1. Build Integration

Steps to integrate the Custom Checkout form on your website.


Follow the steps to integrate Custom Checkout in your site:

1.1 Create an Order in your Server.

1.2 Fetch Payment Methods.

1.3 Invoke Checkout and Pass Order Id and Other Options to it.

1.4 Store Fields in your Server.

1.5 Verify Payment Signature.

1.6 Verify Payment Status.

1.1 Create an Order in your Server🔗

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.
  • 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🔗

The following is a sample API request and response for creating an order:

Copycurl -X POST https://api.razorpay.com/v1/orders -u [YOUR_KEY_ID]:[YOUR_KEY_SECRET] -H 'content-type:application/json' -d '{ "amount": 50000, "currency": "INR", "receipt": "rcptid_11" }'
Copytry { JSONObject orderRequest = new JSONObject(); orderRequest.put("amount", 50000); // amount in the smallest currency unit orderRequest.put("currency", "INR"); orderRequest.put("receipt", "order_rcptid_11"); Order order = razorpay.Orders.create(orderRequest); } catch (RazorpayException e) { // Handle Exception System.out.println(e.getMessage()); }
Copyimport razorpay client = razorpay.Client(auth=("api_key", "api_secret")) DATA = { "amount": 100, "currency": "INR", "receipt": "receipt#1", "notes": { "key1": "value3", "key2": "value2" } } client.order.create(data=DATA)
Copy$order = $client->order->create([ 'receipt' => 'order_rcptid_11', 'amount' => 50000, // amount in the smallest currency unit 'currency' => 'INR'// <a href="/docs/international-payments/#supported-currencies" target="_blank">See the list of supported currencies</a>.) ]);
CopyDictionary<string, object> options = new Dictionary<string,object>(); options.Add("amount", 50000); // amount in the smallest currency unit options.add("receipt", "order_rcptid_11"); options.add("currency", "INR"); Order order = client.Order.Create(options);
Copyoptions = amount: 50000, currency: 'INR', receipt: '<order_rcptid_11>' order = Razorpay::Order.create
Copyvar options = { amount: 50000, // amount in the smallest currency unit currency: "INR", receipt: "order_rcptid_11" }; instance.orders.create(options, function(err, order) { console.log(order); });
Copy{ "id": "order_DBJOWzybf0sJbb", "entity": "order", "amount": 50000, "amount_paid": 0, "amount_due": 50000, "currency": "INR", "receipt": "rcptid_11", "status": "created", "attempts": 0, "notes": [], "created_at": 1566986570 }

Request Parameters🔗

Here is the list of parameters and their description for creating an order:

amount mandatory
integer The transaction amount, expressed in the currency subunit, such as paise (in case of INR). For example, for an actual amount of ₹299.35, the value of this field should be 29935.
currency mandatory
string The currency in which the transaction should be made. See the list of supported currencies. Length must be 3 characters.
receipt optional
string Your receipt id for this order should be passed here. Maximum length 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.

Know more about Orders API.

1.2 Fetch Payment Methods🔗

When creating a custom checkout form, display only the activated methods to the customer. Use the below methods to fetch all payments methods available to you:

Copyvar razorpay = new Razorpay({ key: '<YOUR_KEY_ID>', // logo, displayed in the popup image: 'https://i.imgur.com/n5tjHFD.png', }); razorpay.once('ready', function(response) { console.log(response.methods); })
Copy{ "methods": { "entity": "methods", "card": true, "debit_card": true, "credit_card": true, "prepaid_card": true, "card_networks": { "AMEX": 0, "DICL": 1, "MC": 1, "MAES": 1, "VISA": 1, "JCB": 1, "RUPAY": 1, "BAJAJ": 0 }, "amex": false, "netbanking": { ... ... "HDFC": "HDFC Bank", "ICIC": "ICICI Bank" ... ... }, "wallet": { "payzapp": true, "freecharge": true }, "emi": true, "upi": true, "cardless_emi": [], "paylater": [], "emi_subvention": "customer", "emi_options": { ... ... "ICIC": [ { "duration": 3, "interest": 13, "subvention": "customer", "min_amount": 150000 }, { "duration": 6, "interest": 13, "subvention": "customer", "min_amount": 150000 } ...// rest of the emi plans ], "HDFC": [ { "duration": 12, "interest": 14, "subvention": "customer", "min_amount": 300000 }, { "duration": 18, "interest": 15, "subvention": "customer", "min_amount": 300000 } ... ...// rest of the emi plans ] } } }

Know more about the various payment methods offered by Razorpay.

