I successfully added my payment gateway to admin and its also show me on checkout page but when user click on "place order" i don't have any idea about how shopify process after that. i want to make payment using custom payment gateway.
Where i can add my custom file for payment gateway ? Or where i can add code for custom payment gateway.
what i need to do is..
- when user click on "place order" button ,get all the detail of order
- setup curl request for payment based on details