1. Build Integration for Cards (New Integration)

You can integrate with Curlec APIs to start accepting card payments. Curlec APIs support the latest 3DS2 authentication protocol.

Watch Out!

You must have a PCI compliance certificate to get this feature enabled on your account.

Handy Tips

Integration does not differ for the challenge flow or frictionless flow.

Integration Steps

Follow the steps below to integrate S2S JSON API with browser flow and accept payments using cards.

1.1

Create an Order

1.2

Create a Payment

1.3

Handle Payment Success and Error Events

1.4

Verify Payment Signature

1.5

Integrate Payments Rainy Day Kit

1.6

Verify Payment Status

Watch Out!

Do not hardcode the URL returned in the API responses.

1.1 Create an Order

Order is an important step in the payment process.

An order should be created for every payment.
You can create an order using the
Orders API
. It is a server-side API call. Know how to
authenticate
Orders API.
The order_id received in the response should be passed to the checkout. This ties the order with the payment and secures the request from being tampered.

API Sample Code

Use this endpoint to create an order using the Orders API.

POST

/orders

curl -X POST https://api.razorpay.com/v1/orders
-U [YOUR_KEY_ID]:[YOUR_KEY_SECRET]
-H 'content-type:application/json'
-d '{
   "amount": 100,
   "currency": "MYR",
   "receipt": "qwsaq1",
   "partial_payment": true,
   "first_payment_min_amount": 230,
   "notes": {
     "key1": "value3",
     "key2": "value2"
   }
 }'

Request Parameters

amount

mandatory

integer The amount to be paid by the customer in sen. For example, if the amount is MYR 500.00, enter 50000.

currency

mandatory

string The currency in which the payment should be made by the customer. Length must be of 3 characters.

receipt

optional

string Your receipt id for this order should be passed here. Maximum length is 40 characters.

notes

optional

json object Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. For example, "note_key": "Beam me up Scotty”.

partial_payment

optional

boolean Indicates whether the customer can make a partial payment. Possible values:

true: The customer can make partial payments.
false (default): The customer cannot make partial payments.

first_payment_min_amount

optional

integer Minimum amount that must be paid by the customer as the first partial payment. For example, if an amount of MYR 7,000.00 is to be received from the customer in two installments of #1 - MYR 5,000.00, #2 - MYR 2,000.00 then you can set this value as 500000. This parameter should be passed only if partial_payment is true.

Know more about

Orders API

Response Parameters

Descriptions for the response parameters are present in the

Orders Entity

parameters table.

Error Response Parameters

The error response parameters are available in the

API Reference Guide

1.2 Create a Payment

After the order is created, your next step is to create a payment. The following API will create a payment with card as the payment method. The

browser parameters

capture the customer's browser details, which are sent to the banks to aid their risk analysis.

Sample Code

curl -X POST \
https://api.razorpay.com/v1/payments/create/json \
-u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] \
-H "Content-Type: application/json" \
-d '{
	"amount": 100,
	"currency": "MYR",
	"contact": "9000090000",
	"email": "nur.aisyah@example.com",
	"order_id": "order_DPzFe1Q1dEOKed",
	"method": "card",
	"card":{
    	   "number": "4111111111111111",
    	   "name": "Nur",
    	   "expiry_month": "11",
    	   "expiry_year": "30",
    	   "cvv": "100"
      },
      "authentication":{
    	   "authentication_channel": "browser"
      },
      "browser":{
    	   "java_enabled": false,
    	   "javascript_enabled": false,
    	   "timezone_offset": 11,
    	   "color_depth": 23,
    	   "screen_width": 23,
    	   "screen_height": 100
     },
     "ip": "105.106.107.108",
     "referer": "https://merchansite.com/example/paybill",
     "user_agent": "Mozilla/5.0" 
}'

Handy Tips

The payment request and response would remain the same for both frictionless and challenge scenarios.

Request Parameters

amount

mandatory

integer Payment amount in the smallest currency sub-unit. For example, if the amount to be charged is MYR 299.00, then pass 29900 in this field.

currency

mandatory

string Currency code for the currency in which you want to accept the payment. For example, MYR. Refer to the list of supported currencies. The length must be 3 characters.

order_id

mandatory

string Unique identifier of the Order generated in the first step.

mandatory

string Email address of the customer. The maximum length supported is 40 characters.

contact

mandatory

string Phone number of the customer. The maximum length supported is 15 characters, inclusive of country code.

method

mandatory

string Name of the payment method. Possible value is card.

card

mandatory

object Details associated with the card.

number

string Unformatted card number.

name

string Name of the cardholder.

expiry_month

string Expiry month for the card in MM format.

expiry_year

string Expiry year for the card in YY format.

cvv

string CVV printed on the back of the card.

user-agent

mandatory

string The User-Agent header of the user's browser. The default value will be passed by Curlec if not provided by you.

mandatory

string The customer's IP address.

authentication

optional

object Details of the authentication channel.

authentication_channel

string The authentication channel for the payment. Possible values:

browser (default)
app

browser

mandatory

object Information regarding the customer's browser. This parameter need not be passed when authentication_channel=app.

java_enabled

boolean Indicates whether the customer's browser supports Java. Obtained from the navigator HTML DOM object.

javascript_enabled

boolean Indicates whether the customer's browser can execute JavaScript.Obtained from the navigator HTML DOM object.

timezone_offset

integer Time difference between UTC time and the cardholder's browser local time. Obtained from the getTimezoneOffset() method applied to the Date object.

screen_width

integer Total width of the payer's screen in pixels. Obtained from the screen.width HTML DOM property.

screen_height

integer Obtained from the navigator HTML DOM object.

color_depth

integer Obtained from the payer's browser using the screen.colorDepth HTML DOM property.

language

string Obtained from the payer's browser using the navigator.language HTML DOM property. Maximum limit of 8 characters.

notes

optional

object Key-value object used for passing tracking info. Refer to

Notes

for more details.

callback_url

optional

string URL endpoint where Curlec will submit the final payment status.

referrer

optional

string Referrer header passed by the client's browser.

