isAuthenticated() always returns false irrespective whether user is logged in or not

User 13725205

The req.isAuthenticated() of api.js function always returns false whether or not the user is logged in or not. Thus user is redirected to /#login at all times. I have not yet connected to MongoDB so it's just the javascript and nodejs part. I am testing my code on advanced rest client. I tried a few solutions which suggested using cookies but it doesn't seem to work. I know there already exists a lot of answers to this question and I have tried nearly most of the answers on stack overflow but somehow nothing seems to work. I don't know what I am missing out on. I am stuck on this for a long time ao any kind of help is highly appreciated. app.js (main file):

var http_errors = require('http-errors');
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var passport = require('passport');
var session = require('express-session');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var api = require('./routes/api');
var authenticate = require('./routes/authenticate')(passport);

var app = express();

app.use(cookieParser('super duper secret'));
app.use(session({
    secret: 'super duper secret',
    resave: true,
    saveUninitialized: true
}));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(express.static(path.join(\_\_dirname, 'public')));
app.use(passport.initialize());
app.use(passport.session());

// view engine setup
app.set('views', path.join(\_\_dirname, 'views'));
app.set('view engine', 'ejs');

app.use('/api', api);
app.use('/auth', authenticate);

//Initialize passport
var initPassport = require('./passport-init');
initPassport(passport);

module.exports = app;

Routing files:- api.js:

var express = require('express');
var router = express.Router();

router.use(function(req, res, next){
    
    if(req.method === "GET"){
        //continue to the next middleware or request handler
        return next();
    }
    
    if (!req.isAuthenticated()){
        //user not authenticated, redirect to login page
        return res.redirect('/#login');
    }
    
    //user authenticated continue to next mi