How to access request cookie in express code example

Example: express get cookie

const cookieParser = require('cookie-parser');
const express = require('express');
const app = express();
app.use(cookieParser());

app.get('/', (req, res) => {
  console.log('Cookies: ', req.cookies);
  console.log('Signed Cookies: ', req.signedCookies);
});

app.listen(3000);