How to get the profile of current user in node js - node.js

Question

I am using MEAN Stack and mongoose. Using passport for authentication. I want to get the currently logged in user and display his details. For example if I am logged in and if I go to the profile page I want to get my details. There were only few resources on the internet.
Login.js (passport and routes are here)
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, next) {
res.render('profile', { title: 'profile' });
});
router.get("/Logout", function(req, res) {
req.logout();
res.redirect("/");
});
module.exports = router;
How can I do this in nodejs

Answer 1

It's on the req.user object
router.get('/profile', function(req, res, next) {
//here it is
var user = req.user;
//you probably also want to pass this to your view
res.render('profile', { title: 'profile', user: user });
});

Answer 2

passport fills the req.user object with the current user through middlewares pipelines so you can extract it from there.

Answer 3

As Alex said, you may explicitly pass some variable (e.g. your req.user) when calling res.render:
router.get('/profile', function(req, res, next) {
res.render('profile', { title: 'profile', user: req.user });
});
Instead, maybe you'd like some variables (like that req.user) to be accessible in all calls to res.render without bothering to specify them every time? In that case, you can use res.locals, e.g. by adding this middleware:
app.use(function(req, res, next){
res.locals.user = req.user;
next();
});
And finally, for completeness -- in both of the approaches above, the variable user is available for you in the view. For example, if you're using a pug template, you may now do something like:
if user
p Hello, #{user.id}, good to see you!
else
p Please log in...