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Passport.JS deserializeUser Is Never Reached

I have tried almost every method known to stack Overflow but my issue is persisting as the days goes by and I'm really hoping for some help here. As you can tell from the title, Passport-local does not call deserializeUser for some odd reason. My files are set up as shown below.
User.js
const express = require('express');
const app = express();
const router = express.Router();
// const db = require('../config/db');
const session = require('express-session');
const SqlDbStore = require('express-mysql-session')(session);
const passport = require('passport');
const bodyParser = require('body-parser');
const crypto = require('crypto');
const cookieParser = require('cookie-parser')
//----------------------------------------- BEGINNING OF PASSPORT MIDDLEWARE AND SETUP ---------------------------------------------------
app.use(session({
key: 'session_cookie_name',
secret: 'session_cookie_secret',
store: new SqlDbStore({
host: 'localhost',
port: 3306,
user: 'xxxxxxxxxx',
password: 'xxxxxxxxx',
database: 'xxxxxxxxxx',
}),
resave: false,
saveUninitialized: false,
cookie:{
maxAge:1000*60*60*24,
secure: false
}
}));
app.use(passport.initialize());
app.use(passport.session());
require('../config/ppc.js')(passport);
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(cookieParser());
/*passport middleware*/
function genPassword(password) {
var salt=crypto.randomBytes(32).toString('hex');
var genhash=crypto.pbkdf2Sync(password, salt, 10000, 60, 'sha512').toString('hex');
return {salt:salt, hash:genhash}
};
function checkAuthentication(req,res,next){
if(req.isAuthenticated()){
//req.isAuthenticated() will return true if user is logged in
next();
} else{
res.redirect("/login");
}
};
//----------------------------------------- END OF PASSPORT MIDDLEWARE AND SETUP ---------------------------------------------------
router.post('/register', (req, res) => {
const firstName = req.body.firstName;
const lastName = req.body.lastName;
const email = req.body.email;
const saltHash = genPassword(req.body.password);
const salt = saltHash.salt;
const hash = saltHash.hash;
db.query('SELECT * FROM Users WHERE UsersEmail = ? ', [email], (err, results) => {
if (err){
console.log(err)
} else if (results.length > 0) {
res.json({ message: 'Email is already registered!' });
} else {
db.query('INSERT INTO Users (UsersFirstName, UsersLastName, UsersEmail, UsersPasswordHash, UsersPasswordSalt) VALUES (?, ?, ?, ?, ?)', [firstName, lastName, email, hash, salt], (err, results) => {
if (err){
console.log(err);
};
res.send(results);
});
}
})
});
router.post('/login', function(req, res, next){
// console.log(req.body);
passport.authenticate('local', function(err, user){
// console.log('Error: ' + err);
// console.log('User ID: ' + user.id + '\nUser Email: ' + user.email + '\nUser Salt: ' + user.salt + '\nUser Hash: ' + user.hash);
// console.log(err, user);
if(err) {
res.json({message: err.message});
}
if(!user) {
res.json({message: info.message});
}
req.logIn(user, (err) => {
if(err) {
res.json({message: err.message});
} else {
return res.redirect('/');
}
});
})(req, res, next);
});
module.exports = router;
PPC.js
module.exports = function (passport) {
const LocalStrategy = require('passport-local').Strategy;
const db = require('./db');
const crypto = require('crypto');
db.connect((err) => {
if (!err) {
console.log("BD Connected");
} else {
console.log("BD Conection Failed");
console.log(err.message);
res.json({message: err.message})
}
});
const customFields={
usernameField: 'email',
passwordField:'password',
};
/*Passport JS*/
const verifyCallback=(email,password,done)=>{
db.query('SELECT * FROM Users WHERE UsersEmail= ?', [email], function(error, results, fields) {
if (error) {
console.log('query error: ' + error);
return done(error);
}
if(results.length==0) {
return done(null,false, { loggedIn: false, message: 'Account is not recognized.'});
}
const isValid=validPassword(password, results[0].UsersPasswordHash, results[0].UsersPasswordSalt);
user={id:results[0].UsersID, email:results[0].UsersEmail, hash:results[0].UsersPasswordHash, salt:results[0].UsersPasswordSalt};
if(isValid) {
return done(null,user, { loggedIn: true, email: email});
} else{
return done(null,false, { loggedIn: false, message: 'Password is incorrect.'});
}
});
};
const strategy = new LocalStrategy(customFields, verifyCallback);
passport.use(strategy);
passport.serializeUser((user,done)=>{
console.log('Inside serialize');
done(null, user.id);
});
passport.deserializeUser((userId, done) => {
console.log('Inside deserialize');
db.query('SELECT * FROM Users WHERE UsersID = ?', [userId], function(error, results) {
done(null, results[0]);
});
});
function validPassword(password, hash, salt){
const hashVerify=crypto.pbkdf2Sync(password, salt, 10000, 60, 'sha512').toString("hex");
return hash === hashVerify;
};
}
I am totally unsure as to what I did wrong here. One thing I will say is, when I change all app.use() to router.use() in my User.Js, I got a consider upgrading MySQL error when I am using mysql2. Regardless, I don't think mysql is my issue because I am able to register to the DB fine using mysql2 and app.use. I believe my issue most likely lies in the router.post(/login).

