Wallets Integration

You can collect payments from customers with leading wallets using the Merchant Hosted integration. You need to ensure that CASH for the pg parameter and wallet code based on the desired wallet for the bankcode parameter is posted as mentioned in Collect Payment API - Merchant Hosted Checkout.

Steps to Integrate

1. Initiate the Payment to PayU

Initiate the payment to PayU with pg=CASH and bankcode=<based on wallet provider>

2. Check response from PayU

Check the response from PayU

3. Verify the payment

Verify the payment using verify_payment and monitor using webhooks

👍
Before you begin:
Register for an account with PayU before you start integration. For more information, refer to Register for a Merchant Account.

Step 1: Initiate the payment to PayU

Post Request Syntax & Composition

<body>
<form action='https://test.payu.in/_payment' method='post'>
<input type="hidden" name="key" value="JP***g" />
<input type="hidden" name="txnid" value="t6svtqtjRdl34W" />
<input type="hidden" name="productinfo" value="iPhone" />
<input type="hidden" name="amount" value="10" />
<input type="hidden" name="email" value="[email protected]" />
<input type="hidden" name="firstname" value="Ashish" />
<input type="hidden" name="lastname" value="Kumar" />
<input type="hidden" name="pg" value="CASH" />
<input type="hidden" name="bankcode" value="PAYTM" />
<input type="hidden" name="surl" value="your own success url" />
<input type="hidden" name="furl" value="your own failure url" />
<input type="hidden" name="phone" value="9988776655" />
<input type="hidden" name="hash" value="eabec285da28fd0e3054d41a4d24fe9f7599c9d0b66646f7a9984303fd6124044b6206daf831e9a8bda28a6200d318293a13d6c193109b60bd4b4f8b09c90972" />
<input type="submit" value="submit"> </form>
</body>
</html>

📘
Note
The above HTML code block is for Merchant Checkout integration on the Wallet call for the test environment.

Request parameters

The following parameters vary for the Wallet payment mode in the Collect Payment API (_payment API).

Environment


Test Environment	https://test.payu.in/_payment
Production Environment	https://secure.payu.in/_payment

📘
Reference: For the Try It experience and response, refer to Collect Payment API - Merchant Hosted Checkout under API Reference.

Parameter	Description	Example
key `mandatory`	String - Merchant key provided by PayU during onboarding.	JP***g
txnid `mandatory`	String - The transaction ID is a reference number for a specific order that is generated by the merchant.	ypl938459435
amount `mandatory`	String - The payment amount for the transaction.	10.00
productinfo `mandatory`	String - A brief description of the product.	iPhone
firstname `mandatory`	String - The first name of the customer.	Ashish
email `mandatory`	String - The email address of the customer.	[email protected]
phone `mandatory`	String - The phone number of the customer.	9876543210
pg `mandatory`	String - It defines the payment category using the Merchant Hosted Checkout integration. For the list of wallet codes, refer to For a Wallet payment, "CASH" must be specified in the pg parameter.	CASH
bankcode `mandatory`	String - The merchant must post this parameter with the corresponding payment option's bank code value in it. For all the supported wallets, refer to Wallet Codes to understand exact value which needs to be passed against bankcode parameter.	PAYTM
furl `mandatory`	String - The success URL, which is the page PayU will redirect to if the transaction is successful.	https://example.com/success
surl `mandatory`	String - The Failure URL, which is the page PayU will redirect to if the transaction is failed.	https://example.com/failure
hash `mandatory`	String - It is the hash calculated by the merchant. The hash calculation logic is: sha512(key\\|txnid\\|amount\\|productinfo\\|firstname\\|email\\|udf1\\|udf2\\|udf3\\|udf4\\|udf5\\|\\|\\|\\|\\|\\|SALT)	calculated_hash_value

Understanding Hashing and sample code

Hashing

You must hash the request parameters using the following hash logic:

sha512(key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5||||||SALT)

For more information, refer to Generate Hash.

