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GrabPay Drop-in integration

Add GrabPay to an existing Drop-in integration.

Our Android Drop-in renders GrabPay in your payment form, and redirects the shopper to GrabPay to complete the payment.

Before you begin

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

Before starting your GrabPay integration:

  1. Make sure that you have set up your back end implementation, and added Drop-in to your payment form.
  2. Add GrabPay in your test Customer Area.

Show GrabPay in your payment form

Drop-in uses the countryCode and the amount.currency from your /paymentMethods request to show the available payment methods to your shopper.

To show GrabPay in your payment form, you need to specify in your /paymentMethods request:

countryCode amount.currency
MY MYR
PH PHP
SG SGD
TH THB

The response contains the corresponding paymentMethod.type grabpay_XX where XX represents the country.

Make a payment

When the shopper proceeds to pay, Drop-in returns the paymentComponentData.paymentMethod.

  1. Pass the paymentComponentData.paymentMethod to your server.

  2. From your server, make a /payments request, specifying:
    • paymentMethod: The paymentComponentData.paymentMethod from your client app.
    • 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).

curl https://checkout-test.adyen.com/v49/payments \
-H "x-API-key: YOUR_X-API-KEY" \
-H "content-type: application/json" \
-d '{
     "amount": {
       "currency": "SGD",
       "value": 1000
     },
     "reference": "YOUR_ORDER_NUMBER",
     "paymentMethod": {
       "type": "grabpay_SG"
     },
     "returnUrl": "https://your-company.com/checkout?shopperOrder=12xy..",
     "merchantAccount": "YOUR_MERCHANT_ACCOUNT"
}'
# Set your X-API-KEY with the API key from the Customer Area.
adyen = Adyen::Client.new
adyen.api_key = "YOUR_X-API-KEY"
 
response = adyen.checkout.payments({
  :amount => {
    :currency => "SGD",
    :value => 1000
  },
  :reference => "YOUR_ORDER_NUMBER",
  :paymentMethod => {
    :type => "grabpay_SG"
  },
  :returnUrl => "https://your-company.com/checkout?shopperOrder=12xy..",
  :merchantAccount => "YOUR_MERCHANT_ACCOUNT"
})
// Set YOUR_X-API-KEY with the API key from the Customer Area.
// Change to Environment.LIVE and add the Live URL prefix when you're ready to accept live payments.
    Client client = new Client("YOUR_X-API-KEY", Environment.TEST);
    Checkout checkout = new Checkout(client);

    PaymentsRequest paymentsRequest = new PaymentsRequest();

    String merchantAccount = "YOUR_MERCHANT_ACCOUNT";
    paymentsRequest.setMerchantAccount(merchantAccount);

    Amount amount = new Amount();
    amount.setCurrency("SGD");
    amount.setValue(15000L);
    paymentsRequest.setAmount(amount);

    DefaultPaymentMethodDetails paymentMethodDetails = new DefaultPaymentMethodDetails();
    paymentMethodDetails.setType("grabpay_SG");
    paymentsRequest.setPaymentMethod(paymentMethodDetails);

    paymentsRequest.setReference("YOUR_ORDER_NUMBER");
    paymentsRequest.setReturnUrl("https://your-company.com/checkout?shopperOrder=12xy..");

    PaymentsResponse paymentsResponse = checkout.payments(paymentsRequest);
// Set your X-API-KEY with the API key from the Customer Area.
$client = new \Adyen\Client();
$client->setXApiKey("YOUR_X-API-KEY");
$service = new \Adyen\Service\Checkout($client);

$params = array(
  "amount" => array(
    "currency" => "SGD",
    "value" => 1000
  ),
  "reference" => "YOUR_ORDER_NUMBER",
  "paymentMethod" => array(
    "type" => "grabpay_SG"
  ),
  "returnUrl" => "https://your-company.com/checkout?shopperOrder=12xy..",
  "merchantAccount" => "YOUR_MERCHANT_ACCOUNT"
);
$result = $service->payments($params);
#Set your X-API-KEY with the API key from the Customer Area.
adyen = Adyen.Adyen()
adyen.client.xapikey = 'YOUR_X-API-KEY'

