How can I send product details to Stripe as metadata?

When a customer places an order via the Stripe extension, you may want to send additional details to Stripe as metadata.

To do this, you can leverage one (or both) of the following filters:

• wc_stripe_intent_metadata if you’re using the new checkout experience.
• wc_stripe_payment_metadata if you’re using the legacy experience.

Here’s an example snippet:

add_filter( 'wc_stripe_intent_metadata', 'add_my_custom_stripe_metadata', 10, 2 );
add_filter( 'wc_stripe_payment_metadata', 'add_my_custom_stripe_metadata', 10, 3 );

function add_my_custom_stripe_metadata( $metadata, $order, $prepared_source = null ) {

	// Add name, quantity, and price for each line item.
	$count = 1;
	foreach ( $order->get_items() as $item_id => $line_item ) {
		$product = $line_item->get_product();
		$product_name = $product->get_title();
		$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;
	}

	// Add whatever custom key/value pair you want. :)
	$metadata['my_custom_key'] = 'An example custom value.';

	return $metadata;
}

Here’s how the metadata from that snippet appears in the Stripe dashboard: