Cards Subscriptions Integration - Merchant Hosted Checkout

curl --location --request POST 'https://test.info.payu.in/merchant/postservice.php?form=2' \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --form 'key="BmTY3G"' \
  --form 'command="pre_debit_SI"' \
  --form 'hash="{{hash_value}}"' \
  --form 'var1="{
    \"authpayuid\": \"25511473084\",
    \"requestId\": \"9a900b2f-85e2-4034-aaa9-9c71e1d2af14\",
    \"amount\": \"100.00\",
    \"debitDate\": \"2026-03-20\",
    \"invoiceDisplayNumber\": \"19976ec0-c01f-4f6f-886b-8ea614f5fd83\",
    \"additional_charges\": \"CCSI:10,DCSI:20,AMEXSI:30,HDFCDCSI:40,VISASI:50\",
    \"percentage_additional_charges\": \"CCSI:100,DCSI:90,AMEXSI:80,HDFCDCSI:70,VISASI:60\"
  }"'

{
  "invoiceid": "76323425",
  "approvedStatus": "na",
  "invoiceStatus": "unpaid",
  "amount": "1.00",
  "status": 1,
  "message": "Invoice Created Successfully",
  "action": "MANDATE_PRE_DEBIT"
}

{
  "status": "QC",
  "action": "MANDATE_PRE_DEBIT",
  "message": "MANDATE HAS BEEN REVOKED"
}

{
  "status": 0,
  "action": "MANDATE_PRE_DEBIT",
  "message": "Mandate is not active"
}

curl -X POST "https://test.payu.in/merchant/postservice?form=2" \
-H "accept: application/json" \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "key=JP***g&command=si_transaction&var1={"authpayuid": "6611192557","invoiceDisplayNumber":"12345678910","amount": 3,"txnid": "REC15113506209","phone": "9999999999","email": "[email protected]","udf2": "","udf3": "","udf4": "","udf5": ""}&hash=jbUS07Og8BToVZ"

import requests
import urllib.parse

# PayU API endpoint
url = "https://test.payu.in/merchant/postservice?form=2"

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

# Form data
form_data = {
    "key": "JP***g",
    "command": "si_transaction",
    "var1": '{"authpayuid": "6611192557","invoiceDisplayNumber":"12345678910","amount": 3,"txnid": "REC15113506209","phone": "9999999999","email": "[email protected]","udf2": "","udf3": "","udf4": "","udf5": ""}',
    "hash": "jbUS07Og8BToVZ"
}

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

import java.io.IOException;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.time.Duration;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;

public class PayUApiClient {
    
    private static final HttpClient client = HttpClient.newBuilder()
            .connectTimeout(Duration.ofSeconds(30))
            .build();
    
    public static void main(String[] args) {
        try {
            makePayURequest();
        } catch (Exception e) {
            System.err.println("Error: " + e.getMessage());
        }
    }
    
    public static void makePayURequest() throws IOException, InterruptedException {
        String url = "https://test.payu.in/merchant/postservice?form=2";
        
        // Prepare form data
        Map<String, String> formData = new HashMap<>();
        formData.put("key", "JP***g");
        formData.put("command", "si_transaction");
        formData.put("var1", "{\"authpayuid\": \"6611192557\",\"invoiceDisplayNumber\":\"12345678910\",\"amount\": 3,\"txnid\": \"REC15113506209\",\"phone\": \"9999999999\",\"email\": \"[email protected]\",\"udf2\": \"\",\"udf3\": \"\",\"udf4\": \"\",\"udf5\": \"\"}");
        formData.put("hash", "jbUS07Og8BToVZ");
        
        // Convert to URL encoded string
        String formBody = formData.entrySet().stream()
                .map(entry -> URLEncoder.encode(entry.getKey(), StandardCharsets.UTF_8) + 
                             "=" + URLEncoder.encode(entry.getValue(), StandardCharsets.UTF_8))
                .collect(Collectors.joining("&"));
        
        // Build request
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(url))
                .header("accept", "application/json")
                .header("Content-Type", "application/x-www-form-urlencoded")
                .POST(HttpRequest.BodyPublishers.ofString(formBody))
                .build();
        