I ended up just moving to my own encryption method which uses bcrypt. It was the easiest and securest way to go about this process especially with out wasting to much time. If I ever find the solution in the future, I’ll post it on GitHub and will post the link here.
More information on Bcrypt.

Passport.js in Next.js app not saving user across routes or app

I am using passport.js specifically the local-strategy for authentication with my next.js application.
Making requests to my data store is fine, and auth, authorization works as well. But I'd like access to the req.user for another route so I can have access to that users._id.
As the passport docs indicate:
By default, if authentication fails, Passport will respond with a 401
Unauthorized status, and any additional route handlers will not be
invoked. If authentication succeeds, the next handler will be invoked
and the req.user property will be set to the authenticated user.
This is my Next.js app's server.js file:
var express = require('express');
require('dotenv').config();
var morgan = require('morgan');
var cookieParser = require('cookie-parser');
var cors = require('cors');
var nextJS = require('next');
var session = require('express-session');
var mongoose = require('mongoose');
var MongoStore = require('connect-mongo')(session);
var path = require('path');
var bodyParser = require('body-parser');
var auth = require('./lib/auth');
var HttpStatus = require('http-status-codes');
var compression = require('compression');
var helmet = require('helmet');
var PORT = process.env.PORT || 8016;
var { isBlockedPage, isInternalUrl } = require('next-server/dist/server/utils');
function NODE_ENVSetter(ENV) {
var environment,
environments = {
production: () => {
environment = process.env.MONGODB_URI;
console.log(`We are currently in the production environment: ${environment}`);
return environment;
},
test: () => {
environment = process.env.TEST_DB_DSN;
console.log(`We are currently in the test environment: ${environment}`);
return environment;
},
default: () => {
environment = process.env.DEVELOPMENT_DB_DSN;
console.log(`We are currently in the development environment: ${environment}`);
return environment;
}
};
(environments[ENV] || environments['default'])();
return environment;
}
var db = NODE_ENVSetter('development');
function start() {
const dev = process.env.NODE_ENV !== 'production';
const app = nextJS({ dev });
const server = express();
// const proxy = createProxyMiddleware(options);
app
.prepare()
.then(() => {
mongoose.connect(db, {
useNewUrlParser: true,
useUnifiedTopology: true
});
mongoose.Promise = global.Promise;
mongoose.connection
.on('connected', () => {
console.log(`Mongoose connection open on ${db}`);
})
.on('error', err => {
console.log(`Connection error: ${err.message}`);
});
})
.catch(err => {
console.error(err);
});
server.use((req, res, next) => {
res.setHeader('Access-Control-Allow-Origin', '*');
res.header(
'Access-Control-Allow-Headers',
'Origin, X-Requested-With, Content-Type, Accept'
);
res.header('Access-Control-Allow-Credentials', true);
res.header('Access-Control-Allow-Methods', '*'); // enables all the methods to take place
return next();
});
server.use(function(req, res, next) {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Credentials', true);
res.header(
'Access-Control-Allow-Headers',
'Origin, X-Requested-With, Content-Type, Accept'
);
next();
});
server.use(morgan('dev'));
server.set('view engine', 'html');
server.use(express.static(path.join(__dirname + 'uploads')));
server.use('/uploads', express.static('uploads'));
server.use(cors());
server.use(cookieParser());
server.use(bodyParser.json());
server.use(
session({
secret: 'very secret 12345',
resave: true,
saveUninitialized: false,
store: new MongoStore({ mongooseConnection: mongoose.connection })
})
);
server.use(bodyParser.urlencoded({ limit: '50mb', extended: false }));
server.use(auth.initialize);
server.use(auth.session);
server.use(compression());
server.use(helmet());
server.use('/users', require('./users'));
Here I've included a log to check the req.user object
server.use((req, res, next) => {
console.log('req.user', req.user);
next();
});
