Node.js quick file server (static files over HTTP)

Question

Is there Node.js ready-to-use tool (installed with npm), that would help me expose folder content as file server over HTTP.

Example, if I have

Answer 1

In plain node.js:

const http = require('http')
const fs = require('fs')
const path = require('path')

process.on('uncaughtException', err => console.error('uncaughtException', err))
process.on('unhandledRejection', err => console.error('unhandledRejection', err))

const publicFolder = process.argv.length > 2 ? process.argv[2] : '.'
const port = process.argv.length > 3 ? process.argv[3] : 8080

const mediaTypes = {
  zip: 'application/zip',
  jpg: 'image/jpeg',
  html: 'text/html',
  /* add more media types */
}

const server = http.createServer(function(request, response) {
  console.log(request.method + ' ' + request.url)

  const filepath = path.join(publicFolder, request.url)
  fs.readFile(filepath, function(err, data) {
    if (err) {
      response.statusCode = 404
      return response.end('File not found or you made an invalid request.')
    }

    let mediaType = 'text/html'
    const ext = path.extname(filepath)
    if (ext.length > 0 && mediaTypes.hasOwnProperty(ext.slice(1))) {
      mediaType = mediaTypes[ext.slice(1)]
    }

    response.setHeader('Content-Type', mediaType)
    response.end(data)
  })
})

server.on('clientError', function onClientError(err, socket) {
  console.log('clientError', err)
  socket.end('HTTP/1.1 400 Bad Request\r\n\r\n')
})

server.listen(port, '127.0.0.1', function() {
  console.log('