Node Express, how to get the user agent and other requester details

The package express-useragent gives much of the details

npm install express-useragent

The usage is like below

var express = require('express');
var app = express();
var useragent = require('express-useragent');

app.use(useragent.express());
app.get('/', function(req, res){
    res.send(req.useragent);

});
app.listen(3000);


The result is like this below, pretty useful. In this sample, the geoIP is coming as empty however.


{ isAuthoritative: true,
  isMobile: false,
  isTablet: false,
  isiPad: false,
  isiPod: false,
  isiPhone: false,
  isAndroid: false,
  isBlackberry: false,
  isOpera: false,
  isIE: false,
  isEdge: false,
  isIECompatibilityMode: false,
  isSafari: false,
  isFirefox: false,
  isWebkit: false,
  isChrome: true,
  isKonqueror: false,
  isOmniWeb: false,
  isSeaMonkey: false,
  isFlock: false,
  isAmaya: false,
  isPhantomJS: false,
  isEpiphany: false,
  isDesktop: true,
  isWindows: false,
  isLinux: false,
  isLinux64: false,
  isMac: true,
  isChromeOS: false,
  isBada: false,
  isSamsung: false,
  isRaspberry: false,
  isBot: false,
  isCurl: false,
  isAndroidTablet: false,
  isWinJs: false,
  isKindleFire: false,
  isSilk: false,
  isCaptive: false,
  isSmartTV: false,
  isUC: false,
  isFacebook: false,
  isAlamoFire: false,
  silkAccelerated: false,
  browser: 'Chrome',
  version: '74.0.3729.169',
  os: 'macOS High Sierra',
  platform: 'Apple Mac',
  geoIp: {},
  source:
   'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36' }

References:
https://www.npmjs.com/package/express-useragent