// Redirect all requests to main entrypoint pages/index.js
server.get('/*', async (req, res, next) => {
try {
// #NOTE code duplication from here
// https://github.com/zeit/next.js/blob/cc6fe5fdf92c9c618a739128fbd5192a6d397afa/packages/next-server/server/next-server.ts#L405
const pathName = req.originalUrl;
if (isInternalUrl(req.url)) {
return app.handleRequest(req, res, req.originalUrl);
}
if (isBlockedPage(pathName)) {
return app.render404(req, res, req.originalUrl);
}
// Provide react-router static router with a context object
// https://reacttraining.com/react-router/web/guides/server-rendering
req.locals = {};
req.locals.context = {};
const html = await app.renderToHTML(req, res, '/', {});
// Handle client redirects
const context = req.locals.context;
if (context.url) {
return res.redirect(context.url);
}
// Handle client response statuses
if (context.status) {
return res.status(context.status).send();
}
// Request was ended by the user
if (html === null) {
return;
}
app.sendHTML(req, res, html);
} catch (e) {
next(e);
}
});
// eslint-disable-next-line func-names
class AppError extends Error {
constructor(message, statusCode) {
super(message);
this.statusCode = statusCode;
this.status = `${statusCode}`.startsWith('4') ? 'fail' : 'error';
this.isOperational = true;
Error.captureStackTrace(this, this.constructor);
}
}
server.all('*', (req, res, next) => {
next(new AppError(`Can't find ${req.originalUrl} on this server!`, 404));
});
if (process.env.NODE_ENV === 'production') {
server.use(express.static('.next/static'));
server.get('*', (req, res) => {
res.sendFile(path.resolve(__dirname, '.next/static', 'index.html'));
});
server.listen(PORT, err => {
if (err) throw err;
console.log(
`> Ready and listening on PORT:${PORT} in the ${process.env.NODE_ENV} environment`
);
});
} else {
server.listen(PORT, err => {
if (err) throw err;
console.log(`> Ready and listening on http://localhost:${PORT}`);
});
}
}
start();
And this is my auth file:
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var UserModel = require('../models/UserModel');
passport.use(
new LocalStrategy(
{ usernameField: 'username', passwordField: 'password' },
async (username, password, done) => {
try {
const user = await UserModel.findOne({ username: username }).exec();
if (!user) {
return done(null, false, { message: 'Invalid username!' });
}
const passwordOk = await user.comparePassword(password);
if (!passwordOk) {
return done(null, false, {
message: 'Invalid password!'
});
}
return done(null, user);
} catch (err) {
return done(err);
}
}
)
);
// eslint-disable-next-line no-underscore-dangle
passport.serializeUser((user, done) => done(null, user._id));
passport.deserializeUser(async (id, done) => {
try {
const user = await UserModel.findById(id).exec(); //exec is used to get a real Promise
console.log('user deserialUser', user);
return done(null, user);
} catch (err) {
return done(err);
}
});
module.exports = {
initialize: passport.initialize(),
session: passport.session()
};
And it my /login route:
router.route('/login').post((req, res, next) => {
passport.authenticate('local', (err, user) => {
console.log('user 60', req.user);
console.log('user ', user);
// console.log('res.locals.user ', res.locals.user);
if (!user) {
return res.status(404).send({
msg: [
`We were unable to find this user.`,
`This email and/or password combo may be incorrect.
Please confirm with the "Forgot password" link above or the "Register" link below!`
]
});
}
if (user.isVerified === false) {
return res.status(401).send({
msg: [
'Your username has not been verified!',
'Check your email for a confirmation link.'
]
});
} else {
I made a log to see if user would be on the req object
console.log('req.user in success login route', req.user);
return res.status(200).send({
msg: [`Your have successfully logged in;`, `Welcome to Hillfinders!`]
});
}
})(req, res, next);
});

It appears what fixed my problem was the way I was declaring my routes.
This works:
router.post('/login', passport.authenticate('local'), function(req, res) {
var user = req.user;
if (!user) {
return res.status(404).send({
msg: [
`We were unable to find this user.`,
`This email and/or password combo may be incorrect.
