পোস্ট রিকোয়েস্ট এ জেসন ডেটা পাঠানো

npm install body-parser

const express = require('express');
// step 1 
const bodyparser = require("body-parser");


const app = express();
// step 2 
app.use(bodyparser.json())


app.post('/register', (req, res) => {

    // step 3 access body property
    let jsondata = req.body;

    // step 4 get value for specific property
    let name = jsondata.name;
    let roll = jsondata.roll;
    res.send("your name is :"+ name +"roll is "+ roll);

});

const port = 3000;
app.listen(port, () => {
  console.log('Server listening on port 3000');
});