hello I made a plugin which follows that scenario :

1. 1-client send data to payment gateway
2. 2- gateway responses with url
3. 3- client get redirected to that url
4. 4- after payment server sends req with status to a webhook inside my plugin
5. 5- my hook updates order status in admin
6. and this last thing I can’t do : my hook empties the cart of the client
   I tried alot and I dicovered the main problem , it is in sessions it can’t get session to get cart
   thanks in advance!

I tried to follow problem and found it is in sessions so we need a way to resolve it or find a new method to get cart and empty it