Mobile App - Kakao Pay

Create a Payment Intent with the Create a Payment Intent API API.

POST /api/v1/pa/payment_intents/create

When a shopper selects to pay with Kakao Pay on their mobile app, call the Confirm a Payment Intent API API to get a payment URL, which you can redirect the shopper to the Kakao Pay app to complete the payment.

POST /api/v1/pa/payment_intents/{id}/confirm

1. Obtain URL from Airwallex and redirect shopper to Kakao Pay App

You will get a response similar to the following (package_name is only available for Android).

You can use the url returned in the confirm Payment Intent response to redirect the shopper to the Kakao Pay app. Shoppers will complete payment in the Kakao Pay mobile app.

We recommend using the native method to check if the Kakao Pay app is installed. On success, try invoking it natively. If invocation fails or if Kakao Pay is not installed, switch to a WebView client to open the fallback URL. The logic is illustrated by the following code sample:

Andriod

Specify the package name in the <queries> tags of AndroidManifest.xml to enable access to the corresponding wallet app.

Redirect shoppers to the wallet app.

iOS

Redirect shoppers to the wallet app.

After the customer completes payment, Kakao Pay will redirect the customer to your app, as dictated by the scheme URL specified in your return URL in the Create a Payment Intent API request.

To get the payment result, we suggest you poll the status of the Payment Intent via the Retrieve a Payment Intent API. You may start polling the Payment Intent status after the shopper is redirected back to your mobile app, i.e., the return_url passed when creating the Payment Intent.

GET /api/v1/pa/payment_intents/{id}

In addition, Airwallex will notify you of the payment result asynchronously via the webhooks. Please refer to the webhook documentation to set up your webhook accordingly. Although subscribing to webhook events is optional, it is recommended to subscribe to the payment_intent.succeeded webhook which indicates that the shopper has paid the order.