app.js

var express=require('express');
var path=require('path');
var expressValidator =require('express-validator');
var session =require('express-session');
var passport =require('passport');
var localStrategy=require('passport-local').Strategy;
var bodyParser=require('body-parser');
var flash =require('connect-flash');

var routes=require('./routes/index');
var users =require('./routes/users');

var app=express();

//view engine
app.set('views',path.join(__dirname,'views'));
app.set('view engine','ejs');

//set static folder
app.use(express.static(path.join(__dirname,'public')));
app.use('/css',express.static(__dirname+'/node_modules/bootstrap/dist/css'));

//bodyParser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:false}));

//express session Middleware
app.use(session({
	secret:'secret',
	saveUninitialized:true,
	resave:true
}));


app.use(passport.initialize());
app.use(passport.session());

//express vaidator middleware
app.use(expressValidator({
	errorFormatter:function(param,msg,value){
		var namespace=param.split('.')
		,root=namespace.shift()
		,formParam=root;

		while(namespace.length){
			formParam+='['+ namespace.shift() + ']';

		}
		return{
			param : formParam,
			msg :msg,
			value :value
		};
	}
}));

//connect-flash middleware
app.use(flash());
app.use(function(req,res,next){
res.locals.messages=require('express-messages')(req,res);
next();
});

//define routes
app.use('/',routes);
app.use('/users',users);

app.listen(3000);
console.log('Server started on port 3000');