woocommerce add to cart ajax code example

Example 1: add_to_cart how to call it woocommerce

add_action( 'template_redirect', 'quadlayers_add_to_cart_function' );

function quadlayers_add_to_cart_function () {

    $product_id = 1326;

    if ( WC()->cart->get_cart_contents_count() == 0 ) {

        WC()->cart->add_to_cart( $product_id );

    }

}

Example 2: woocommerce update mini cart ajax

add_filter( 'woocommerce_add_to_cart_fragments', function($fragments) {

    ob_start();
    ?>

    <div class="cart-contents">
        <?php echo WC()->cart->get_cart_contents_count(); ?>
    </div>

    <?php $fragments['div.cart-contents'] = ob_get_clean();

    return $fragments;

} );

add_filter( 'woocommerce_add_to_cart_fragments', function($fragments) {

    ob_start();
    ?>

    <div class="header-quickcart">
        <?php woocommerce_mini_cart(); ?>
    </div>

    <?php $fragments['div.header-quickcart'] = ob_get_clean();

    return $fragments;

} );