Browser detection tools

index.js

const express = require('express');
const useragent = require('useragent');
const browserInfo = require('browser-info');
const geoip = require('geoip-lite');

const app = express();
const port = process.env.PORT || 3000;

app.get('/', (req, res) => {
  const defaultAgent = req.headers['user-agent'];
  const parseAgent = useragent.parse(defaultAgent);
  const lookup = useragent.lookup(defaultAgent);
  const bInfo = browserInfo(defaultAgent);
  const ipFor = req.headers['x-forwarded-for'];
  const ip = req.connection.remoteAddress;
  const geoIp = geoip.lookup(ipFor || ip);

  res.send({
    defaultAgent, parseAgent, lookup, bInfo, ipFor, ip, geoIp,
  })
});

app.listen(port);