API: On the merchant's own cashier page, available payment methods are displayed to the user, allowing the user to complete the payment directly on the merchant's cashier page.
2.
H5 Cashier: Compared to the API, its main advantage is that it eliminates the need for the merchant to develop a payment page. Payjn provides a unified payment page, making it easier for merchants to guide users to complete the payment.
3.
Both H5 Cashier and API order placement methods use exactly the same order status query interface and asynchronous order success notification interface (merchantNotifyUrl). Merchants can choose according to their actual needs.