gistfile1.js

var http = require('http')

var config = {
    host: '127.0.0.1',
    port: 20202
}

http.createServer(function (i,o) {
    o.writeHead(200, {
        'Content-Type': 'text/plain'
    })
    o.write('Hello thar 1\n')
    setTimeout(function() {
        o.write('Hello thar 2\n')
        o.end()
    },2000)

}).listen(config.port, function() {
    var address = this.address()
    console.log("Started http://%s:%d", address.address, address.port)
})