Hashing Sample Code

<?php
function generateHash($params, $salt) {
    // Extract parameters or use empty string if not provided
    $key = $params['key'];
    $txnid = $params['txnid'];
    $amount = $params['amount'];
    $productinfo = $params['productinfo'];
    $firstname = $params['firstname'];
    $email = $params['email'];
    $udf1 = isset($params['udf1']) ? $params['udf1'] : '';
    $udf2 = isset($params['udf2']) ? $params['udf2'] : '';
    $udf3 = isset($params['udf3']) ? $params['udf3'] : '';
    $udf4 = isset($params['udf4']) ? $params['udf4'] : '';
    $udf5 = isset($params['udf5']) ? $params['udf5'] : '';
    
    // Construct hash string with exact parameter sequence
    $hashString = $key . '|' . $txnid . '|' . $amount . '|' . $productinfo . '|' . 
                  $firstname . '|' . $email . '|' . $udf1 . '|' . $udf2 . '|' . 
                  $udf3 . '|' . $udf4 . '|' . $udf5 . '||||||' . $salt;
    
    // Generate hash and convert to lowercase
    return strtolower(hash('sha512', $hashString));
}

// Example usage
$params = [
    'key' => 'yourKey',
    'txnid' => 'yourTxnId',
    'amount' => 'yourAmount',
    'productinfo' => 'yourProductInfo',
    'firstname' => 'yourFirstName',
    'email' => 'yourEmail',
    'udf1' => 'optional_value1'
    // udf2, udf3, udf4, udf5 not provided - will be empty strings
];
$salt = 'yourSalt';

$hash = generateHash($params, $salt);
echo 'Generated Hash: ' . $hash;
?>

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;

public class ImprovedHashGenerator {

    public static String generateHash(Map<String, String> params, String salt) {
        // Extract parameters or use empty string if not provided
        String key = params.get("key");
        String txnid = params.get("txnid");
        String amount = params.get("amount");
        String productinfo = params.get("productinfo");
        String firstname = params.get("firstname");
        String email = params.get("email");
        String udf1 = params.getOrDefault("udf1", "");
        String udf2 = params.getOrDefault("udf2", "");
        String udf3 = params.getOrDefault("udf3", "");
        String udf4 = params.getOrDefault("udf4", "");
        String udf5 = params.getOrDefault("udf5", "");
        
        // Construct hash string with exact parameter sequence
        String hashString = key + "|" + txnid + "|" + amount + "|" + productinfo + "|" + 
                         firstname + "|" + email + "|" + udf1 + "|" + udf2 + "|" + 
                         udf3 + "|" + udf4 + "|" + udf5 + "||||||" + salt;
        
        return sha512(hashString);
    }

    private static String sha512(String input) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-512");
            byte[] hashBytes = md.digest(input.getBytes(StandardCharsets.UTF_8));
            StringBuilder sb = new StringBuilder();
            for (byte b : hashBytes) {
                sb.append(String.format("%02x", b));
            }
            return sb.toString().toLowerCase();
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        }
    }

    public static void main(String[] args) {
        // Example usage with parameters map
        Map<String, String> params = new HashMap<>();
        params.put("key", "yourKey");
        params.put("txnid", "yourTxnId");
        params.put("amount", "yourAmount");
        params.put("productinfo", "yourProductInfo");
        params.put("firstname", "yourFirstName");
        params.put("email", "yourEmail");
        params.put("udf1", "optional_value1");
        // udf2, udf3, udf4, udf5 not provided - will be empty strings
        
        String salt = "yourSalt";

        String hash = generateHash(params, salt);
        System.out.println("Generated Hash: " + hash);
    }
}

using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;

public class ImprovedHashGenerator
{
    public static string GenerateHash(Dictionary<string, string> parameters, string salt)
    {
        // Extract parameters or use empty string if not provided
        string key = parameters["key"];
        string txnid = parameters["txnid"];
        string amount = parameters["amount"];
        string productinfo = parameters["productinfo"];
        string firstname = parameters["firstname"];
        string email = parameters["email"];
        
