Woocommerce Get Orders on Thank you page and pass data javascript snippet

Question

I am trying to read from thankyou.php orders and populate order_id, sku, price, quantity to a javascript snipper. The problem for me is how to \"catch\" the

Answer 1

UPDATED
As you are finding hard to locate functions.php file you can created a plugin. Create a PHP file as wh-thankyou-tracking.php under /wp-content/plugins/ and copy paste the below code to it and save it. And form admin panel Activate WH Order Tracking JS plugin

<?php
/**
 * Plugin Name: WH Order Tracking JS
 * Version: 0.1
 * Description: This plugin will add a JS tracking code to WooCommerce Thankyou page.
 * Author: Raunak Gupta
 * Author URI: https://www.webhat.in/
 * Text Domain: wh
 */
if (!defined('ABSPATH'))
{
    exit;
} // Exit if accessed directly

if (!class_exists('WooCommerce'))
{
    exit;
}// Exit if WooCommerce is not active

function wh_CustomReadOrder($order_id)
{
    //getting order object
    $order = wc_get_order($order_id);

    $items = $order->get_items();
    $product_js = [];

    foreach ($items as $item_id => $item_data)
    {
        //getting product object
        $_product = wc_get_product($item_data['item_meta']['_product_id'][0]);

        //getting all the product category
        $pro_cat_array = wp_get_post_terms($_product->ID, 'product_cat');

        $sku = $sku = $_product->get_sku();
        $qty = $item_data['item_meta']['_qty'][0];
        $pro_cat = implode(',', $pro_cat_array);
        $pro_brand = $_product->get_attribute('pa_brand'); //replace it with your brand attribute slug
        $pro_price = $item_data['item_meta']['_line_total'][0];

        //storing all the line item as a string form
        $product_js[] = '{id: "' . $sku . '",category:"' . $pro_cat . '",brand:"' . $pro_brand . '",price: "' . $pro_price . '"quantity:"' . $qty . '"}';
    }

    ?>
    <script type="text/javascript">
        order.purchase = {
            currency: 'EUR',
            transactionId: '<?= $order->id ?>',
            products: [<?= implode(',', $product_js) ?>]
        };
    </script>
    <?php
}

add_action('woocommerce_thankyou', 'wh_CustomReadOrder');

Hope this helps!