Custom Woocommerce Webhook based on Shipping Method

functions.php

<?php

/**
 * add_new_topic_hooks will add a new webhook topic hook. 
 * @param array $topic_hooks Esxisting topic hooks.
 */
function add_new_topic_hooks( $topic_hooks ) {

	// Array that has the topic as resource.event with arrays of actions that call that topic.
	$new_hooks = array(
		'action.wc_custom_new_order' => array(
			'wc_custom_new_order',
			),
		'action.wc_custom_order_update' => array(
			'wc_custom_order_update',
			)
		);

	return array_merge( $topic_hooks, $new_hooks );
}
add_filter( 'woocommerce_webhook_topic_hooks', 'add_new_topic_hooks' );

/**
 * add_new_topic_events will add new events for topic resources.
 * @param array $topic_events Existing valid events for resources.
 */
function add_new_topic_events( $topic_events ) {

	// New events to be used for resources.
	$new_events = array(
		'wc_custom_new_order',
		'wc_custom_order_update'
		);

	return array_merge( $topic_events, $new_events );
}
add_filter( 'woocommerce_valid_webhook_events', 'add_new_topic_events' );

/**
 * add_new_webhook_topics adds the new webhook to the dropdown list on the Webhook page.
 * @param array $topics Array of topics with the i18n proper name.
 */
function add_new_webhook_topics( $topics ) {

	// New topic array to add to the list, must match hooks being created.
	$new_topics = array( 
		'action.wc_custom_new_order' => __( 'Custom New Order', 'woocommerce' ),
		'action.wc_custom_order_update' => __( 'Custom Order Update', 'woocommerce' ),
		);

	return array_merge( $topics, $new_topics );
}
add_filter( 'woocommerce_webhook_topics', 'add_new_webhook_topics' );

/**
 * my_order_item_check will check an order when it is created through the checkout form,
 * if it has product ID 10603 as one of the items, it will fire off the action `custom_order_filter`
 * 
 * @param  int    $order_id    The ID of the order that was just created.
 * @param  array  $posted_data Array of all of the data that was posted through checkout form.
 * @param  object $order       The order object.
 * @return null
 */
function new_order_custom_hook( $order_id, $order ) {
	
				$order = wc_get_order( $order_id );	
				//$order = new WC_Order( $order_id );
   				
				if($order->get_shipping_method() == "Click and Collect") {
					return;
				}
				elseif($order->get_shipping_method() == "Standard Delivery") {

					do_action('wc_custom_new_order', $order_id,  $order );
				}
				
				else {

				}
				
}

function order_update_custom_hook( $order_id, $order ) {
	
				$order = wc_get_order( $order_id );	
				//$order = new WC_Order( $order_id );
   				
				if($order->get_shipping_method() == "Click and Collect") {
					return;
				}
				elseif($order->get_shipping_method() == "Standard Delivery") {

					do_action('wc_custom_order_update', $order_id,  $order );
				}
				
				else {

				}
				
}


add_action( 'woocommerce_new_order', 'new_order_custom_hook', 1, 2 );
add_action( 'save_post_shop_order', 'order_update_custom_hook', 10, 2 );

/**
 * Set the proper resource payload for a custom action webhook
 *
 * @param int $target_webhook_id
 * @param string $desired_resource 'order', 'product', 'coupon', or 'customer'
 */
function set_resource_for_webhook_payload_by_webhook_id($target_webhook_id, $desired_resource) {

    // Set the desired_resource payload for this webhook ('order', 'product', 'coupon', 'customer')
    add_filter('woocommerce_webhook_resource', function($resource, $webhook_id) use ($target_webhook_id, $desired_resource) {
        if($webhook_id == $target_webhook_id) {
            return $desired_resource;
        }
        return $resource;
    }, 10, 2);

    // Need to ensure our event (i.e., action) is seen as valid, as we've changed the default 'action.' prefix for the topic above
    add_filter('woocommerce_valid_webhook_events', function($valid_events) use ($target_webhook_id) {
        try {
            $topic = wc_get_webhook($target_webhook_id)->get_topic();

            list($resource, $event) = explode('.', $topic);

            if(!empty($event)) {
                $valid_events[] = $event;
            }

            return $valid_events;

        } catch (Exception $e) {
            return $valid_events;
        }
    }, 10);

}

// Change the Webhook ID to suit and data source of order, product, coupon or customer
add_action('init', function(){
    set_resource_for_webhook_payload_by_webhook_id( 11, 'order' );
	set_resource_for_webhook_payload_by_webhook_id( 13, 'order' );
}, 999);