        // Get UDF values if present, otherwise use empty string
        string udf1 = parameters.ContainsKey("udf1") ? parameters["udf1"] : "";
        string udf2 = parameters.ContainsKey("udf2") ? parameters["udf2"] : "";
        string udf3 = parameters.ContainsKey("udf3") ? parameters["udf3"] : "";
        string udf4 = parameters.ContainsKey("udf4") ? parameters["udf4"] : "";
        string udf5 = parameters.ContainsKey("udf5") ? parameters["udf5"] : "";
        
        // Construct hash string with exact parameter sequence
        string hashString = $"{key}|{txnid}|{amount}|{productinfo}|{firstname}|{email}|{udf1}|{udf2}|{udf3}|{udf4}|{udf5}||||||{salt}";
        
        return Sha512(hashString);
    }

    private static string Sha512(string input)
    {
        using (SHA512 sha512 = SHA512.Create())
        {
            byte[] bytes = sha512.ComputeHash(Encoding.UTF8.GetBytes(input));
            StringBuilder sb = new StringBuilder();
            foreach (byte b in bytes)
            {
                sb.Append(b.ToString("x2"));
            }
            return sb.ToString().ToLower();
        }
    }

    public static void Main(string[] args)
    {
        // Example usage with parameters dictionary
        Dictionary<string, string> parameters = new Dictionary<string, string>
        {
            ["key"] = "yourKey",
            ["txnid"] = "yourTxnId",
            ["amount"] = "yourAmount",
            ["productinfo"] = "yourProductInfo",
            ["firstname"] = "yourFirstName",
            ["email"] = "yourEmail",
            ["udf1"] = "optional_value1"
            // udf2, udf3, udf4, udf5 not provided - will be empty strings
        };
        
        string salt = "yourSalt";

        string hash = GenerateHash(parameters, salt);
        Console.WriteLine("Generated Hash: " + hash);
    }
}

import hashlib

def generate_hash(params, salt):
    # Extract parameters or use empty string if not provided
    key = params['key']
    txnid = params['txnid']
    amount = params['amount']
    productinfo = params['productinfo']
    firstname = params['firstname']
    email = params['email']
    udf1 = params.get('udf1', '')
    udf2 = params.get('udf2', '')
    udf3 = params.get('udf3', '')
    udf4 = params.get('udf4', '')
    udf5 = params.get('udf5', '')
    
    # Construct hash string with exact parameter sequence
    hash_string = f"{key}|{txnid}|{amount}|{productinfo}|{firstname}|{email}|{udf1}|{udf2}|{udf3}|{udf4}|{udf5}||||||{salt}"
    
    # Generate SHA-512 hash
    return hashlib.sha512(hash_string.encode('utf-8')).hexdigest()

# Example usage
params = {
    'key': 'yourKey',
    'txnid': 'yourTxnId',
    'amount': 'yourAmount',
    'productinfo': 'yourProductInfo',
    'firstname': 'yourFirstName',
    'email': 'yourEmail',
    'udf1': 'optional_value1'
    # udf2, udf3, udf4, udf5 not provided - will default to empty strings
}
salt = 'yourSalt'

hash_value = generate_hash(params, salt)
print("Generated Hash:", hash_value)

const crypto = require('crypto');

function generateHash(params, salt) {
    // Extract parameters or use empty string if not provided
    const key = params.key;
    const txnid = params.txnid;
    const amount = params.amount;
    const productinfo = params.productinfo;
    const firstname = params.firstname;
    const email = params.email;
    const udf1 = params.udf1 || '';
    const udf2 = params.udf2 || '';
    const udf3 = params.udf3 || '';
    const udf4 = params.udf4 || '';
    const udf5 = params.udf5 || '';
    