1.3 Invoke Checkout and Pass Order Id and Other Options to it🔗

1.3.1 Include JavaScript code in your Webpage🔗

Include the following script, preferably in the <head> section of your page:

Copy<script type="text/javascript" src="https://checkout.razorpay.com/v1/razorpay.js"></script>

Handy Tips

  • Include the script from https://checkout.razorpay.com/v1/razorpay.js instead of serving a copy from your server. This allows the library's new updates and bug fixes to fit your application automatically.
  • We always maintain backward compatibility with our code.

1.3.2 Instantiate Razorpay Custom Checkout🔗

Single Instance on a Page🔗

Copyvar razorpay = new Razorpay({ key: '<YOUR_KEY_ID>', // logo, displayed in the payment processing popup image: 'https://i.imgur.com/n5tjHFD.png', });

Multiple Instances on Same Page🔗

If you need multiple razorpay instances on the same page, you can globally set some of the options:

CopyRazorpay.configure({ key: '<YOUR_KEY_ID>', // logo, displayed in the payment processing popup image: 'https://i.imgur.com/n5tjHFD.png', }) new Razorpay({}); // will inherit key and image from above.

Checkout Options🔗

While building a custom UI for accepting payments from your customers, you should be familiar with the fields supported in the razorpay.js script.

key mandatory

string API Key ID generated from Razorpay DashboardSettingsAPI Keys.

amount mandatory

integer The amount to be paid by the customer in currency subunits. For example, if the amount is ₹100, enter 10000.

currency mandatory

string The currency in which the payment should be made by the customer. See the list of supported currencies.

name mandatory

string The business name shown in the Checkout form.

description optional

string Description of the purchase item shown in the Checkout form. It must start with an alphanumeric character.

image optional

string Link to an image (usually your business logo) shown in the Checkout form. Can also be a base64 string, if loading the image from a network is not desirable.

order_id mandatory

string Order ID generated via Razorpay Orders API.

notes optional

object Set of key-value pairs that can be used to store additional information about the payment. It can hold a maximum of 15 key-value pairs, each 256 characters long (maximum).

method mandatory

string The payment method used by the customer on Checkout.
Possible values:

  • card (default)
  • upi (default)
  • netbanking (default)
  • wallet (default)
  • emi (default)
  • cardless_emi (requires approval)
  • paylater (requires approval)
  • emandate (requires approval)
card mandatory if method=card/emi

object The details of the card that should be entered while making the payment.

number
integer Unformatted card number.
name
string The name of the cardholder.
expiry_month
integer Expiry month for card in MM format.
expiry_year
integer Expiry year for card in YY format.
cvv
integer CVV printed on the back of the card.
emi_duration
integer Defines the number of months in the EMI plan.
bank_account mandatory if method=emandate

The details of the bank account that should be passed in the request.

account_number
string Bank account number used to initiate the payment.
ifsc
string IFSC of the bank used to initiate the payment.
name
string Name associated with the bank account used to initiate the payment.
bank mandatory if method=netbanking

string Bank code. List of available banks enabled for your account can be fetched via methods.

wallet mandatory if method=wallet

string Wallet code for the wallet used for the payment. Possible values:

provider mandatory if method=cardless_emi/paylater

string Name of the cardless EMI provider partnered with Razorpay.

