Add Login/Create account page(js)

+var express = require('express');
+var app = express();
+var bodyParser = require('body-parser');
+var session = require('express-session')
+
+app.use(session({ secret: 'delicious biscuit', cookie: { maxAge: 60000 }}))
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(bodyParser.json());
+
+
+var users = new Array();
+users[0] = {
+	"userId" : 0,
+	"name" : "Admin",
+	"password" : "123",
+	"isAdmin" : true
+}
+
+app.get('/login', function (req, res) {
+	// users 배열에서 찾도록 처리 해야 함
+	// admin 여부를 확인하여 체크
+	// req.body.id : ID
+	// req.body.password : 패스워드
+	if(users[req.body.id].password == req.body.password)
+	{
+		req.session.userId = users[req.body.id].userId;
+		req.session.isAdmin = users[req.body.id].isAdmin;
+		res.send("Login");
+	}
+    else if(users[req.body.id].password == req.body.password)
+        res.send("PwError");
+	else
+		res.send("IdError");
+});
+
+app.get('/logout', function (req, res) {
+	// Logout
+	// 세션 유효 여부를 체크하고 세션 Delete
+	if(req.session.userId != null)
+	{
+		req.session.destroy(function(err){});
+		res.send("LogOut");
+	}
+	else
+		res.send("Error");
+});
+
+var auth = function (req, res, next) {
+	// Session Check
+	// 어드민 여부 체크 필요
+	if (req.session.isAdmin == true)
+		next();
+	else
+		res.send("Error");
+
+};
+app.get('/user/:userId', auth,function (req, res) {
+	// get User Information
+	var userId = req.params.userId;
+    console.log(users[userId]);
+    res.send("OK");
+});
+app.post('/user', auth,function (req, res) {
+	users[req.body.userId] = {
+		"userId" : req.body.userId,
+		"name" : req.body.name,
+		"password" : req.body.password,
+		"isAdmin" : false
+	}
+	res.send("added");
+});
+app.put('/user/:userId', auth,function (req, res) {
+	var userId = req.params.userId;
+	if (userId == users[userId].userId)
+	{
+		users[req.body.userId] = {
+			"userId" : req.body.userId,
+			"name" : req.body.name,
+			"password" : req.body.password,
+			"isAdmin" : req.body.isAdmin
+		}
+		console.log(users[userId]);
+		res.send("edited");
+	}
+	else
+		res.send("Error");
+});
+app.delete('/user/:userId', auth,function (req, res) {
+	var userId = req.params.userId;
+	delete users[userId];
+	res.send("deleted");
+});
+// 사용자 추가 시에 admin 여부도 추가해야 함
+
+var server = app.listen(80);