    // Construct hash string with exact parameter sequence
    const hashString = `${key}|${txnid}|${amount}|${productinfo}|${firstname}|${email}|${udf1}|${udf2}|${udf3}|${udf4}|${udf5}||||||${salt}`;
    
    // Generate SHA-512 hash
    return crypto.createHash('sha512').update(hashString).digest('hex');
}

// Example usage
const params = {
    key: 'yourKey',
    txnid: 'yourTxnId',
    amount: 'yourAmount',
    productinfo: 'yourProductInfo',
    firstname: 'yourFirstName',
    email: 'yourEmail',
    udf1: 'optional_value1'
    // udf2, udf3, udf4, udf5 not provided - will default to empty strings
};
const salt = 'yourSalt';

const hash = generateHash(params, salt);
console.log("Generated Hash:", hash);

Sample request

curl -X POST "https://test.payu.in/_payment"  -H "accept: application/json"  -H "Content-Type: application/x-www-form-urlencoded"  -d "key=J****g&txnid=aI1UM19ONxLgPz&amount=10.00&firstname=Ashish&[email protected]&phone=9876543210&productinfo=iPhone&pg=cash&bankcode=paytm&surl=https://apiplayground-response.herokuapp.com/&furl=https://apiplayground-response.herokuapp.com/&hash=6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa"

import requests

url = "https://test.payu.in/_payment"

headers = {
    "accept": "application/json",
    "Content-Type": "application/x-www-form-urlencoded"
}

data = {
    "key": "J****g",
    "txnid": "aI1UM19ONxLgPz",
    "amount": "10.00",
    "firstname": "Ashish",
    "email": "[email protected]",
    "phone": "9876543210",
    "productinfo": "iPhone",
    "pg": "cash",
    "bankcode": "paytm",
    "surl": "https://apiplayground-response.herokuapp.com/",
    "furl": "https://apiplayground-response.herokuapp.com/",
    "hash": "6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa"
}

try:
    response = requests.post(url, headers=headers, data=data)
    print(f"Status Code: {response.status_code}")
    print(f"Response: {response.text}")
except requests.exceptions.RequestException as e:
    print(f"Error: {e}")

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    private static readonly HttpClient client = new HttpClient();

    static async Task Main(string[] args)
    {
        string url = "https://test.payu.in/_payment";
        
        // Set headers
        client.DefaultRequestHeaders.Add("accept", "application/json");
        
        // Prepare form data
        var formData = new List<KeyValuePair<string, string>>
        {
            new KeyValuePair<string, string>("key", "J****g"),
            new KeyValuePair<string, string>("txnid", "aI1UM19ONxLgPz"),
            new KeyValuePair<string, string>("amount", "10.00"),
            new KeyValuePair<string, string>("firstname", "Ashish"),
            new KeyValuePair<string, string>("email", "[email protected]"),
            new KeyValuePair<string, string>("phone", "9876543210"),
            new KeyValuePair<string, string>("productinfo", "iPhone"),
            new KeyValuePair<string, string>("pg", "cash"),
            new KeyValuePair<string, string>("bankcode", "paytm"),
            new KeyValuePair<string, string>("surl", "https://apiplayground-response.herokuapp.com/"),
            new KeyValuePair<string, string>("furl", "https://apiplayground-response.herokuapp.com/"),
            new KeyValuePair<string, string>("hash", "6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa")
        };

        var formContent = new FormUrlEncodedContent(formData);

        try
        {
            HttpResponseMessage response = await client.PostAsync(url, formContent);
            string responseContent = await response.Content.ReadAsStringAsync();
            
            Console.WriteLine($"Status Code: {response.StatusCode}");
            Console.WriteLine($"Response: {responseContent}");
        }
        catch (HttpRequestException e)
        {
            Console.WriteLine($"Error: {e.Message}");
        }
    }
}

async function makePaymentRequest() {
    const url = "https://test.payu.in/_payment";
    
    const headers = {
        "accept": "application/json",
        "Content-Type": "application/x-www-form-urlencoded"
    };
    
