woo rest api on a multisite

i followed the rest api documentation and manage everything all i wanted is how to use this getting all subiste orders. example, i have 5 sites on the multisite, so far the api is only from one site, how to get all sites listed

i need the script to that, im using https://www.cloudways.com/blog/custom-dashboard-using-woocommerce-php-rest-api/
in which i will like to list all orders from all sites,