HTTP Basic Authentication with Express 4 using the http-auth module

app.js

var express = require('express'),
    auth = require('http-auth');

// Configure basic auth
var basic = auth.basic({
    realm: 'SUPER SECRET STUFF'
}, function(username, password, callback) {
    callback(username == 'admin' && password == 'f00lpr00f');
});

// Set up express app
var app = express();

// Create middleware that can be used to protect routes with basic auth
var authMiddleware = auth.connect(basic);

// Configure an unprotected route 
app.get('/', function(request, response) {
    response.send('This is the secret route: <a href="/secret">shhhhhhh!</a>');
});

// Protected route
app.get('/secret', authMiddleware, function(request, response) {
    response.send('you made it!');
});

app.listen(3000);

If you want to log out?

Gives the following error:

TypeError: auth.connect is not a function