Available options for Cardless EMI (requires approval):

  • zestmoney
  • earlysalary
  • hdfc
  • barb
  • kkbk
  • icic
  • idfb
  • fdrl
  • hcin

Available options for Pay Later:

vpa mandatory if method=upi

string UPI ID used for making the payment on the UPI app.

callback_url optional

string The URL to which the customer must be redirected upon completion of payment. The URL must accept incoming POST requests. The callback URL will have razorpay_payment_id, razorpay_order_id and razorpay_signature as the request parameters for a successful payment.

redirect conditionally mandatory

boolean Determines whether customer should be redirected to the URL mentioned in the callback_url parameter. This is mandatory if callback_url parameter is used. Possible values:

  • true: Customer will be redirected to the callback_url.
  • false: Customer will not be redirected to the callback_url

1.3.3 Submit Payment Details🔗

After creating an order and obtaining the customer's payment details, send the information to Razorpay to complete the payment. The data that needs to be submitted depends on the customer's payment method. You can do this by invoking createPayment method.

Know more about sample codes for various payment methods.

Copyvar data = { amount: 1000, // in currency subunits. Here 1000 = 1000 paise, which equals to ₹10 currency: "INR",// Default is INR. We support more than 90 currencies. email: 'gaurav.kumar@example.com', contact: '9123456780', notes: { address: 'Ground Floor, SJR Cyber, Laskar Hosur Road, Bengaluru', }, order_id: 'order_CuEzONfnOI86Ab',// Replace with Order ID generated in Step 4 method: 'netbanking', // method specific fields bank: 'HDFC' }; var btn = document.querySelector('#btn'); btn.addEventListener('click', function(){ // has to be placed within user initiated context, such as click, in order for popup to open. razorpay.createPayment(data); razorpay.on('payment.success', function(resp) { alert(resp.razorpay_payment_id), alert(resp.razorpay_order_id), alert(resp.razorpay_signature)}); // will pass payment ID, order ID, and Razorpay signature to success handler. razorpay.on('payment.error', function(resp){alert(resp.error.description)}); // will pass error object to error handler })
Copyvar data = { callback_url: 'https://www.examplecallbackurl.com/', amount: 1000, // in currency subunits. Here 1000 = 1000 paise, which equals to ₹10 currency: "INR",// Default is INR. We support more than 90 currencies. email: 'gaurav.kumar@example.com', contact: '9123456780', notes: { address: 'Ground Floor, SJR Cyber, Laskar Hosur Road, Bengaluru', }, order_id: 'order_CuEzONfnOI86Ab',// Replace with Order ID generated in Step 4 method: 'netbanking', // method specific fields bank: 'HDFC' }; var btn = document.querySelector('#btn'); btn.addEventListener('click', function(){ // has to be placed within user initiated context, such as click, in order for popup to open. razorpay.createPayment(data); })

Watch Out!
The createPayment method should be called within an event listener triggered by user action to prevent the popup from being blocked. For example:
js $('button').click( function (){ razorpay.createPayment(...) })

Handy Tips

  • Handler Function
    When you use the handler function, the response object of the successful payment (razorpay_payment_id, razorpay_order_id and razorpay_signature) is submitted to the Checkout Form. You need to collect these and send them to your server.
  • Callback URL
    When you use a callback URL, Razorpay makes a post call to the callback URL, with the razorpay_payment_id, razorpay_order_id and razorpay_signature in the response object of the successful payment (razorpay_payment_id, razorpay_order_id.

1.4 Store Fields in your Server🔗

A successful payment returns the following fields to the Checkout form.

  • You need to store these fields in your server.

  • You can confirm the authenticity of these details by verifying the signature in the next step.

Copy{ "razorpay_payment_id": "pay_29QQoUBi66xm2f", "razorpay_order_id": "order_9A33XWu170gUtm", "razorpay_signature": "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d" }
razorpay_payment_id
string Unique identifier for the payment returned by Checkout only for successful payments.
razorpay_order_id
string Unique identifier for the order returned by Checkout.
razorpay_signature
string Signature returned by the Checkout. This is used to verify the payment.

A failed payment returns an error response.

Copy{ "error": { "code": "BAD_REQUEST_ERROR", "description": "Authentication failed due to incorrect otp", "field": null, "source": "customer", "step": "payment_authentication", "reason": "invalid_otp", "metadata": { "payment_id": "pay_EDNBKIP31Y4jl8", "order_id": "order_DBJKIP31Y4jl8" } } }

Know more about Error Codes.

1.5 Verify Payment Signature🔗

This is a mandatory step to confirm the authenticity of the details returned to the Checkout form for successful payments.