Please confirm with the "Forgot password" link above or the "Register" link below!`
]
});
}
if (user.isVerified === false) {
return res.status(401).send({
msg: [
'Your username has not been verified!',
'Check your email for a confirmation link.'
]
});
} else {
return res.status(200).send({
msg: [`Your have successfully logged in;`, `Welcome to Hillfinders!`]
});
}
});
I was declaring it like this:
router.route('/login').post((req, res, next) => {
passport.authenticate('local', (err, user) => {
console.log('user ', user);
// console.log('res.locals.user ', res.locals.user);
if (!user) {
res.status(404).send({
msg: [
`We were unable to find this user.`,
`This email and/or password combo may be incorrect.
Please confirm with the "Forgot password" link above or the "Register" link below!`
]
});
return;
}
if (user.isVerified === false) {
res.status(401).send({
msg: [
'Your username has not been verified!',
'Check your email for a confirmation link.'
]
});
return;
} else {
res.status(200).send({
msg: [`Your have successfully logged in;`, `Welcome to Hillfinder!`]
});
return;
}
})(req, res, next);
});
Think I saw this syntax in the Express docs and just thought it was cool because of the chaining:
router.route('/login').post((req, res, next)=>{})
There must be some reason to declare it like this instead of the normal way...
Anyway thats' what eventually got me the user from passport to be on the req object \o/, This might also help other libraries that add objects of value to the req object too...

Authentication with NodeJS, Express-Session and Passport fails

I am successfully authenticating and logging in with the google OAuth API.
const passport = require('passport');
const GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;
const passportInit = require('./app/routes/auth')
const session = require('express-session');
module.exports = (app, db, passport) => {
app.use(session({secret: "ahskfjdhkjshadkjfhlajsdhlfkj"}));
passportInit(passport)
app.use(passport.initialize());
app.use(passport.session())
app.get('/', (req, res) => {
if (req.session.token) {
res.cookie('token', req.session.token);
res.json({
status: 'session cookie set'
});
console.log(req.session.token);
console.log(JSON.stringify(req.user))
} else {
res.cookie('token', '')
res.json({
status: 'session cookie not set'
});
}
});
app.get('/auth/google', passport.authenticate('google', {
scope: ['https://www.googleapis.com/auth/userinfo.profile', 'https://www.googleapis.com/auth/youtube']
}));
app.get('/auth/google/callback',
passport.authenticate('google', {
failureRedirect: '/' // Fail: To err Page
}),
(req, res) => {
req.session.token = req.user.token;
userString = JSON.stringify(req.user);
userObjectValue = JSON.parse(userString);
userId = userObjectValue['profile'].id;
userName = userObjectValue['profile'].name;
userGivenName = userName.givenName;
const details = {'userId': userId};
db.collection('users').findOne(details, (err, item) => {
if (item == null) {
res.redirect('http://localhost:80/Register.html');
} else {
if(item['rolle'] == 'yt') {
res.redirect('http://localhost:80/YT_Welcome.html');
} else {
res.redirect('http://localhost:80/WT_Welcome.html');
}
}
});
}
);
app.get('/logout', (req, res) => {
req.logout();
req.session.token = null;
res.redirect('/');
});
}
Now I want to make a POST request from my frontend to my NodeJS backend.
Frontend-Request:
function registerWT() {
console.log('registerWT started...')
var rolle = 'wt';
var json = {"rolle": rolle};
$.ajax({
url: 'http://localhost:8000/user',
type: 'POST',
data: JSON.stringify(json),
contentType: 'application/json; charset=utf-8',
dataType: 'JSON',
async: false,
success: function (msg) {
var js = JSON.stringify(msg);
var state = msg['state'];
if (state == true) {
console.log('successfully created new user')
} else {
console.log('failed to create new user')
}
}
});
Backend-API:
var ObjectID = require('mongodb').ObjectID;
const passport = require('passport');
const passportInit = require('./auth');
module.exports = (app, db) => {
app.post('/user', (req, res) => {
console.log("POST USER REACHED!"); // This is printed out...
console.log(req.body.rolle); //is printed out correctly
console.log(req.user); // Is undefined...
if (!req.isAuthenticated()) { return res.send({'error':'unauthorized'}) } //Authentication fails...
console.log(req.user.userId);
console.log(req.userGivenName);
console.log(req.body.rolle);
userId = req.user.userId;
userGivenName = req.user.userGivenName;
userRolle= req.body.rolle;
const details = { userId: userId, userGivenName: userGivenName, rolle: userRolle };
db.collection('users').insert(details, (err, result) => {
if (err) {
res.send({ 'error': 'An error has occurred' });
} else {
res.send(result.ops[0]);
}
});
});
}
From my understanding the user authentication data should be send automaticly with every request I am doing from my frontend to my backend, since I logged in via google before. Is this correct or do I miss to include something in my frontend JS request code?
