How to get paypal express token?

Question

PHP

The paypal express plugin has a smart button. If it is enabled, then payment from the checkout page occurs through a modal. In this modal, there is a token that is located both in get (in the address bar) and in the session. How can I pull this token from the modal and save it somewhere on the main payment page? Neither through nor through the session it is not drawn out. If you pay from the card page, then the token can be pulled from GET, as indicated above
$_GET['token']

Answer 1

Solution found: you can contact $_REQUESTand get a token at the exit from the payment