To verify the razorpay_signature returned to you by the Checkout form:

  1. Create a signature in your server using the following attributes:

    • order_id: Retrieve the order_id from your server. Do not use the razorpay_order_id returned by Checkout.
    • razorpay_payment_id: Returned by Checkout.
    • key_secret: Available in your server.
      The key_secret that was generated from the Razorpay Dashboard.
  2. Use the SHA256 algorithm, the razorpay_payment_id and the order_id to construct a HMAC hex digest as shown below:

    Copygenerated_signature = hmac_sha256(order_id + "|" + razorpay_payment_id, secret); if (generated_signature == razorpay_signature) { payment is successful }
  3. If the signature you generate on your server matches the razorpay_signature returned to you by the Checkout form, the payment received is from an authentic source.

Generate Signature on Your Server🔗

Given below are the sample codes for payment signature verification.

Copy/** * 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; } }
Copyuse Razorpay\Api\Api; $api = new Api($key_id, $key_secret); $attributes = array('razorpay_signature' => '23233', 'razorpay_payment_id' => '332' , 'razorpay_order_id' => '12122'); $order = $api->utility->verifyPaymentSignature($attributes)
Copyrequire 'razorpay' Razorpay.setup('key_id', 'key_secret') payment_response = { 'razorpay_order_id': '12122', 'razorpay_payment_id': '332', 'razorpay_signature': '23233' } Razorpay::Utility.verify_payment_signature(payment_response)
Copyimport razorpay client = razorpay.Client(auth=("YOUR_ID", "YOUR_SECRET")) client.utility.verify_payment_signature({ 'razorpay_order_id': razorpay_order_id, 'razorpay_payment_id': razorpay_payment_id, 'razorpay_signature': razorpay_signature })
Copy Dictionary<string, string> attributes = new Dictionary<string, string>(); attributes.Add("razorpay_payment_id", paymentId); attributes.Add("razorpay_order_id", Request.Form["razorpay_order_id"]); attributes.Add("razorpay_signature", Request.Form["razorpay_signature"]); Utils.verifyPaymentSignature(attributes);
Copyvar { validatePaymentVerification } = require('./dist/utils/razorpay-utils'); validatePaymentVerification({"order_id": razorpayOrderId, "payment_id": razorpayPaymentId }, signature, secret);
Copyimport ( "crypto/hmac" "crypto/sha256" "crypto/subtle" "encoding/hex" "fmt" ) func main() { signature := "477d1cdb3f8122a7b0963704b9bcbf294f65a03841a5f1d7a4f3ed8cd1810f9b" secret := "qp3zKxwLZxbMORJgEVWi3Gou" data := "order_J2AeF1ZpvfqRGH|pay_J2AfAxNHgqqBiI" //fmt.Printf("Secret: %s Data: %s\n", secret, data) // Create a new HMAC by defining the hash type and the key (as byte array) h := hmac.New(sha256.New, []byte(secret)) // Write Data to it _, err := h.Write([]byte(data)) if err != nil { panic(err) } // Get result and encode as hexadecimal string sha := hex.EncodeToString(h.Sum(nil)) fmt.Printf("Result: %s\n", sha) if subtle.ConstantTimeCompare([]byte(sha), []byte(signature)) == 1 { fmt.Println("Works") } }

Post Signature Verification🔗

After you have successfully completed the integration, you can set up webhooks, make test payments, replace test key with live key and integrate with other APIs.

1.5 Verify Payment Status🔗

You can track the payment status from the Razorpay Dashboard, subscribe to the Webhook event or poll our APIs.

Verify Payment Status From Dashboard🔗

  1. Log into the Dashboard and navigate to TransactionsPayments.
  2. Check if a payment_ID has been generated and note the status. In case of a successful payment, the status is marked as captured.

Subscribe to Webhook events🔗

You can use Razorpay Webhooks to configure and receive notifications when a specific event occurs. When one of these events is triggered, we send an HTTP POST payload in JSON to the webhook's configured URL. Know how to set up Webhooks.

Example🔗

If you have subscribed to the order.paid webhook event, you will receive a notification every time a customer pays you for an order.

Poll APIs🔗

Poll Payment APIs to check the payment status.

×