Classic Integration

This section describes classic integration over the Redirect experience for cards using v2/payments API involves the following steps:

Steps to Integrate

1. Initiate payment request with PayU
2. Redirect the customer
3. Check the response from PayU

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Before you begin:

PayU recommends you to integrate with Test environment initially. For more information, contact you PayU Key Account Manager (KAM) or PayU Support.

Step 1: Initiate payment request with PayU

The merchant initiates PayU with the required transaction mandatory or optional parameters. This needs to be a server-to-server cURL call request. URL, parameters, and descriptions. The response for the seamless payment request is not similar to Merchant Hosted or PayU Hosted Checkout.

You can collect card payments using Server-to-Server integration using classic integration. For seamless Classic integration, the additionalInfo.txnFlow field is set to 4.

Environment

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Reference:

For the Try It experience and response, refer to Cards Classic Integration under API Reference.

Request header

var merchant_key = 'smsplus';
var merchant_secret = 'izF09TlpX4ZOwmf9MvXijwYsBPUmxYHD';
// date
var date = new Date();
date = date.toUTCString();

// authorization
var authorization = getAuthHeader(date);

function getAuthHeader(date) {
    var AUTH_TYPE = 'sha512';
    var data = isEmpty(request['data']) ? "" : request['data'];
    var hash_string = data + '|' + date + '|' + merchant_secret;
    var hash = CryptoJS.SHA512(hash_string).toString(CryptoJS.enc.Hex);
    return `hmac username="${merchant_key}", algorithm="${AUTH_TYPE}", headers="date", signature="${hash}"`;
}

Request body

The following table describes the request body parameters:

paymentMethod object fields description

paymentCard object fields description

order object fields description

additionalInfo object fields description

callBackActions object fields description

billingDetails object fields description

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Error Handling

If any error message is displayed with an error code, refer to the Error Codes section to understand the reason for these error codes.

Sample request

curl --location 'https://apitest.payu.in/v2/payments' \
--header 'date: Tue, 05 Nov 2024 06:12:57 GMT' \
--header 'authorization: hmac username="smsplus", algorithm="sha512", headers="date", signature="d583ff8069c7dfa8340464a24bdd01cbebf4432b4dfe4de862065cc9c9dc622c24c77cb1ac1142bf581ec07eca8d0ec78a66db93f6cd557d0da552f05c0825e3"' \
--header 'Content-Type: application/json' \
--header 'mid: 8390470' \
--header 'X-CREDENTIAL-USERNAME: UMXDPA' \
--data-raw '{
    "accountId": "UMXDPA",
    "referenceId": "ZP6267f0d2996ce",
    "amount": 10,
    "paymentMethod": {
        "name": "CreditCard",	
        "bankCode": "CC", 		
        "paymentCard": {	
            "cardNumber": 500***1234560***,	
            "validThrough": "04/2027",
            "ownerName": "Ashish",
            "cvv": ***,		
            "tavv": "/wAAAAAAPtP+g6IAmbSeg1gAAAA=",
            "last4Digits": "0000",
            "cardTokenType": "NETWORK",	
            "cardToken": "29850879bf39848ca078727b8e1a95165a41cea1"
        }
    },
    "order": {
        "productInfo": "string",
        "orderedItem": [
            {
                "itemId": null,	
                "description": "AAA", 
                "quantity": null,
                "amount" : 10.0
            }
        ],
        "userDefinedFields": {
            "udf1": "",
            "udf2": "",
            "udf3": "",
            "udf4": "",
            "udf5": "",
            "udf6": "",
            "udf7": "",
            "udf8": "",
            "udf9": "",
            "udf10": ""
        },
      "paymentChargeSpecification": {
            "price": 10,
        }  
    },
    "additionalInfo": { 
        "txnS2sFlow": "4",
        "authenticationFlow": "REDIRECT"	
    },
    "callBackActions": {
        "successAction": "https://testapi.payu.in/admin/testresponsev2?action=successAction",
        "failureAction": "https://testapi.payu.in/admin/testresponsev2?action=failureAction",
        "cancelAction": "https://testapi.payu.in/admin/testresponsev2?action=cancelAction",
        "codAction": "https://testapi.payu.in/admin/testresponsev2?action=codAction",
        "termAction": "string",
        "timeOutAction": null,
        "returnAction": "https://testapi.payu.in/admin/testresponsev2?action=successAction"
    },
   "billingDetails": {
         "firstName": "sartaj",
         "lastName": "",
         "phone": "9876543210",
         "email": "[email protected]",
         "city": "Bharatpur",
         "state": "Rajasthan",
         "country": "India",
         "zipCode": "321028"
    },
   "deviceInfo": {
         "platform": null,
         "version": null,
         "ip": null,
         "userAgent": null,
         "acceptHeader": null,
         "language": null,
         "colorDepth": null,
         "screenHeight": null,
         "screenWidth": null,
         "timeZone": null,
         "javaEnabled": null
   }
}'

