First, install the morgan Middleware in your project

npm install --save morgan

Add the following code to your app.js file:

var express = require('express')
var morgan = require('morgan')

var app = express()

app.use(morgan('combined'))

app.get('/', function (req, res) {
  res.send('hello, world!')
})

Now when you access your website you will see in the console you used to start the server that the requests are logged

First, install fs and path in your project

npm install --save fs path

Add the following code to your app.js file:

var express = require('express')
var fs = require('fs')
var morgan = require('morgan')
var path = require('path')

var app = express()

// create a write stream (in append mode)
var accessLogStream = fs.createWriteStream(path.join(__dirname, 'access.log'), {flags: 'a'})

// setup the logger
app.use(morgan('combined', {stream: accessLogStream}))

app.get('/', function (req, res) {
  res.send('hello, world!')
})

Now when you access your website you will see a access.log file was created in your project directory

First, install fs, file-stream-rotator and path in your project

npm install --save fs file-stream-rotator path

Add the following code to your app.js file:

var FileStreamRotator = require('file-stream-rotator')
var express = require('express')
var fs = require('fs')
var morgan = require('morgan')
var path = require('path')

var app = express()
var logDirectory = path.join(__dirname, 'log')

// ensure log directory exists
fs.existsSync(logDirectory) || fs.mkdirSync(logDirectory)

// create a rotating write stream
var accessLogStream = FileStreamRotator.getStream({
  date_format: 'YYYYMMDD',
  filename: path.join(logDirectory, 'access-%DATE%.log'),
  frequency: 'daily',
  verbose: false
})

// setup the logger
app.use(morgan('combined', {stream: accessLogStream}))

app.get('/', function (req, res) {
  res.send('hello, world!')
})

Now when you access your website you will see a log directory was created and a log file with a name format of access-%DATE%.log was created in your log directory