Verify Payment Status

curl -X POST 'https://securegw-stage.paytm.in/v3/order/status' \
--header 'Content-Type: application/json' \
--data '{"body":{"mid":"{mid}","orderId":"{order-id}"},"head":{"signature":"{signature}"}}'

/* initialize an object */
JSONObject paytmParams = new JSONObject();

/* body parameters */
JSONObject body = new JSONObject();

/* Find your MID in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys */
body.put("mid", "YOUR_MID_HERE");

/* Enter your order id which needs to be check status for */
body.put("orderId", "YOUR_ORDER_ID");

/**
* Generate checksum by parameters we have in body
* You can get Checksum JAR from https://developer.paytm.com/docs/checksum/
* Find your Merchant Key in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys 
*/
String checksum = PaytmChecksum.generateSignature(body.toString(), "YOUR_MERCHANT_KEY");
/* head parameters */
JSONObject head = new JSONObject();

/* put generated checksum value here */
head.put("signature", checksum);

/* prepare JSON string for request */
paytmParams.put("body", body);
paytmParams.put("head", head);
String post_data = paytmParams.toString();

/* for Staging */
URL url = new URL("https://securegw-stage.paytm.in/v3/order/status");

/* for Production */
// URL url = new URL("https://securegw.paytm.in/v3/order/status");

try {
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setDoOutput(true);

    DataOutputStream requestWriter = new DataOutputStream(connection.getOutputStream());
    requestWriter.writeBytes(post_data);
    requestWriter.close();
    String responseData = "";
    InputStream is = connection.getInputStream();
    BufferedReader responseReader = new BufferedReader(new InputStreamReader(is));
    if ((responseData = responseReader.readLine()) != null) {
        System.out.append("Response: " + responseData);
    }
    // System.out.append("Request: " + post_data);
    responseReader.close();
} catch (Exception exception) {
    exception.printStackTrace();
}

const https = require('https');
/**
* import checksum generation utility
* You can get this utility from https://developer.paytm.com/docs/checksum/
*/
const PaytmChecksum = require('./PaytmChecksum');

/* initialize an object */
var paytmParams = {};

/* body parameters */
paytmParams.body = {

    /* Find your MID in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys */
    "mid" : "YOUR_MID_HERE",

    /* Enter your order id which needs to be check status for */
    "orderId" : "YOUR_ORDER_ID",
};

/**
* Generate checksum by parameters we have in body
* Find your Merchant Key in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys 
*/
PaytmChecksum.generateSignature(JSON.stringify(paytmParams.body), "YOUR_MERCHANT_KEY").then(function(checksum){
    /* head parameters */
    paytmParams.head = {

        /* put generated checksum value here */
        "signature"	: checksum
    };

    /* prepare JSON string for request */
    var post_data = JSON.stringify(paytmParams);

    var options = {

        /* for Staging */
        hostname: 'securegw-stage.paytm.in',

        /* for Production */
        // hostname: 'securegw.paytm.in',

        port: 443,
        path: '/v3/order/status',
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'Content-Length': post_data.length
        }
    };

    // Set up the request
    var response = "";
    var post_req = https.request(options, function(post_res) {
        post_res.on('data', function (chunk) {
            response += chunk;
        });

        post_res.on('end', function(){
            console.log('Response: ', response);
        });
    });

    // post the data
    post_req.write(post_data);
    post_req.end();
});

<?php
/**
* import checksum generation utility
* You can get this utility from https://developer.paytm.com/docs/checksum/
*/
require_once("PaytmChecksum.php");

/* initialize an array */
$paytmParams = array();

/* body parameters */
$paytmParams["body"] = array(

    /* Find your MID in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys */
    "mid" => "YOUR_MID_HERE",

    /* Enter your order id which needs to be check status for */
    "orderId" => "YOUR_ORDER_ID",
);

/**
* Generate checksum by parameters we have in body
* Find your Merchant Key in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys 
*/
$checksum = PaytmChecksum::generateSignature(json_encode($paytmParams["body"], JSON_UNESCAPED_SLASHES), "YOUR_MERCHANT_KEY");

/* head parameters */
$paytmParams["head"] = array(

    /* put generated checksum value here */
    "signature"	=> $checksum
);

/* prepare JSON string for request */
$post_data = json_encode($paytmParams, JSON_UNESCAPED_SLASHES);

/* for Staging */
$url = "https://securegw-stage.paytm.in/v3/order/status";

/* for Production */
// $url = "https://securegw.paytm.in/v3/order/status";

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));  
$response = curl_exec($ch);

import requests
import json

# import checksum generation utility
# You can get this utility from https://developer.paytm.com/docs/checksum/
import PaytmChecksum

# initialize a dictionary
paytmParams = dict()

# body parameters
paytmParams["body"] = {

    # Find your MID in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys
    "mid" : "YOUR_MID_HERE",

    # Enter your order id which needs to be check status for
    "orderId" : "YOUR_ORDER_ID",
}

# Generate checksum by parameters we have in body
# Find your Merchant Key in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys 
checksum = PaytmChecksum.generateSignature(json.dumps(paytmParams["body"]), "YOUR_MERCHANT_KEY")

# head parameters
paytmParams["head"] = {

    # put generated checksum value here
    "signature"	: checksum
}

# prepare JSON string for request
post_data = json.dumps(paytmParams)

# for Staging
url = "https://securegw-stage.paytm.in/v3/order/status"

# for Production
# url = "https://securegw.paytm.in/v3/order/status"

response = requests.post(url, data = post_data, headers = {"Content-type": "application/json"}).json()

Dictionary<string, string> body = new Dictionary<string, string>();
Dictionary<string, string> head = new Dictionary<string, string>();
Dictionary<string, Dictionary<string, string>> requestBody = new Dictionary<string, Dictionary<string, string>>();

body.Add("mid", "YOUR_MID_HERE");
body.Add("orderId", "ORDERID_98765");

/*
* Generate checksum by parameters we have in body
* Find your Merchant Key in your Paytm Dashboard at https://dashboard.paytm.com/next/apikeys 
*/
string paytmChecksum = Checksum.generateSignature(JsonConvert.SerializeObject(body), "YOUR_KEY_HERE");

head.Add("signature", paytmChecksum);

requestBody.Add("body", body);
requestBody.Add("head", head);

string post_data = JsonConvert.SerializeObject(requestBody);

//For  Staging
string url = "https://securegw-stage.paytm.in/v3/order/status";

//For  Production 
//string  url  =  "https://securegw.paytm.in/v3/order/status";

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);

webRequest.Method = "POST";
webRequest.ContentType = "application/json";
webRequest.ContentLength = post_data.Length;

using (StreamWriter requestWriter = new StreamWriter(webRequest.GetRequestStream()))
{
    requestWriter.Write(post_data);
}

string responseData = string.Empty;

using (StreamReader responseReader = new StreamReader(webRequest.GetResponse().GetResponseStream()))
{
    responseData = responseReader.ReadToEnd();
    Console.WriteLine(responseData);
}