Please use the shipping sales function of "Web Payment" and "Web Payment" in the document below.
https://developer.paypay.ne.jp/products/docs/webpayment
A simple flow is as follows.
- Execute "Create a QR Code" API. Execute the URL of the response data.
- The user performs the payment operation. The balance will be blocked by the user's payment operation.
- Confirm the sales with the "Capture a payment authorization" API. "At this time, you can change the payment amount."