node req.body code example

Example 1: 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);
});

Example 2: express req body

app.post('/login', (req, res) => {
  console.log(req.body.email) // "[email protected]"
  console.log(req.body.password) // "helloworld"
})

Example 3: req.body

(req.body, ' ' , ' ') --> here req is the parameter of your function and using this parameter your can access the properties over then url.
so look this example
suppose this is form 
<form>
enter the name : <input type="text" name="name">
<button type ="submit"> submit </button> 
</form>

so if you want to access the name -- which is filled by the user end.
so for this you can 
do like this->   console.log(req.body.name);  -- this will print the name (property) in console.