post https://mapi.yuansfer.com/app-instore/v3/create-trans-qrcode
This API allows merchant POS systems to generate QR codes with unique transaction numbers from the Pockyt system. When customers scan these QR codes using their mobile digital wallet apps, they can access payment URLs, transaction numbers, and transaction details sent by the Merchant POS system. Essentially, it simplifies the process of creating QR codes and transaction numbers for customers to initiate payments through their digital wallet apps.