public function init() {
        add_action('usces_after_cart_instant', function () {
            $this->restRoutes = new Routes\Rest($this);
            $this->restRoutes->dispatcher->listen();
        }, 11);

        Config\Permalink::init();
        Views\Snackbar\Snackbar::init();
        (new Routes\Redirect($this))->init();
        $this->estore = new Error\Store();
        $this->estore->populate();

        Views\LoginPage::init();
        Views\Header::init();
        if (Config\Options::useReact()) {
            (new React\CartPage\CartPage($this))->init();
            (new React\ItemPage\ItemPage($this))->init();
            (new React\WishlistPage\WishlistPage($this))->init();
        } else {
            (new Views\CartPage\CartPage($this))->init();
            (new Views\ItemPage\ItemPage($this))->init();
            (new Views\WishlistPage\WishlistPage($this))->init();
        }

        $cptmc = new CptmClient(
            'AWW001',
            WCEXWL_VERSION,
            WCEXWL_PLUGIN_FILE,
            'https://api.aivec.co.jp/cptmp/v1/getProvidersList/AWW001'
        );
        $cptmc->init();
        (new SettingsPage($cptmc, 'WCEX Wishlist'))->createProviderSelectSettingsPage();

        // global functions
        require_once(__DIR__ . '/api-functions.php');
        require_once(__DIR__ . '/template-functions.php');

        // the following is for deprecated functionality
        require_once(__DIR__ . '/Deprecated/filters.php');
        require_once(__DIR__ . '/Deprecated/functions.php');
    }