Sample response

curl --location 'https://apitest.payu.in/v2/payments' \
--header 'date: Thu, 27 Mar 2025 10:12:27 GMT' \
--header 'authorization: hmac username="smsplus", algorithm="sha512", headers="date", signature="ec84843a663143bb89391f6fa2d4b9404bab1543a3eee81263b4a507ebf5d289d8fad1fbcdd59da820951e3e0f9b0b0b3d1bad9b41338804e7c42a8a6197c6e9"' \
--header 'Content-Type: application/json' \
--header 'Cookie: PHPSESSID=sclorpmpb4ngion5e996os22ao' \
--data-raw '{
    "accountId": "smsplus",
    "referenceId": "b5f2d8785768087678fn4",
    "amount": 10,
    "currency": "INR",
    "paymentSource": "WEB",
    "paymentMethod": {
        "name": "CreditCard",
        "bankCode": "CC",
        "paymentCard": {
            "cardNumber": 5497774415170603,
            "validThrough": "05/2025",
            "cvv": 123,
            "cardToken": "29850879bf39848ca078727b8e1a95165a41cea1",
            "ownerName": "Ashish",
            "issuer": "ICICI",
            "bin": "500446",
            "last4Digits": "0000",
            "cardHash": null,
            "cardTokenType": "NETWORK",
            "tavv": "/wAAAAAAPtP+g6IAmbSeg1gAAAA="
        }
    },
    "order": {
        "productInfo": "qwertyuiopasdfghjkl",
        "orderedItem": [
            {
                "itemId": "1",
                "description": "string",
                "quantity": 1
            }
        ],
        "userDefinedFields": {
            "udf1": "",
            "udf2": "",
            "udf3": "",
            "udf4": "",
            "udf5": "",
            "udf6": "",
            "udf7": "",
            "udf8": "",
            "udf9": "",
            "udf10": ""
        },
        "paymentChargeSpecification": {
            "price": 10,
            "convenienceFee": "CC:12,AMEX:19,SBIB:98,DINR:2,DC:25,NB:55",
            "offers": {
                "applied": [
                    {
                        "offerId": "no_offer",
                        "amount": null
                    }
                ]
            }
        }
    },
    "additionalInfo": {
        "txnS2sFlow": "4",
        "authenticationFlow": "REDIRECT"
    },
    "callBackActions": {
        "successAction": "https://apitest.payu.in/test_response",
        "failureAction": "https://apitest.payu.in/test_response",
        "cancelAction": "https://apitest.payu.in/test_response"
    },
    "billingDetails": {
        "firstName": "sartaj",
        "lastName": "",
        "phone": "9876543210",
        "email": "[email protected]",
        "city": "Bharatpur",
        "state": "Rajasthan",
        "country": "India",
        "zipCode": "321028"
    },
    "authorization": {
        "eci": "05",
        "cavv": "AAABAWFlmQAAAABjRWWZEEFgFz",
        "flowType": "Frictionless",
        "threeDSTransID": "67b4c71f-19bf-4d97-bd09-4e3687dc9e42",
        "threeDSServerTransID": "eea30d14-71cf-41af-b961-f95b7d67dc93",
        "threeDSTransStatus": "Y",
        "threeDSTransStatusReason": "01",
        "aquirer_bin": "401200",
        "additionalInfo": {
            "authUdf1": "string",
            "authUdf2": "string"
        }
    },
    "threeDS2RequestData": {
        "threeDSVersion": "2.2.0",
        "deviceChannel": "APP"
    }
}'

Step 2: Redirect the customer

Redirect the customer to the bank page using the acsTemplate as received in Step 1.

Step 3: Verify payment

Sample response

The sample response after the customer makes payment will be similar to v2 merchant hosted checkout payments.

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Note:

Reverse hashing of the response is not required with that of v2/payment API.

Array
(
    [referenceId] => b5f2d8785768087678fm9
    [paymentId] => 1999110000001769
    [message] => Please call verify api to get the transaction status
)

Verify the transaction details using the Verification APIs. For API reference, refer to Verify Payment API under API Reference.

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Tip

The transaction ID that you posted in Step 1 with PayU must be used here.