response = $service->liveBroadcasts->insert('snippet,contentDetails,status', $liveBroadcast);
return ($response->id);
} catch (Google_Service_Exception $e) {
print_r($e);
} catch (Google_Exception $e) {
print_r($e);
}
but after some time Authorization failed.
token has been expired and unable to create broadcast.
I tried to refresh token but not working please help.
https://developers.google.com/youtube/v3/live/docs/liveBroadcasts/insert?apix=true[][1]

Answer 1

First make sure to request offline access this will return a refresh token to you
function buildClient(){
$client = new Google_Client();
$client->setAccessType("offline"); // offline access. Will result in a refresh token
$client->setIncludeGrantedScopes(true); // incremental auth
$client->setAuthConfig(__DIR__ . '/client_secrets.json');
$client->addScope([YOUR SCOPES HERE]);
return $client;
}
The first time the user authorizes you should have a refresh token in returned. Store it some place.
$client->getRefreshToken()
Make sure that you load the refresh token inside the $client->setRefreshtoken($stored) so that it has it for the next part.
Then check if the access token has expired and add the refresh token back and force a fetch of a new access token.
if ($client->isAccessTokenExpired()) {
$client->fetchAccessTokenWithRefreshToken($client->getRefreshToken());
$client->setAccessToken($client->getAccessToken());
}