Response Parameters

If the payment request is valid, the response contains the following fields.

razorpay_payment_id

string Unique identifier of the payment. Present for all responses.

array A list of action objects available to you to continue the payment process. Present when the payment requires further processing.

action

string An indication of the next step available to you to continue the payment process. Possible values:

otp_generate: Use this URL to allow the customer to generate OTP and complete the payment on your webpage.
redirect: Use this URL to redirect the customer to submit the OTP on the bank page.

url

string URL to be used for the action indicated.

OTP Generation

If you would like the customer to enter the OTP on your website instead of the bank page, use the otp_generate URL. When this URL is triggered, you get the following response:

curl -u [YOUR_KEY_ID]
-X POST https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_generate
-H "Content-Type: application/json" \

Path Parameter

mandatory

string Unique identifier of the payment.

Response Parameters

If the payment request is valid, the response contains the following fields.

razorpay_payment_id

string Unique identifier of the payment. Present for all responses.

array A list of action objects available to you to continue the payment process. Present when the payment requires further processing.

action

string An indication of the next step available for payment processing. Possible values:

opt_submit - Use this URL to allow the customer to submit OTP and complete the payment on your webpage.
opt_resend - Use this URL to resend OTP to the customer.

url

string URL to be used for the action indicated.

If the customer faces any latency issues, you can choose to cancel this request and redirect the customer to the bank page to enter the OTP and complete the payment. Thus, you can avoid payment failure by switching the customer to the bank page payment flow.

Response on Submitting OTP

Curlec sends the respective success or failure response after the customer submits the OTP on your page.

The following endpoint submits the OTP:

POST

payments/:id/otp/submit

After the payment is completed, the final response is posted to the URL given in callback_url of the request, and can then be verified.

1.3 Handle Payment Success and Error Events

Once the payment is completed by the customer, a POST request is made to the callback_url provided in the payment request. The data contained in this request will depend on whether the payment was a success or a failure.

Success Callback

If the payment made by the customer is successful, the following fields are sent:

razorpay_payment_id
razorpay_order_id
razorpay_signature

{
  "razorpay_payment_id": "pay_29QQoUBi66xm2f",
  "razorpay_order_id": "order_9A33XWu170gUtm",
  "razorpay_signature": "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
}

Failure Callback

If the payment has failed, the callback will contain details of the error. Refer to

Errors

for details.

1.4 Verify Payment Signature

Signature verification is a mandatory step to ensure that the callback is sent by Curlec. The razorpay_signature contained in the callback can be regenerated by your system and verified as follows.

Create a string to be hashed using the razorpay_payment_id contained in the callback and the Order ID generated in the first step, separated by a |. Hash this string using SHA256 and your API Secret.

generated_signature = hmac_sha256(order_id + "|" + razorpay_payment_id, secret);

if (generated_signature == razorpay_signature) {
    payment is successful
}

Generate Signature on your Server

/**
* This class defines common routines for generating
* authentication signatures for Razorpay Webhook requests.
*/
public class Signature
{
    private static final String HMAC_SHA256_ALGORITHM = "HmacSHA256";
    /**
    * Computes RFC 2104-compliant HMAC signature.
    * * @param data
    * The data to be signed.
    * @param key
    * The signing key.
    * @return
    * The Base64-encoded RFC 2104-compliant HMAC signature.
    * @throws
    * java.security.SignatureException when signature generation fails
    */
    public static String calculateRFC2104HMAC(String data, String secret)
    throws java.security.SignatureException
    {
        String result;
        try {

            // get an hmac_sha256 key from the raw secret bytes
            SecretKeySpec signingKey = new SecretKeySpec(secret.getBytes(), HMAC_SHA256_ALGORITHM);

            // get an hmac_sha256 Mac instance and initialize with the signing key
            Mac mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
            mac.init(signingKey);

            // compute the hmac on input data bytes
            byte[] rawHmac = mac.doFinal(data.getBytes());

            // base64-encode the hmac
            result = DatatypeConverter.printHexBinary(rawHmac).toLowerCase();

        } catch (Exception e) {
            throw new SignatureException("Failed to generate HMAC : " + e.getMessage());
        }
        return result;
    }
}

1.5 Integrate Payments Rainy Day Kit

Use Payments Rainy Day kit to overcome payments exceptions such as:

1.6 Verify Payment Status

Handy Tips

On the Dashboard, ensure that the payment status is captured. Refer to the payment capture settings page to know how to

capture payments automatically

You can track the payment status in three ways:

To verify the payment status from the Dashboard:

Log in to the
Dashboard
and navigate to Transactions → Payments.
Check if a Payment Id has been generated and note the status. In case of a successful payment, the status is marked as Captured.

Check if the payment id is generated and the status is captured

Next Steps

Step 2: Test Integration