"Login sessions require session support. Did you forget to use `express-session` middlewar?"

user_19240013 0
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Learning node.js encountered this error "Login sessions require session support. Did you forget to use express-session middlewar?" Has anyone encountered this specific error when creating a Node.js project and, if so, what did you do to solve?

const express = require('express');

const cors = require('cors');

const bodyParser = require('body-parser');

const mongoose = require('mongoose');

const passport = require('passport');

const path = require('path');

const config = require('./config/db');

const account = require('./routes/account');

const session = require('express-session');

const app = express();

const port = 3000;

app.use(passport.initialize());
app.use(passport.session());

require('./config/passport')(passport);

app.use(cors());

app.use(bodyParser.json());


mongoose.connect(config.db);

mongoose.connection.on('connected', () => {
    console.log("Successful connection to the database")
});

mongoose.connection.on('error', (err) => {
    console.log("Not successful connection to the database")
});


app.listen(port, () => {
    console.log("The server was running on the port: " + port)
});

app.get('/', (req,res) => {
    res.send("Home page")
});

app.use('/account', account);


const express = require('express');

const router = express.Router();

const User = require('../models/user');

const passport = require('passport');

const jwt = require('jsonwebtoken');

const config = require('../config/db');


router.post('/reg', (req,res) => {
    let newUser = new User({
        name: req.body.name,
        email: req.body.email,
        login:req.body.login,
        password: req.body.password,
    }); 





    User.addUser(newUser, (err, user) => {
        if(err) {
            res.json({success: false, msg: "User has not been added."})
        }
        else {
            res.json({success: true, msg: "User has been added"})
        }
    })
});



router.get('/auth', (req,res) => {
    res.send("Login page")
});

router.get('/dashboard', passport.authenticate('jwt', {session : false}), (req,res) => {
    res.send("Dashboard")
});

module.exports = router;
express node.js mongodb
2 Answers

The error is asking a relevant question: "Did you forget to use express-session middleware?".

And indeed, you're loading passport.session() but you're not using express-session, which is a requirement.

To fix it, use express-session before using passport.session():

app.use(session({ … }));
app.use(passport.initialize());
app.use(passport.session());
user_8937800

I faced same problem. But the real problem lied in the "passport" version compatibility with JWT module. By downgrading from passport 0.8.0 to 0.4.0 the issue was easily resolved. My code worked fine with the following configuration:

"passport": "^0.4.0",
"passport-jwt": "^4.0.0",
"passport-local": "^1.0.0",
"passport-local-mongoose": "^5.0.1",
"session-file-store": "^1.5.0"
user_200791360
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