Answers for "access body parser data"

body parser

var express = require('express')
  var bodyParser = require('body-parser')
  var app = express()
  // parseapplication/x-www-form-urlencoded
  app.use(bodyParser.urlencoded({ extended: false }))
  // parse application/json
  app.use(bodyParser.json()) app.use(function (req, res) {  res.setHeader('Content-Type', 'text/plain')  res.write('you posted:\n')  res.end(JSON.stringify(req.body, null, 2))})

body parser

<script>
const bodyParser = require("body-parser");

app.use(bodyParser.urlencoded({extended:true}));
  
app.post("/", function(req, res){
  let firstName = req.body.fNAME;
  
});
</script>

<input type="text" name="fNAME" placeholder="First Name">

How to access the request body when POSTing using Node.js and Express

const express = require('express');

const app = express();

app.use(express.json({extended: false})); //This is the line that you want to add

app.post('/postroute', (req, res) => {
    console.log('body :', req.body);
    res.sendStatus(200);
});