Use as Middleware on Routes

caution

Routes Must be defined as similar to the CALLBACK_URL in Paytm Instance During setup

index.js

const paytm = require("./instance/paytm.js)


app.post("/paynow", paytm.InitializeTransaction);
app.post("/callback", (req, res) => {
   console.log(req.body);
    // write your own code
    res.end()
});

OR

routes.js

const express = require('express')
const router = express.Router()
const paytm = require("./instance/paytm)

router.post("/paynow", paytm.InitializeTransaction);
router.post("/callback",   (req, res) => {
     console.log(req.body);
    // write your own code
    res.end()
});

See Output on CallBack Response of Output