Integration flow for WeChat Pay module
Please make sure that you provide a Universal Link (not a scheme uri link such as "airwallexcheckout://com.aireallex.payment") as the returnURL when creating a payment session, so that WeChat app can redirect shoppers back to your app as per iOS system security requirements.
(Optional) Create a
Create a customer object and pass it to your server if you want to save your customer's details and attach payment information to them. (This step is compulsory when you process recurring payment for a new customer)
From your server, access Airwallex API to Create a Customer API
Your client app will need a
PaymentIntentto form a payment session for Airwallex SDK to present payment flow.
From your server, access Airwallex API to Create a Payment Intent API and pass the
PaymentIntentreturned to client app.
PaymentIntentcreated in the previous step, a
returnURLto your app, and shipping address and shopper country code of this order.Java
Present payment flow by with the
Sessioncreated in the last step, Airwallex SDK will handle the rest of the payment process and let you know when the payment flow is completed or cancelled.Java
Query WeChat payment result with callback function
Implement the callback function
onRespwhich will be invoked when the shopper is redirected from WeChat back to your app. The
onRespfunction is declared in
WXApiDelegateprotocol and can get the payment result directly from WeChat, or you can retrieve the
PaymentIntentfrom you server, afterwards to confirm the payment result.
Your server can retrieve the Payment Intent API, get the payment result within it and return it to client app.Java