Missing parameter for register_rest_route

As of WordPress 5.5, if register_rest_route omits permission_callback WordPress generates a notice. You can update the iwp_woocommerce_shipment_rest() function in includes/woocommerce-shipment-tracking.php as below:

public function iwp_woocommerce_shipment_rest() {

        /* Initialize */
        register_rest_route( 'iwp/shipment-tracking/v1', '/initialize', array(
            'methods' => 'POST',
            'callback' => [$this, 'iwp_initialize'],
            'permission_callback' => '__return_true',
        ) );

        /* Submit */
        register_rest_route( 'iwp/shipment-tracking/v1', '/submit', array(
            'methods' => 'POST',
            'callback' => [$this, 'iwp_submit'],
            'permission_callback' => '__return_true',
        ) );

    }

More info about the notice

• This topic was modified 2 years, 7 months ago by Emre Erkan.