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GrabPay iOS Component

Add GrabPay to your iOS Components integration.

Our GrabPay Component renders GrabPay in your payment form, and redirects them to GrabPay's webpage.

When making a GrabPay payment, you additionally need to:

Before you begin

This page explains how to add GrabPay to your existing iOS Components integration. The iOS 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 GrabPay integration:

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

Show GrabPay in your payment form

To show GrabPay Component in your payment form, you need to:

  1. Specify in your /paymentMethods request:

    Country countryCode amount.currency
    Malaysia MY MYR
    Singapore SG SGD
    Philippines 1 PH PHP

    1 GrabPay PayLater is not available in Philippines.

  2. Decode the /paymentMethods response and find the payment method with type grabpay_XX, where XX is the country code.

Collect additional information in your payment form

Collecting additional information is only needed for GrabPay PayLater payments. However, we highly recommend collecting this information in your initial integration for GrabPay Wallet because it will help save development resources if you plan to enable GrabPay PayLater afterwards.

Collect the following details from the shopper:

  • deliveryAddress: The address where the purchased goods should be delivered, including the country, city, street, house number, and postal code.
  • lineItems: Price and product information about the purchased items, to be included on the invoice sent to the shopper.

Pass the collected data to your server because you will need it when making a payment. This information will be used by GrabPay to perform risk checks.

Make a payment

When the shopper proceeds to pay, the Component invokes the didSubmit method containing the data.paymentMethod from the PaymentComponentDelegate. Depending on the type of GrabPay payment, you need to provide different parameters to the /payments endpoint.

To make a regular GrabPay Wallet payment:

  1. Pass the data.paymentMethod to your server.
  2. From your server, make a /payments request, specifying:

    • paymentMethod: The data.paymentMethod from your client app.
    • reference: Your unique reference for this payment.
    • amount: The amount that the shopper needs to pay.
    • returnUrl: The URL the shopper will be redirected back to after they complete the payment.
    curl https://checkout-test.adyen.com/v67/payments \
    -H "x-API-key: YOUR_X-API-KEY" \
    -H "content-type: application/json" \
    -d '{
         "amount": {
           "currency": "SGD",
           "value": 1000
         },
         "reference": "YOUR_ORDER_REFERENCE",
         "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_REFERENCE",
      :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_REFERENCE");
        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_REFERENCE",
      "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_REFERENCE',
       '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 paymentRequest = new Adyen.Model.Checkout.PaymentRequest
    {
      Reference = "YOUR_ORDER_REFERENCE",
      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_REFERENCE",
        merchantAccount: config.merchantAccount,
        returnUrl: "https://your-company.com/checkout?shopperOrder=12xy.."
    }).then(res => res);

    The /payments response contains an action object with the information needed to redirect the shopper.

    /payments response
    {
    "resultCode":"RedirectShopper",
    "action":{
      "paymentMethodType":"grabpay_SG",
      "method":"GET",
      "url":"https://checkoutshopper-test.adyen.com/checkoutshopper/checkoutPaymentRedirect?redirectData=...",
      "type":"redirect"
    }
    }
  3. Pass the action object to your client app. You need this to initialize the Redirect Component.

To make a GrabPay PayLater payment:

  1. Pass the data.paymentMethod to your server.
  2. From your server, make a /payments request, specifying:

    • paymentMethod: The data.paymentMethod from your client app.
    • reference: Your unique reference for this payment.
    • amount: The amount that the shopper needs to pay.
    • returnUrl: The URL the shopper will be redirected back to after they complete the payment.
    • deliveryAddress: The address where the purchased goods should be delivered.
    • lineItems: Price and product information about the purchased items, to be included on the invoice sent to the shopper.

