Paytm Drop-in integration

Our iOS Drop-in renders MoMo ATM in your payment form, and redirects the shopper to complete the payment. As with other redirect payment methods, you need to handle the redirect result after the shopper returns to your app.

Before you begin

This page explains how to add Paytm to your existing iOS Drop-in integration. The iOS 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 Paytm integration:

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

Show Paytm 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 Paytm in your payment form, specify in your /paymentMethods request:

• countryCode: IN
• amount.currency: INR

After the shopper selects Paytm, Drop-in invokes the didSubmit method which contains data.paymentMethod. Pass data.paymentMethod to your server and make a payment request.

Make a payment

When the shopper proceeds to pay, Drop-in invokes the didSubmit method which contains data.paymentMethod.

1. Pass data.paymentMethod to your server.

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

   • paymentMethod: The data.paymentMethod from the didSubmit event from your client app.
     • returnURL: URL to where the shopper should be redirected back to after they complete the payment. For more information on setting a custom URL scheme for your app, read the Apple Developer documentation.
   • shopperReference(optional) : Your unique identifier for the shopper.

     For improved conversion rates, we recommend that you pass the shopperReference.

   https://docs.adyen.com/payment-methods/paytm/ios-drop-in#paytm-payments

   • curl
   • Ruby
   • Java
   • PHP
   • Python
   • C#
   • NodeJS

   curl Ruby Java PHP Python C# NodeJS

   curl https://checkout-test.adyen.com/v64/payments \
   -H "x-API-key: YOUR_X-API-KEY" \
   -H "content-type: application/json" \
   -d '{
     "merchantAccount":"YOUR_MERCHANT_ACCOUNT",
     "reference":"YOUR_ORDER_NUMBER",
     "amount":{
       "currency":"INR",
       "value":1000
     },
     "{hint:data.paymentMethod from didSubmit}paymentMethod{/hint}":{
       "type":"paytm"
     },
     "returnUrl":"my-app://"
   }'

   # 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 => "INR",
       :value => 1000
     },
     :reference => "YOUR_ORDER_NUMBER",
     :paymentMethod => {
       :type => "paytm"
     },
     :returnUrl => "my-app://",
     :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("INR");
       amount.setValue(15000L);
       paymentsRequest.setAmount(amount);
   
       DefaultPaymentMethodDetails paymentMethodDetails = new DefaultPaymentMethodDetails();
       paymentMethodDetails.setType("paytm");
       paymentsRequest.setPaymentMethod(paymentMethodDetails);
   
       paymentsRequest.setReference("YOUR_ORDER_NUMBER");
       paymentsRequest.setReturnUrl("my-app://");
   
       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" => "INR",
       "value" => 1000
     ),
     "reference" => "YOUR_ORDER_NUMBER",
     "paymentMethod" => array(
       "type" => "paytm"
     ),
     "returnUrl" => "my-app://",
     "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': 'INR'
      },
      'reference': 'YOUR_ORDER_NUMBER',
      'paymentMethod': {
         'type': 'paytm'
      },
      'returnUrl': 'my-app://',
      '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("INR", 1000);
   var details = new Model.Checkout.DefaultPaymentMethodDetails{
     Type = "paytm"
   };
   var paymentRequest = new Adyen.Model.Checkout.PaymentRequest
   {
     Reference = "YOUR_ORDER_NUMBER",
     Amount = amount,
     ReturnUrl = @"my-app://",
     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: "INR", value: 1000 },
       paymentMethod: {
           type: 'paytm'
       },
       reference: "YOUR_ORDER_NUMBER",
       merchantAccount: config.merchantAccount,
       returnUrl: "my-app://"
   }).then(res => res);

   The /payments response contains:

   • action: Object containing information about the redirect.
   https://docs.adyen.com/payment-methods/paytm/ios-drop-in#-payments-response

   /payments response

   {
     "resultCode":"RedirectShopper",
     "action":{
        "method":"GET",
        "paymentData":"Ab02b4c0!BQABAgCSZT7t...",
        "paymentMethodType":"paytm",
        "type":"redirect",
        "url":"https://test.adyen.com/hpp/redirect.shtml?brandCode=.."
     },
     "details":[
        {
           "key":"payload",
           "type":"text"
        }
     ],
     ...
   }
3. Pass the action object to your client app. Drop-in needs this to redirect the shopper to Paytm.

Handle the redirect result

Drop-in redirects the shopper to the Paytm app or website where they complete the payment.  

1. To inform Drop-in when the shopper returns to your app, implement the following in your UIApplicationDelegate:

   func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey: Any] = [:]) -> Bool {
      RedirectComponent.applicationDidOpen(from: url)
   
      return true
   }

   After Drop-in completes the action, it invokes the didProvide method.
2. From your server, make a POST /payments/details request providing the data from the didProvide method from your client app.
   https://docs.adyen.com/payment-methods/vietnamese-online-banking/ios-drop-in#-payments-details-request

   /payments/details request

   {
      "{hint:data.paymentData from didProvide}paymentData{/hint}":"Ab02b4c0!BQABAgCJN1wRZuGJmq8dMncmypvknj9s7l5Tj...",
      "{hint:data.details from didProvide}details{/hint}":{
        "payload":"Ab02b4c0!BQABAgCW5sxB4e/=="
      }
   }

   You receive a response containing:
   • resultCode: Use this to present the result to your shopper.
   • pspReference: Our unique identifier for the transaction.
   https://docs.adyen.com/payment-methods/vietnamese-online-banking/ios-drop-in#-payments-details-response

   /payments/details response

   {
      "resultCode": "Authorised",
      "pspReference": "88154795347618C"
   }

Present the payment result

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

The resultCode values you can receive for Paytm are:

If the shopper failed to return to your website or app, wait for notification webhooks to know the outcome of the payment:

Test and go live

Before you go live, test your integration using the following credentials:

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

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

See also