UPI Omnichannel S2S Integration

curl --location 'https://test.payu.in/_payment' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'key=YOUR_MERCHANT_KEY' \
--data-urlencode 'txnid=TXN_12345' \
--data-urlencode 'amount=10.00' \
--data-urlencode 'productinfo=iPhone' \
--data-urlencode 'firstname=Ashish' \
--data-urlencode '[email protected]' \
--data-urlencode 'phone=9876543210' \
--data-urlencode 'pg=UPI' \
--data-urlencode 'bankcode=UPITEZ' \
--data-urlencode 'vpa=test@okhdfcbank' \
--data-urlencode 'surl=https://apiplayground-response.herokuapp.com/' \
--data-urlencode 'furl=https://apiplayground-response.herokuapp.com/' \
--data-urlencode 's2s_client_ip=10.200.12.12' \
--data-urlencode 's2s_device_info=Mozilla/5.0' \
--data-urlencode 'hash=YOUR_HASH_VALUE'

import requests

url = "https://test.payu.in/_payment"
headers = {"Content-Type": "application/x-www-form-urlencoded"}
data = {
    "key": "YOUR_MERCHANT_KEY",
    "txnid": "TXN_12345",
    "amount": "10.00",
    "productinfo": "iPhone",
    "firstname": "Ashish",
    "email": "[email protected]",
    "phone": "9876543210",
    "pg": "UPI",
    "bankcode": "UPITEZ",
    "vpa": "test@okhdfcbank",
    "surl": "https://apiplayground-response.herokuapp.com/",
    "furl": "https://apiplayground-response.herokuapp.com/",
    "s2s_client_ip": "10.200.12.12",
    "s2s_device_info": "Mozilla/5.0",
    "hash": "YOUR_HASH_VALUE"
}
response = requests.post(url, headers=headers, data=data)
print(response.status_code)
print(response.text)

<?php
$url = "https://test.payu.in/_payment";
$data = http_build_query([
    "key"            => "YOUR_MERCHANT_KEY",
    "txnid"          => "TXN_12345",
    "amount"         => "10.00",
    "productinfo"    => "iPhone",
    "firstname"      => "Ashish",
    "email"          => "[email protected]",
    "phone"          => "9876543210",
    "pg"             => "UPI",
    "bankcode"       => "UPITEZ",
    "vpa"            => "test@okhdfcbank",
    "surl"           => "https://apiplayground-response.herokuapp.com/",
    "furl"           => "https://apiplayground-response.herokuapp.com/",
    "s2s_client_ip"  => "10.200.12.12",
    "s2s_device_info"=> "Mozilla/5.0",
    "hash"           => "YOUR_HASH_VALUE"
]);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["Content-Type: application/x-www-form-urlencoded"]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
echo "Status: " . curl_getinfo($ch, CURLINFO_HTTP_CODE) . "\n";
echo $response;
curl_close($ch);
?>

import java.net.URI;
import java.net.URLEncoder;
import java.net.http.*;
import java.nio.charset.StandardCharsets;
import java.util.*;
public class UpiOmnichannelS2S {
    public static void main(String[] args) throws Exception {
        Map<String, String> params = new LinkedHashMap<>();
        params.put("key","YOUR_MERCHANT_KEY"); params.put("txnid","TXN_12345");
        params.put("amount","10.00"); params.put("productinfo","iPhone");
        params.put("firstname","Ashish"); params.put("email","[email protected]");
        params.put("phone","9876543210"); params.put("pg","UPI");
        params.put("bankcode","UPITEZ"); params.put("vpa","test@okhdfcbank");
        params.put("surl","https://apiplayground-response.herokuapp.com/");
        params.put("furl","https://apiplayground-response.herokuapp.com/");
        params.put("s2s_client_ip","10.200.12.12"); params.put("s2s_device_info","Mozilla/5.0");
        params.put("hash","YOUR_HASH_VALUE");
        StringJoiner sj = new StringJoiner("&");
        for (Map.Entry<String,String> e : params.entrySet())
            sj.add(URLEncoder.encode(e.getKey(),StandardCharsets.UTF_8)+"="+URLEncoder.encode(e.getValue(),StandardCharsets.UTF_8));
        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://test.payu.in/_payment"))
            .header("Content-Type","application/x-www-form-urlencoded")
            .POST(HttpRequest.BodyPublishers.ofString(sj.toString())).build();
        HttpResponse<String> response = client.send(request,HttpResponse.BodyHandlers.ofString());
        System.out.println("Status: "+response.statusCode()); System.out.println(response.body());
    }
}

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
class UpiOmnichannelS2S {
    static async Task Main() {
        using var client = new HttpClient();
        var data = new FormUrlEncodedContent(new Dictionary<string,string> {
            {"key","YOUR_MERCHANT_KEY"},{"txnid","TXN_12345"},{"amount","10.00"},
            {"productinfo","iPhone"},{"firstname","Ashish"},{"email","[email protected]"},
            {"phone","9876543210"},{"pg","UPI"},{"bankcode","UPITEZ"},
            {"vpa","test@okhdfcbank"},
            {"surl","https://apiplayground-response.herokuapp.com/"},
            {"furl","https://apiplayground-response.herokuapp.com/"},
            {"s2s_client_ip","10.200.12.12"},{"s2s_device_info","Mozilla/5.0"},
            {"hash","YOUR_HASH_VALUE"}
        });
        var response = await client.PostAsync("https://test.payu.in/_payment", data);
        Console.WriteLine("Status: "+(int)response.StatusCode);
        Console.WriteLine(await response.Content.ReadAsStringAsync());
    }
}