How to put up node/Express server on AWS EC2
First set up a SubDirectory on the remote server
mkdir server
cd server

sudo apt-get update

curl -sL https://deb.nodesource.com/setup_8.x| sudo -E bash -

sudo apt-get install -y nodejs

npm init

npm install express















var express = require("express");
var app 	= express();

app.get('/',function(req,res){
	var num = Math.floor(Math.random()*10);
	res.send('my lucky number is '+num);
});
app.listen(9000);