    Here is how you would make a payment for 10 SGD.

    curl https://checkout-test.adyen.com/v67/payments \
    -H "x-API-key: YOUR_X-API-KEY" \
    -H "content-type: application/json" \
    -d '{
        "amount": {
            "currency": "SGD",
            "value": 1000
        },
        "reference": "YOUR_ORDER_REFERENCE",
        "paymentMethod": {
            "type": "grabpay_SG"
        },
        "returnUrl": "https://your-company.com/checkout?shopperOrder=12xy..",
        "merchantAccount": "YOUR_MERCHANT_ACCOUNT",
        "deliveryAddress": {
            "city": "Singapore",
            "country": "SG",
            "houseNumberOrName": "109",
            "postalCode": "179097",
            "street": "North Bridge Road"
        },
        "lineItems":[
          {
             "quantity":"1",
             "taxPercentage":"2100",
             "description":"Shoes",
             "id":"Item #1",
             "amountIncludingTax":"400",
             "productUrl": "URL_TO_PURCHASED_ITEM",
             "imageUrl": "URL_TO_PICTURE_OF_PURCHASED_ITEM"
          }
       ]
    }'
    # 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_REFERENCE",
      :paymentMethod => {
        :type => "grabpay_SG"
      },
      :returnUrl => "https://your-company.com/checkout?shopperOrder=12xy..",
      :merchantAccount => "YOUR_MERCHANT_ACCOUNT",
      :deliveryAddress => {
          :city => "Singapore",
          :country => "SG",
          :houseNumberOrName => "109",
          :postalCode => "179097",
          :street => "North Bridge Road"
      },
      :lineItems => [
        {
           :quantity =>"1",
           :taxPercentage =>"2100",
           :description =>"Shoes",
           :id =>"Item #1",
           :amountIncludingTax =>"400",
           :productUrl => "URL_TO_PURCHASED_ITEM",
           :imageUrl => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
        }
      ]
    })
    // 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_REFERENCE");
        paymentsRequest.setReturnUrl("https://your-company.com/checkout?shopperOrder=12xy..");
    
        Address deliveryAddress = new Address();
        deliveryAddress.setCity("Singapore");
        deliveryAddress.setCountry("SG");
        deliveryAddress.setHouseNumberOrName("109");
        deliveryAddress.setPostalCode("179097");
        deliveryAddress.setStreet("North Bridge Road");
    
        List<LineItem> lineItems = new ArrayList<>();
        lineItems.add(
                new LineItem()
                        .quantity(1L)
                        .taxPercentage(2100L)
                        .description("Shoes")
                        .id("Item #1")
                        .amountIncludingTax(400L)
                        .productUrl("URL_TO_PURCHASED_ITEM")
                        .imageUrl("URL_TO_PICTURE_OF_PURCHASED_ITEM")
        );
    
        paymentsRequest.setLineItems(lineItems);
    
