sample for http://pmuellr.blogspot.com/2015/09/getting-started-with-nsolid-at-command.html

busy-web.js

"use strict"

const fs   = require("fs")
const http = require("http")

let Port  = process.env.PORT | "0"

let CountBlock = 100
let Requests   = 0
let Responses  = 0

const Server = http.createServer(onRequest)
Server.listen(Port, onListen)

setInterval(onInterval, 10)

//-------------------------------------
function onInterval() {
  const url = `http://localhost:${Port}`

  const req = http.get(url, res => onResponse(res))

  req.on("error",
    err => console.log("request error:", err.stack)
  )
}

//-------------------------------------
function onResponse(res) {
  Responses++
  if (0 == Responses % CountBlock)
    console.log(`recv: ${Responses} requests`)
}

//-------------------------------------
function onRequest(req, res) {
  fs.readFile(__filename, "utf8",
    (err, data) => onReadDone(res, err, data)
  )
}

//-------------------------------------
function onReadDone(res, err, data) {
  if (err) {
    console.log("read error:", err.stack)
    data = `${err}`
  }

  res.end(data)

  Requests++
  if (0 == Requests % CountBlock)
    console.log(`send: ${Requests} requests`)
}

//-------------------------------------
function onListen() {
  Port = Server.address().port
  console.log(`server listing at http://localhost:${Port}`)
}