basic.js

// Requiring module
const express = require("express");
const fs = require("fs");
var path = require('path');
 
const app = express();
 
function authentication(req, res, next) {
    var authheader = req.headers.authorization;
    console.log(req.headers);
 
    if (!authheader) {
        var err = new Error('You are not authenticated!');
        res.setHeader('WWW-Authenticate', 'Basic');
        err.status = 401;
        return next(err)
    }
 
    var auth = new Buffer.from(authheader.split(' ')[1],
    'base64').toString().split(':');
    var user = auth[0];
    var pass = auth[1];
 
    if (user == 'admin' && pass == 'password') {
 
        // If Authorized user
        next();
    } else {
        var err = new Error('You are not authenticated!');
        res.setHeader('WWW-Authenticate', 'Basic');
        err.status = 401;
        return next(err);
    }
 
}
 
// First step is the authentication of the client
app.use(authentication)
//app.use(express.static(path.join(__dirname, 'public')));

app.get('/basic', (req, res) => {
    res.end("Call success with AAD auth!");
});

app.get('/basic2', (req, res) => {
    res.end("Call success with AAD auth! 2");
});


// Server setup
app.listen(3000, "localhost", () => {
    console.log("Server is Running ");
})