        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_REFERENCE",
      "paymentMethod" => array(
        "type" => "grabpay_SG"
      ),
      "returnUrl" => "https://your-company.com/checkout?shopperOrder=12xy..",
      "merchantAccount" => "YOUR_MERCHANT_ACCOUNT",
      "deliveryAddress" => [
         "city" => "Singapore",
         "country" => "SG",
         "houseNumberOrName" => "109",
         "postalCode" => "179097",
         "street" => "North Bridge Road"
      ],
      "lineItems" => [
         [
            "quantity" => "1",
            "taxPercentage" => "2100",
            "description" => "Shoes",
            "id" => "Item #1",
            "amountIncludingTax" => "400",
            "productUrl" => "URL_TO_PURCHASED_ITEM",
            "imageUrl" => "URL_TO_PICTURE_OF_PURCHASED_ITEM"
         ]
      ]
    );
    $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_REFERENCE',
       'paymentMethod': {
          'type': 'grabpay_SG'
        },
       'returnUrl': 'https: //your-company.com/checkout?shopperOrder=12xy..',
       'merchantAccount': 'YOUR_MERCHANT_ACCOUNT',
       'deliveryAddress': {
            'city': 'Singapore',
            'country': 'SG',
            'houseNumberOrName': '109',
            'postalCode': '179097',
            'street': 'North Bridge Road'
        },
        'lineItems': [
            {
                'quantity': '1',
                'taxPercentage': '2100',
                'description': 'Shoes',
                'id': 'Item #1',
                'amountIncludingTax': '400',
                'productUrl': 'URL_TO_PURCHASED_ITEM',
                'imageUrl': 'URL_TO_PICTURE_OF_PURCHASED_ITEM'
            }
        ]
    })
    // 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 paymentRequest = new Adyen.Model.Checkout.PaymentRequest
    {
      Reference = "YOUR_ORDER_REFERENCE",
      Amount = amount,
      ReturnUrl = "https://your-company.com/checkout?shopperOrder=12xy..",
      MerchantAccount = "YOUR_MERCHANT_ACCOUNT",
      DeliveryAddress = new Model.Checkout.Address
      {
           City = "Singapore",
           Country = "SG",
           HouseNumberOrName = "109",
           PostalCode = "179097",
           Street = "North Bridge Road"
      },
      LineItems = new List<LineItem>
      {
        new LineItem(Quantity:1, TaxPercentage:2100, Description:"Shoes", Id:"Item #1", AmountIncludingTax:400, ProductUrl:"URL_TO_PURCHASED_ITEM", ImageUrl:"URL_TO_PICTURE_OF_PURCHASED_ITEM"),
      },
      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_REFERENCE",
        merchantAccount: config.merchantAccount,
        returnUrl: "https://your-company.com/checkout?shopperOrder=12xy..",
        deliveryAddress: {
            city: "Singapore",
            country: "SG",
            houseNumberOrName: "109",
            postalCode: "179097",
            street: "North Bridge Road"
        },
        lineItems: [
          {
            quantity: "1",
            taxPercentage: "2100",
            description: "Shoes",
            id: "Item #1",
            amountIncludingTax: "400",
            productUrl: "URL_TO_PURCHASED_ITEM",
            imageUrl: "URL_TO_PICTURE_OF_PURCHASED_ITEM"
          }
        ]
    }).then(res => res);

    The /payments response contains an action object with the information needed to redirect the shopper.

    /payments response
    {
    "resultCode":"RedirectShopper",
    "action":{
      "paymentMethodType":"grabpay_SG",
      "method":"GET",
      "url":"https://checkoutshopper-test.adyen.com/checkoutshopper/checkoutPaymentRedirect?redirectData=...",
      "type":"redirect"
    }
    }
  3. Pass the action object to your client app. You need this to initialize the Redirect Component.

Handle the redirect

  1. Use the Redirect Component to redirect the shopper to GrabPay.
  2. After the shopper returns to your app, make a POST /payments/details request from your server and provide the data from the didProvide method from your client app.
    /payments/details request
      curl https://checkout-test.adyen.com/v67/payments/details \
    -H "x-API-key: YOUR_X-API-KEY" \
    -H "content-type: application/json" \
    -d '{
       "details": {
         "redirectResult": "eyJ0cmFuc1N0YXR1cyI6IlkifQ=="
     }
    }'

You receive a response containing:

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

/payments/details response
{
   "resultCode": "Authorised",
   "pspReference": "88154795347618C"
}

For GrabPay PayLater, the response also contains additionalData.paymentMethodVariant — the Adyen sub-variant of the payment method used for the payment request. Possible values:

  • For GrabPay Wallet: grabpay_wallet_SG, grabpay_sg, grabpay_wallet_MY, grabpay_my, grabpay_wallet_PH, grabpay_ph
  • For GrabPay PayLater: grabpay_postpaid_SG, grabpay_instalment4_SG, grabpay_postpaid_MY, grabpay_instalment4_MY.

/payments/details response
{
    "resultCode": "Authorised",
    "pspReference": "88154795347618C",
    "additionalData": {
        "paymentMethodVariant": "grabpay_postpaid_SG"
    }
}

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 ask them to 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 or
Received
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.

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

  1. Contact our Support Team to register for a test wallet. You'll need to fill out a form and provide a phone number (local or international) and an email address. Note that the wallet will have a balance limit depending on the wallet regulations in each market.
  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 test payments in your Customer Area > Transactions > Payments.

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

See also