    // Prepare form data
    const formData = new URLSearchParams({
        "key": "J****g",
        "txnid": "aI1UM19ONxLgPz",
        "amount": "10.00",
        "firstname": "Ashish",
        "email": "[email protected]",
        "phone": "9876543210",
        "productinfo": "iPhone",
        "pg": "cash",
        "bankcode": "paytm",
        "surl": "https://apiplayground-response.herokuapp.com/",
        "furl": "https://apiplayground-response.herokuapp.com/",
        "hash": "6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa"
    });
    
    try {
        const response = await fetch(url, {
            method: "POST",
            headers: headers,
            body: formData
        });
        
        const responseText = await response.text();
        
        console.log(`Status: ${response.status}`);
        console.log(`Response: ${responseText}`);
        
        return response;
    } catch (error) {
        console.error(`Error: ${error.message}`);
        throw error;
    }
}

// Call the function
makePaymentRequest();

☕ Java (using HttpURLConnection)

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;

public class PaymentRequest {
    public static void main(String[] args) {
        try {
            String url = "https://test.payu.in/_payment";
            URL obj = new URL(url);
            HttpURLConnection connection = (HttpURLConnection) obj.openConnection();
            
            // Set request method and headers
            connection.setRequestMethod("POST");
            connection.setRequestProperty("accept", "application/json");
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            connection.setDoOutput(true);
            
            // Prepare form data
            String formData = "key=" + URLEncoder.encode("J****g", StandardCharsets.UTF_8) +
                    "&txnid=" + URLEncoder.encode("aI1UM19ONxLgPz", StandardCharsets.UTF_8) +
                    "&amount=" + URLEncoder.encode("10.00", StandardCharsets.UTF_8) +
                    "&firstname=" + URLEncoder.encode("Ashish", StandardCharsets.UTF_8) +
                    "&email=" + URLEncoder.encode("[email protected]", StandardCharsets.UTF_8) +
                    "&phone=" + URLEncoder.encode("9876543210", StandardCharsets.UTF_8) +
                    "&productinfo=" + URLEncoder.encode("iPhone", StandardCharsets.UTF_8) +
                    "&pg=" + URLEncoder.encode("cash", StandardCharsets.UTF_8) +
                    "&bankcode=" + URLEncoder.encode("paytm", StandardCharsets.UTF_8) +
                    "&surl=" + URLEncoder.encode("https://apiplayground-response.herokuapp.com/", StandardCharsets.UTF_8) +
                    "&furl=" + URLEncoder.encode("https://apiplayground-response.herokuapp.com/", StandardCharsets.UTF_8) +
                    "&hash=" + URLEncoder.encode("6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa", StandardCharsets.UTF_8);
            
            // Send request
            try (OutputStream os = connection.getOutputStream()) {
                byte[] input = formData.getBytes(StandardCharsets.UTF_8);
                os.write(input, 0, input.length);
            }
            
            // Get response
            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);
            
            try (BufferedReader br = new BufferedReader(new InputStreamReader(
                    responseCode >= 200 && responseCode < 300 ? connection.getInputStream() : connection.getErrorStream(),
                    StandardCharsets.UTF_8))) {
                StringBuilder response = new StringBuilder();
                String responseLine;
                while ((responseLine = br.readLine()) != null) {
                    response.append(responseLine.trim());
                }
                System.out.println("Response: " + response.toString());
            }
            
        } catch (Exception e) {
            System.err.println("Error: " + e.getMessage());
            e.printStackTrace();
        }
    }
}

$url = "https://test.payu.in/_payment";

$headers = [
    "accept: application/json",
    "Content-Type: application/x-www-form-urlencoded"
];

