express logger

server.js

const express = require('express')
const app = express()
const log = console.log

const myLogger = (req, res, next) => {
  res.on('finish', function() {
    log(`${this.statusCode} ${req.method} ${req.path} - ${req.headers['cf-connecting-ip']} `)
  }
}

app.get('/', (req, res) => res.end('hello world!'))

app.use((req, res, next) => res.status(404).send('Not found.... :('))

app.listen(process.env.PORT, () => log('Online'))