passport.js deserialization ok, but authentication not working - express

Question

I have a working development version and even my testing version worked until recently. The authentication works sometimes, but mostly the authentication just fails with req.isAuthenticated().
server.js:
var express = require('express');
var app = express();
var port = PORTS[ENVIRONMENT];
var passport = require('passport');
var morgan = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');
var passportConfigs = require('./config/passport');
var routes = require('./routes.js');
// App setup
app.use("/", express.static(__dirname + '/public/'));
// configuration ===============================================================
/* open mongo connection */
require('./database/' + ENVIRONMENT + '.js');
/* === passport configs === */
passportConfigs(passport, ENVIRONMENT);
// set up our express application
app.use(morgan(morganEnv)); // log every request to the console
app.use(cookieParser()); // read cookies (needed for auth)
//app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: true
})); // get information from html forms
app.set('view engine', 'ejs'); // set up ejs for templating
// required for passport
app.use(session({
secret: '********' ,
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session()); // persistent login sessions
passport serialize:
passport.deserializeUser(function(id, done) {
userQueries.findID(id)
.then(function(user) {
var firebaseRef = firebaseRefMod(user, environment).ref;
if(!firebaseRef) {
throw new Error('problem with generating firebase reference, dunno why!');
}
console.log("UserFirst:", { userData: filterUserData( user ), FBRef: firebaseRef })
done(null, { userData: filterUserData( user ), FBRef: firebaseRef } );
}).then(null, function(err) {
console.log(err);
done(err, null);
});
});
routes:
app.post('/auth', isLoggedIn, function(req, res) {
console.log("req", req.user)
res.status(200).send({ "authKey": authGenerator.createToken(authGenerator.types.NORMAL, req.user.userData) , "user": req.user.userData } );
});
function isLoggedIn(req, res, next) {
console.log("userIn", req.isAuthenticated())
// if user is authenticated in the session, carry on
if (req.isAuthenticated())
return next();
// if they aren't redirect them to the home page
errorInRestRequest(res, errorCodes.userNotAuthenticated, req.user);
return false;
}
So basically if the authentication succeeds as it should, the isLoggedIn-function has access to user data from req.user. Even if the authentication does not success, the user is deserialized without problem every time verified by the "console.log("UserFirst:"... entry), but the req.user does not hold the data when it reaches in isLoggedIn-function.
Unfortunately my knowledge of passport and express middlewares are limited, so I'm puzzled as to where the data vanishes in between.

Answer 1

Seems like the problem was caused by wrong node module versions. Do not have the specifics yet, but reverting several modules to older versions fixed the issue.