How to take only payment on another woocomerce website - wordpress

Question

I want to redirect my buyers to my second website 'B' to make payment for my product on website 'A' and after successful payment on website 'B', it should automatically update the order status on website 'A' as the order is completed. I am using woo commerce plugin for my websites. Please any plugins, Add-ons, or custom code suggestions. please I need help
Site 'A'
function action_woocommerce_new_order( $order_id ) {
//get all order details by $order_id
//post your data to site B
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"http://yoursiteB.com/wp-json/api/v2/create_wc_order");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
"postvar1=value1&postvar2=value2");
// In real life you should use something like:
// curl_setopt($ch, CURLOPT_POSTFIELDS,
// http_build_query(array('postvar1' => 'value1')));
// Receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$server_output = curl_exec($ch);
curl_close ($ch);
};
add_action( 'woocommerce_payment_complete', 'action_woocommerce_new_order', 10, 1 );
Site 'B'
Class WC_Rest_API {
public function __construct() {
add_action( 'rest_api_init', array( $this, 'init_rest_api') );
}
public function init_rest_api() {
register_rest_route('api/v2', '/create_wc_order', array(
'methods' => 'POST',
'callback' => array($this,'create_wc_order'),
));
}
public function create_wc_order( $data ) {
//$data - all the details needs to be send from site A
global $woocommerce;
$user_id = $data['user_id'];
$user = get_user_by( 'ID', $user_id);
$phonenumer = get_user_meta( $user_id,'user_phoneno', true);
if($user) {
$address = array(
'first_name' => $user->display_name,
'last_name' => $user->display_name,
'email' => $user->user_email,
'phone' => $phonenumer,
);
$order = wc_create_order();
//get product details from rest api site A
$order->add_product();
$order->set_address( $address, 'billing' );
$order->calculate_totals();
$order = wc_get_order( $order->id );
$response['status'] = 'success';
$response['message'] = 'Order created on wordpress site B.';
return new WP_REST_Response($response, 200);
}
}
}
$rest_api = new WC_Rest_API();
this doesn't work as it create product on the second website.
I want to use the second website to make only payment if it can pull user data and order id only