$data = [
    "key" => "J****g",
    "txnid" => "aI1UM19ONxLgPz",
    "amount" => "10.00",
    "firstname" => "Ashish",
    "email" => "[email protected]",
    "phone" => "9876543210",
    "productinfo" => "iPhone",
    "pg" => "cash",
    "bankcode" => "paytm",
    "surl" => "https://apiplayground-response.herokuapp.com/",
    "furl" => "https://apiplayground-response.herokuapp.com/",
    "hash" => "6840ba0d1a14554f7ee5d20966dfbac6b221718e72dd823f05b6da01420286315b4956c28325898b66520b111604020ea2c547608606674766eb7e4164dc0baa"
];

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if (curl_errno($ch)) {
    echo 'Error: ' . curl_error($ch);
} else {
    echo "Status Code: " . $httpCode . "\n";
    echo "Response: " . $response . "\n";
}

curl_close($ch);
?>

Step 2: Check response from PayU

Hash validation logic for payment response (Reverse Hashing)

While sending the response, PayU takes the exact same parameters that were sent in the request (in reverse order) to calculate the hash and returns it to you. You must verify the hash and then mark a transaction as a success or failure. This is to make sure the transaction has not tampered within the response.

The order of the parameters is similar to the following code block:

sha512(SALT|status||||||udf5|udf4|udf3|udf2|udf1|email|firstname|productinfo|amount|txnid|key)

Sample response

Array
(
    [mihpayid] => 403993715527518775
    [mode] => CASH
    [status] => success
    [unmappedstatus] => captured
    [key] => J*****g
    [txnid] => HC13glcAkssIkl
    [amount] => 10.00
    [discount] => 0.00
    [net_amount_debit] => 10
    [addedon] => 2022-10-21 17:45:24
    [productinfo] => iPhone
    [firstname] => Ashish
    [lastname] => 
    [address1] => 
    [address2] => 
    [city] => 
    [state] => 
    [country] => 
    [zipcode] => 
    [email] => [email protected]
    [phone] => 9876543210
    [udf1] => 
    [udf2] => 
    [udf3] => 
    [udf4] => 
    [udf5] => 
    [udf6] => 
    [udf7] => 
    [udf8] => 
    [udf9] => 
    [udf10] => 
    [hash] => 007435a716982c7f5eec5cff95701f65eb1bdbff8f852e461224e3b5e17126ad26bb3a3ffdb95cded6a87d3515fe86fc58925cad024595a4a6825adfed2dc436
    [field1] => 
    [field2] => 
    [field3] => 
    [field4] => 
    [field5] => 
    [field6] => 
    [field7] => 
    [field8] => 
    [field9] => Transaction Completed Successfully
    [payment_source] => payu
    [PG_TYPE] => CASH-PG
    [bank_ref_num] => 540898ed-72e7-40a8-a96e-f17de621cbb4
    [bankcode] => CASH
    [error] => E000
    [error_Message] => No Error
    [splitInfo] => {"splitStatus":"splitNotReceived","splitSegments":[]}
)

Step 3: Verify the payment

Upon receiving the response, we recommend performing a reconciliation step to validate all transaction details.
You can verify your payments using either of the following methods:

Configure the webhooks to monitor the status of payments.
Webhooks enable a server to communicate with another server by sending an HTTP callback or message.
These callbacks are triggered by specific events or instances and operate at the server-to-server (S2S) level.

👉 For more details, refer to Webhooks for Payments.

Recommended integrations for Wallets

Recurring Payments: Enable recurring payments or subscriptions for wallets. For more information, refer to Recurring Payments Integration.
Offers: Configure offers for cards on Dashboard and then collect payments with offers. For more information, refer to Create an Instant Discount or Cashback Offer and Offers.

Updated 22 days ago

Before you begin:

Step 1: Initiate the payment to PayU

Note

Hashing

Hashing Sample Code

☕ Java (using HttpURLConnection)

Step 2: Check response from PayU

Hash validation logic for payment response (Reverse Hashing)

Step 3: Verify the payment

Recommended integrations for Wallets

EXAMPLE QUESTIONS