passport authentication failed in basic example

Question

I am trying to break down this passport.js example to its most basic elements. I keep getting a 401 (Unauthorized) message and can't figure out why. Any help would be greatly appreciated.

Thank you!

Node.js file:

var http = require('http'),
express = require('express'),
passport = require('passport'),
LocalStrategy = require('passport-local').Strategy,
flash = require('connect-flash');

var port = process.env.PORT || 8080;

passport.serializeUser(function(user, done) {
  done(null, user);
});

passport.deserializeUser(function(obj, done) {
  done(null, obj);
});

passport.use(new LocalStrategy(
  function(username, password, done) {
   console.log("LocalStrategy working...");
   return done(null, { id: 1, username: 'Joe', password: 'schmo'});
  }
));

var app = express();

app.configure(function(){
  app.use(express.static(__dirname + '/app'));
  app.use(express.cookieParser('big secret'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(express.cookieSession());
  app.use(flash());
  app.use(passport.initialize());
  app.use(passport.session());
  app.use(app.router);
});

app.get('/', function (req, res) {
  res.sendfile(__dirname + '/index.html');
});

app.post('/login', passport.authenticate('local'), function (req, res) {
  console.log("authenticated....");
  res.end();
});

app.listen(port);

Answer 1

All users of new express.js (4.x and higher) together with passport.js could experience 'Missing credentials' trouble just because POST data is not parsed by default. To fix it install body-parser npm install body-parser and use in your code:

var bodyParser = require( 'body-parser' );
app.use( bodyParser.urlencoded({ extended: true }) );

Good point from @ivarni: app.use( bodyParser.urlencoded({ extended: true }) ); must be placed before injecting any passport middleware.