I am using MEAN Stack. I want to access the req.user property. But I am getting an error saying Cannot read property 'username' of undefined when I try to display the username of current user. I reffered to some sites. https://www.airpair.com/express/posts/expressjs-and-passportjs-sessions-deep-dive
Similar question Node + Express + Passport: req.user Undefined
It has been mentioned the order of the middleware functions matters. I corrected those. Still I am getting the same error. What is my mistake?
app.js
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var mongo = require('mongodb');
var mongoose = require("mongoose");
var expressValidator = require('express-validator');
var flash = require('connect-flash');
var session = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var ConnectRoles = require('connect-roles');
var User = require('./models/user');
mongoose.connect("mongodb://localhost:27017/test");
var db = mongoose.connection;
db.on("error", console.error.bind(console, "Connection error:"));
db.once("open", function(callback){
console.log("Connection Succeeded.");
});
var routes = require('./routes/Login');
var admin = require('./routes/AdminDatabase');
var survey = require('./routes/CreateSurvey');
var submit = require('./routes/SubmitSurvey');
var app = express();
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use(logger('dev'));
app.use(express.static(path.join(__dirname, 'public')));
app.use(cookieParser());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(session({
secret: 'secret',
saveUninitialized: true,
resave: true
}));
app.use(passport.initialize());
app.use(passport.session());
app.use(flash());
app.use(function (req, res, next) {
res.locals.success_msg = req.flash('success_msg');
res.locals.error_msg = req.flash('error_msg');
res.locals.error = req.flash('error');
res.locals.user = req.user || null;
next();
});
app.use('/', routes);
app.use('/AdminDatabase', admin);
app.use('/CreateSurvey', survey);
app.use('/SubmitSurvey', submit);
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
}
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
app.get('/AdminDatabase', function(req, res){
user.find({}, function(err, profile){
res.render('AdminDatabase', {profile:profile});
});
});
module.exports = app;
Login.js (where I have the passport and routes)
var express = require('express');
var router = express.Router();
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var User = require('../models/user');
var ConnectRoles = require('connect-roles');
router.get('/', function(req, res, next) {
res.render('Login', { title: 'Login' });
});
passport.serializeUser(function(user, done) {
done(null, user._id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
passport.use("/", new LocalStrategy(
function(username, password, done) {
User.findOne({ username: username }, function(err, user) {
if (err) { return done(err); }
if (!user) {
return done(null, false,
{ message: "No user has that username!" });
}
user.checkPassword(password, function(err, isMatch) {
if (err) { return done(err); }
if (isMatch) {
return done(null, user);
} else {
return done(null, false,{ message: "Invalid password." });
}
});
});
}));
router.use(function(req, res, next) {
res.locals.currentUser = req.user;
res.locals.errors = req.flash("error");
res.locals.infos = req.flash("info");
next();
});
router.post("/", passport.authenticate("/", {
successRedirect: "/SubmitSurvey",
failureRedirect: "/",
session: false,
failureFlash: true
}));
router.get("/AdminDatabase", function(req, res) {
res.render('AdminDatabase', { title: 'AdminDatabase' });
});
router.get('/CreateSurvey', function(req, res, next) {
res.render('CreateSurvey', { title: 'CreateSurvey' });
});
router.get('/SubmitSurvey', function(req, res, next) {
res.render('SubmitSurvey', { title: 'SubmitSurvey' });
});
router.get('/profile', function(req, res){
var user= res.user;
res.render('profile', { title: 'profile', user: user });
});
router.get("/Logout", function(req, res) {
req.logout();
res.redirect("/");
});
module.exports = router;
