Google Classroom API 如何與WordPress結合

session_start();
require_once OnlineClass_DIR.'/vendor/autoload.php';

$client = new Google\Client();
$client->setAuthConfig(OnlineClass_DIR.'/tools/classroom/credentials.json');

//我們剛下載的OAuth的json檔位置

$client->addScope(Google_Service_Classroom::CLASSROOM_COURSES_READONLY);
$client->addScope(Google_Service_Classroom::CLASSROOM_PROFILE_EMAILS);
$client->addScope(Google_Service_Classroom::CLASSROOM_PROFILE_PHOTOS);
$client->addScope(Google_Service_Classroom::CLASSROOM_ROSTERS_READONLY);

//使用範例功能所需要Google提供的權限範圍

if(isset($_SESSION["google_token"])){
$client->setAccessToken($_SESSION["google_token"]);

//如果已經有token存在,則使用token做存取
}
if ($client->isAccessTokenExpired()) {

//如果token過期
if (isset($_GET['code'])) {
$code=$_GET['code'];
$token = $client->fetchAccessTokenWithAuthCode($code);
$_SESSION["google_token"]=$token;

//重新刷新token並存進session
}
else{
$redirect_uri = admin_url().'admin.php?page=online-class_main';
$client->setRedirectUri($redirect_uri);
$authUrl = $client->createAuthUrl();
wp_redirect($authUrl);

//導向到google授權頁面獲取授權後返回
}
}

$service = new Google\Service\Classroom($client);

//透過剛剛授權的client物件,獲取相對應的服務
$pageToken = NULL;
$courses = array();

do {
$params = array(
'pageSize' => 100,
'pageToken' => $pageToken
);
$response = $service->courses->listCourses($params);

//使用列出課程的範例
$courses = array_merge($courses, $response->courses);
$pageToken = $response->nextPageToken;
} while (!empty($pageToken));

if (count($courses) == 0) {
print "No courses found.\n";
}
else {
$html = "";
print "Courses:\n";
foreach ($courses as $course) {
printf("%s (%s)\n", $course->name, $course->id);
}
}