result = adyen.checkout.payments({
   'amount': {
      'value': 1000,
      'currency': 'SGD'
   },
   'reference': 'YOUR_ORDER_NUMBER',
   'paymentMethod': {
      'type': 'grabpay_SG'
   },
   'returnUrl': 'https://your-company.com/checkout?shopperOrder=12xy..',
   'merchantAccount': 'YOUR_MERCHANT_ACCOUNT'
})
// Set your X-API-KEY with the API key from the Customer Area.
var client = new Client ("YOUR_X-API-KEY", Environment.Test);
var checkout = new Checkout(client);

var amount = new Model.Checkout.Amount("SGD", 1000);
var details = new Model.Checkout.DefaultPaymentMethodDetails{
  Type = "grabpay_SG"
};
var paymentsRequest = new Model.Checkout.PaymentRequest
{
  Reference = "YOUR_ORDER_NUMBER",
  Amount = amount,
  ReturnUrl = @"https://your-company.com/checkout?shopperOrder=12xy..",
  MerchantAccount = "YOUR_MERCHANT_ACCOUNT",
  PaymentMethod = details
};

var paymentResponse = checkout.Payments(paymentsRequest);
// Set your X-API-KEY with the API key from the Customer Area.
const {Client, Config, CheckoutAPI} = require('@adyen/api-library');
const config = new Config();
// Set your X-API-KEY with the API key from the Customer Area.
config.apiKey = '[API_KEY]';
config.merchantAccount = '[YOUR_MERCHANT_ACCOUNT]';
const client = new Client({ config });
client.setEnvironment("TEST");
const checkout = new CheckoutAPI(client);
checkout.payments({
    amount: { currency: "SGD", value: 1000 },
    paymentMethod: {
        type: 'grabpay_SG'
    },
    reference: "YOUR_ORDER_NUMBER",
    merchantAccount: config.merchantAccount,
    returnUrl: "adyencheckout://your.package.name"
}).then(res => res);

The /payments response contains:

  • action: Object containing information about the redirect.

{
    "resultCode": "RedirectShopper",
    "action": {
        "method": "GET",
        "paymentData": "Ab02b4c0!BQABAgBlmvU6H9LnijLzrYAgMfopoX...",
        "paymentMethodType": "grabpay_SG",
        "type": "redirect",
        "url": "https://test.adyen.com/hpp/skipDetails.shtml?brandCode=grabpay_SG&currencyCode=SGD..."
    },
    "details": [
        {
            "key": "payload",
            "type": "text"
        }
    ],
    "paymentData": "Ab02b4c0!BQABAgBlmvU6H9LnijLzrYAgMfopoX...",
    "redirect": {
        "method": "GET",
        "url": "https://test.adyen.com/hpp/skipDetails.shtml?brandCode=grabpay_SG&currencyCode=SGD..."
    }
}
  1. Pass the action object to your client app. Drop-in needs this to redirect the shopper to GrabPay.

Check the payment result

When the shopper returns back to your app, Drop-in provides the actionComponentData.

  1. Pass the actionComponentData.details to your server.

  2. From your server, make a /payments/details request containing the actionComponentData.details to check the payment result.

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 GrabPay are:

resultCode Description Action
Authorised The payment was authorised. You will receive the funds in a number of days. Inform the shopper that the payment was successful.
Cancelled The shopper cancelled the payment before it was completed, for example while in the GrabPay app. Ask the shopper whether they want to continue with the order, or request that they select a different payment method.
Refused The payment was refused by the shopper's card issuer. Ask the shopper to try the payment again using a different payment method or card.
Pending The shopper has completed the payment but the final result is not yet known. You will receive the final result of the payment in an AUTHORISATION notification. Inform the shopper that you've received their order, and are waiting for the payment to be processed.
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 processed.
If a shopper completed the payment but failed to return to your website or app, you will receive the outcome of the payment in an AUTHORISATION notification.

Recurring payments

To make recurring GrabPay payments, you first need to create a shopper token and then make subsequent recurring transactions with the token.
Refer to Tokenization for more information and detailed instructions.

Test and go live

To test your GrabPay integration:

  1. Contact Grab and register a local phone number and an email address with them for GrabPay. The local phone number needs to be in the country that you want to test GrabPay payments for. For example, to test grabpay_SG you need a Singapore phone number.
  2. In the simulator, log in to Grab with the phone number you registered, and specify the one-time password you receive on that phone number.

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

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

See also