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Napas card Redirect Component

Add Napas card to an existing Components integration.

If you have an existing Android Components integration, you can use our Redirect Component to redirect the shopper to the Napas card app or website where they can complete the payment.

When making an Napas card payment, you need to:

Before you begin

This page explains how to add Napas card to your existing Android Components integration. The Android Components integration works the same way for all payment methods. If you haven't done this integration yet, refer to our Components integration guide.

Before starting your Napas card integration:

  1. Make sure that you have set up your back end implementation for making API requests.
  2. Add Napas card in your test Customer Area.

Show Napas card in your payment form

Include Napas card in the list of available payment methods. You don't need to collect any information from the shopper in your payment form.

  1. Specify in your /paymentMethods request:

The response contains paymentMethod.type: momo_atm.

We provide logos for Napas card which you can use on your payment form. For more information, refer to Downloading logos.

Make a payment

When the shopper proceeds to pay, you need to:

  1. From your server, make a /payments request, specifying:

    • paymentMethod.type: Set this to momo_atm.
    • returnUrl: URL to where the shopper should be redirected back to after they complete the payment. Get this URL from the Component in the RedirectComponent.getReturnUrl(context).

    In the /payments response, note the action object. This contains the information needed to redirect the shopper.

  2. Pass the action object to your client app.

Handle the redirect

  1. Use the Redirect Component to redirect the shopper to Napas card.

  2. After the shopper returns to your app, make a POST /payments/details request from your server, providing:

    • details: The actionComponentData.details object from the Redirect Component.

You receive a response containing:

  • resultCode: Use this to present the payment result to your shopper.
  • pspReference: Our unique identifier for the transaction.

Present the payment result

Use the  resultCode that you received in the /payments/details response to present the payment result to your shopper.

The resultCode values you can receive for Napas card are:

resultCode Description Action to take
Authorised The payment was successful. Inform the shopper that the payment has been successful.
Cancelled The shopper cancelled the payment while on Napas card or NAPAS's website. Ask the shopper whether they want to continue with the order, or ask them to select a different payment method.
Pending or
Received
The shopper has completed the payment but the final result is not yet known. Inform the shopper that you've received their order, and are waiting for the payment to be completed.

To know the final result of the payment, wait for the AUTHORISATION webhook.
Refused The payment was refused by the shopper's bank. Ask the shopper to try the payment again using a different payment method.

If the shopper closed the browser and failed to return to your website, wait for webhooks to know the outcome of the payment. The webhooks you can receive for Napas card are:

eventCode success field Description Action to take
AUTHORISATION false The transaction failed. Cancel the order and inform the shopper that the payment failed.
AUTHORISATION true The shopper successfully completed the payment. Inform the shopper that the payment has been successful and proceed with the order.
OFFER_CLOSED true The shopper did not complete the payment. Cancel the order and inform the shopper that the payment timed out.

Test and go live

To test Napas card payments, select any bank from the list and use the following test cards and credentials:

Scenario Card name Card number Expiry One-time password
Successful Nguyen Van A 9704000000000018 03/07 otp
Card blocked Nguyen Van A 9704000000000026 03/07 otp
Insufficient funds Nguyen Van A 9704000000000034 03/07 otp
Amount exceeded limit Nguyen Van A 9704000000000042 03/07 otp

Check the status of Napas card test payments in your Customer Area > Transactions > Payments.

Before you can accept live Napas card payments, you need to submit a request for Napas card in your live Customer Area.

See also