Parsing Headers

How to parse headers in a GET request

In an Express.js application, you can access headers in a GET request through the req.headers object in the route handler. The req.headers object contains all the headers sent with the request, and you can extract and use specific headers as needed.

const express = require('express');
const app = express();
const port = 3000;

app.get('/get-info', (req, res) => {
  // Access headers from req.headers
  const userAgent = req.headers['user-agent'];
  const acceptLanguage = req.headers['accept-language'];

  res.json({
    userAgent,
    acceptLanguage,
  });
});

app.listen(port, () => {
  console.log(`Server is running on http://localhost:${port}`);
});