TypeError : req.logIn is not a function

[comingback2life]

I am trying to implement a login function for the app I am building, whenever I try to authenticate user via login. Instead of redirecting me to some page it sends me an error.

I am not being able to understand why req.logIn is not being recognised as a function.

Here is my index.js

const express = require('express');
const app = express();
const mongoose = require('mongoose');
const path = require('path');
const ejsMate = require('ejs-mate');
const loginRoutes = require("./routes/login");
const User = require('./models/users');
const session = require('express-session');
const userRoutes = require('./routes/user');
const passport = require('passport');
const passportLocal = require('passport-local');

sessionConfig = {
    name: "session",
    secret: 'BetterSecret',
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        expires: Date.now() + 604800000, //Date.NOW + No. of Miliseconds in the week
        maxAge: 604800000
    }
};

//Connection strings only beyond this line
mongoose.connect('mongodb://localhost:27017/sproutBiz').then(console.log("DB connected")).catch(error => handleError(error));
app.listen(5500, (req, res, next) => {
    console.log("Connected");
});
//app.uses
app.use(express.urlencoded({ extended: true }));
app.use("/", loginRoutes);
app.use("/business", userRoutes);
app.engine('ejs', ejsMate);
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views')); //setting up the views directory   
app.use(express.static(path.join(__dirname, 'public'))); //public directory to serve static content
app.use(session(sessionConfig));
app.use(passport.initialize());
app.use(passport.session());
passport.use(new passportLocal(User.authenticate()));
passport.serializeUser(User.serializeUser()); //serialization means storing user in a session
passport.deserializeUser(User.deserializeUser());

This is my login route :

const express = require('express');
const router = express();
const users = require('../controllers/users');
const passport = require('passport');

router.route('/login')
    .get(users.renderLoginForm)
    .post(passport.authenticate('local', { failureRedirect: '/login' }), users.login);

router.route('/register')
    .get(users.renderRegisterForm)
    .post(users.createNewUser);

module.exports = router;

In my controller for login.

module.exports.login = (req, res) => {
console.log("This is being executed");
};

The login function will carry other logic but for now I just can't seem to hit the method.

Can anyone help me out with this please ?

[jaredhanson]

The line app.use(passport.initialize()); needs to be moved above app.use("/", loginRoutes);. This middleware has to be in place before any routes that use passport, since it is what adds the logIn function to req.