public function actionInstall($code, $shop_domain)
{
$store = Store::findOne(['domain' => $shop_domain]);
if (!$store) {
$store = new Store();
$store->domain = $shop_domain;
}
$client = $store->getClient();
if (!$client->validateSignature(Yii::$app->request->get())) {
throw new UnauthorizedHttpException(__('Error validate signature'));
}
$store->access_token = $client->requestAccessToken($code);
$store->save();
Yii::$app->session->set('shop_domain', $shop_domain);
return $this->redirect(['index']);
}