Send idorder after checkout to external server?

Question

WordPress

Try to do it like this:
add_action( 'woocommerce_create_order', 'so_woocommerce_create_order' );
function so_woocommerce_create_order( $order_id ){
$order = wc_get_order( $order_id );
$url = ' site.ru/savehook.php ';
wp_remote_post( $url, array(
'method' => 'POST',
'timeout' => 45,
'redirection' => 5,
'httpversion' => '1.0',
'blocking' => true,
'headers' = > array(),
'body' => array('order'=>$order),
'cookies' => array()
)
);
}
But the data is not returned to me.
Did I choose the right action? I tried both the name of the hook for adding an order, and using actions from the api, but maybe I'm wrong.

Answer 1

Solved through hooks.
The only thing that needed to be done was to process it.
$_POST = json_decode(file_get_contents('php://input'), true);
$id= $_POST['order']['id'],