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Website QR

Accept WeChat Pay on your website by presenting your QR code to the shopper.

Wechat - website QR code

Step 1. Initialize a payment Intent

Create a PaymentIntent object with a request_id, amount, currency and a merchant_order_id from your backend server.


Step 2. Get available payment methods

To be able to display WeChat Pay as a payment option on your checkout page, you need to get available payment methods from Airwallex API.

When the PaymentIntent is created, send a GET request with parameters country_code, transaction_currency, transaction_mode to API endpoint /api/v1/pa/config/payment_method_types to query for a list of available payment method based on the information provided. The response will also contain the required fields and necessary resources of each payment method for you to display them on your page.


Response: Render payment methods in items to show all available payment methods to the shopper at checkout page.

Note for available payment methods:

Alternatively, you can maintain available payment methods and corresponding resources locally on your server if you do not want to use this API endpoint. However, we highly recommend you get available payment methods dynamically from this API to avoid any trouble when payment method information or resources get updated.

Step 3. Generate QR and accept payments

When a shopper selects to pay with WeChat Pay on their desktop browser, call the following API endpoints to get a QR code in the response, which you can then render on your website through your shopper’s browser.

  • Generate a QR code or refresh a QR code on expiry



Response: Render the value of qrcode_url as a QR code in the browser for the customer to scan with WeChat.

  • Wait for notification from Airwallex

Airwallex will notify you on the payment result asynchronously via the webhook API. Please refer to webhook documentation to set up your webhook accordingly. Although subscribing to different events is optional, it is recommended to at least subscribe to the ‘payment_intent.succeeded’ which indicates that the shopper has successfully paid for the order via WeChat.

  • Query the PaymentIntent status A QR code expires in 2 hours (configurable) once generated. You may also query the status of a payment anytime via the PaymentIntents API