How can I send product details to Stripe as metadata?

When a customer placed an order via the Stripe WooCommerce Extension, you may want to send some of those details to Stripe as metadata:

To do this, you can leverage the wc_stripe_payment_metadata filter.

For example, to send customer, order, and product data to Stripe as metadata, you can use this snippet:

/**
Add Stripe metadata along with WooCommerce purchase
*
@param $metadata
@param $order
@param $source
@return mixed
*/
function customstripepayment_metadata( $metadata, $order, $source ) {

/**
 * Get order data
 */
$order_data = $order->get_data();
$metadata[ __( 'Billing Company', 'woocommerce-gateway-stripe' ) ] = sanitize_text_field( $order_data['billing']['company'] );
$metadata[ __( 'Customer Name', 'woocommerce-gateway-stripe' ) ] = sanitize_text_field( $order_data['billing']['first_name'] . ' ' . $order_data['billing']['last_name'] );
$metadata[ __( 'Customer Phone', 'woocommerce-gateway-stripe' ) ] = sanitize_text_field( $order_data['billing']['phone'] );

/**
 * List products purchased
 */
$count = 1;
foreach( $order->get_items() as $item_id => $line_item ){
    $product = $line_item->get_product();
    $product_name = $product->get_name();
    $item_quantity = $line_item->get_quantity();
    $item_total = $line_item->get_total();
    $metadata['Line Item '.$count] = 'Product name: '.$product_name.' | Quantity: '.$item_quantity.' | Item total: '. number_format( $item_total, 2 );
    $count += 1;
}

return $metadata;
}
add_filter( 'wc_stripe_payment_metadata', 'customstripepayment_metadata', 10, 3 );