        // Send request
        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
        
        System.out.println("Status Code: " + response.statusCode());
        System.out.println("Response: " + response.body());
    }
}

// PayU API call using modern Async/Await Fetch
async function makePayURequest() {
    const url = "https://test.payu.in/merchant/postservice?form=2";
    
    // Headers
    const headers = {
        "accept": "application/json",
        "Content-Type": "application/x-www-form-urlencoded"
    };
    
    // Form data
    const formData = new URLSearchParams({
        "key": "JP***g",
        "command": "si_transaction",
        "var1": '{"authpayuid": "6611192557","invoiceDisplayNumber":"12345678910","amount": 3,"txnid": "REC15113506209","phone": "9999999999","email": "[email protected]","udf2": "","udf3": "","udf4": "","udf5": ""}',
        "hash": "jbUS07Og8BToVZ"
    });
    
    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 {
            status: response.status,
            data: responseText
        };
        
    } catch (error) {
        console.error("Error:", error);
        throw error;
    }
}

// Call the function
makePayURequest()
    .then(result => console.log("Success:", result))
    .catch(error => console.error("Failed:", error));

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/merchant/postservice?form=2";
        
        // Set headers
        client.DefaultRequestHeaders.Add("accept", "application/json");
        
        // Prepare form data
        var formData = new List<KeyValuePair<string, string>>
        {
            new KeyValuePair<string, string>("key", "JP***g"),
            new KeyValuePair<string, string>("command", "si_transaction"),
            new KeyValuePair<string, string>("var1", "{\"authpayuid\": \"6611192557\",\"invoiceDisplayNumber\":\"12345678910\",\"amount\": 3,\"txnid\": \"REC15113506209\",\"phone\": \"9999999999\",\"email\": \"[email protected]\",\"udf2\": \"\",\"udf3\": \"\",\"udf4\": \"\",\"udf5\": \"\"}"),
            new KeyValuePair<string, string>("hash", "jbUS07Og8BToVZ")
        };
        
        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}");
        }
    }
}

// PayU API endpoint
$url = "https://test.payu.in/merchant/postservice?form=2";

// Form data
$postData = [
    'key' => 'JP***g',
    'command' => 'si_transaction',
    'var1' => '{"authpayuid": "6611192557","invoiceDisplayNumber":"12345678910","amount": 3,"txnid": "REC15113506209","phone": "9999999999","email": "[email protected]","udf2": "","udf3": "","udf4": "","udf5": ""}',
    'hash' => 'jbUS07Og8BToVZ'
];

// Initialize cURL
$ch = curl_init();

// Set cURL options
curl_setopt_array($ch, [
    CURLOPT_URL => $url,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => http_build_query($postData),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'accept: application/json',
        'Content-Type: application/x-www-form-urlencoded'
    ],
    CURLOPT_TIMEOUT => 30,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_SSL_VERIFYPEER => false, // Only for testing
]);

// Execute request
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$error = curl_error($ch);

// Close cURL
curl_close($ch);

// Handle response
if ($error) {
    echo "cURL Error: " . $error . PHP_EOL;
} else {
    echo "Status Code: " . $httpCode . PHP_EOL;
    echo "Response: " . $response . PHP_EOL;
}

{
  "status": 1,
  "message": "Transaction Processed successfully",
  "details": {
      "REC15113506209": {
          "authpayuid": "25600342065",
          "transactionid": "REC15113506209",
          "amount": "1.00",
          "user_credentials": "",
          "card_token": "",
          "payuid": "",
          "status": "captured",
          "udf1": "",
          "field9": "Transaction Completed Successfully",
          "udf2": "",
          "udf3": "",
          "udf4": "",
          "udf5": "",
          "phone": "9999999999",
          "email": "[email protected]"
      }
  }
}

{
    "status": 0,
    "msg": "Invalid Hash."
}

{
    "status": 1,
    "message": "Transaction Processed successfully",
    "details": {
        "REC9812123123": {
            "authpayuid": "6611192559",
            "transactionid": "REC9812123123",
            "amount": "1",
            "user_credentials": " ",
            "card_token": " ",
            "payuid": "",
            "status": "failed",
            "field9": "Basic authentication check failed",
            "phone": "",
            "email": ""
        }
    }
}