What is interessting is that after I logged in, I have to trouble with navigating to /user. So there is no problem with manualy doing a get request to this API, where I am also checking for authentication.
app.get('/user', (req, res) => {
if (!req.isAuthenticated()) { return res.send({'error':'unauthorized'}) }
db.collection('users').find({}).toArray((err, item) => {
if (err) {
res.send({'error':'An error has occurred'});
} else {
res.json(item)
}
});
});
But when I am making a Get request with JavaScript, the authentication fails again...
JavaScript get request:
function getTest() {
console.log('YT');
$.ajax({
url: 'http://localhost:8000/user',
type: 'GET',
async: false,
success: function (msg) {
var state = msg['state']; //nehmen den Wert von state aus der JSON
if (state == true) {
console.log('successfully created new user')
} else {
console.log('failed to create new user')
}
}
});
}
Does someone know what I am doing wrong here?
Edit:
My passportInit:
const GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;
const keys = require('../../config/keys')
module.exports = (passport) => {
passport.serializeUser((user, done) => {
done(null, user);
});
passport.deserializeUser((user, done) => {
done(null, user);
});
passport.use(new GoogleStrategy({
clientID: keys.google.clientID,
clientSecret: keys.google.cientSecret,
callbackURL: keys.google.callback
},
(token, refreshToken, profile, done) => {
return done(null, {
profile: profile,
token: token
});
}));
};
Edit2: Added cors package:
const MongoClient = require('mongodb').MongoClient;
const bodyParser = require('body-parser');
const db = require('./config/db');
const keys = require('./config/keys')
const passport = require('passport');
const express = require('express');
const app = express();
const GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;
const cors = require('cors')
const port = 8000;
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
app.use(cors({ origin: 'http://localhost' })); //configuring cors
MongoClient.connect(db.url, (err, database) => {
if (err) return console.log(err)
app.options('*', cors()) // enable pre-flight across-the-board
require('./authenticate')(app, database,passport);
require('./app/routes')(app, database, passport);
app.listen(port, () => {
console.log('We are live on ' + port);
});
});

I finally was able to solve the problem.
No, Browser Plug-in or something like this is needed!
Please see my Code below.
Frontend-Request:
function register() {
var role = 'wt';
var json = {"role": role};
$.ajax({
url: 'http://localhost:8000/user',
type: 'POST',
data: JSON.stringify(json),
contentType: 'application/json; charset=utf-8',
dataType: 'JSON',
xhrFields: {
withCredentials: true
},
crossDomain: true,
async: false,
success: function (msg) {
var state = msg['state'];
if (state == true) {
console.log('successfully created new WT')
location.href = 'http://localhost:80/WT_Welcome.html'
} else {
console.log('failed to create new WT')
location.href = 'http://localhost:80/index.html'
}
}
});
}
Backend Server.js
const MongoClient = require('mongodb').MongoClient;
const bodyParser = require('body-parser');
const db = require('./config/db');
const keys = require('./config/keys')
const passport = require('passport');
const express = require('express');
const app = express();
const GoogleStrategy = require('passport-google-oauth').OAuth2Strategy;
const port = 8000;
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
MongoClient.connect(db.url, (err, database) => {
if (err) return console.log(err)
app.use(function(req, res, next) {
res.header('Access-Control-Allow-Origin', "http://localhost");
res.header('Access-Control-Allow-Methods','GET,PUT,POST,DELETE');
res.header('Access-Control-Allow-Credentials', true)
res.header('Access-Control-Allow-Headers', 'Content-Type');
next();
})
require('./authenticate')(app, database,passport);
require('./app/routes')(app, database, passport);
app.listen(port, () => {
console.log('We are live on ' + port);
});
});
Backend API:
app.post('/user', (req, res) => {
if (!req.isAuthenticated()) { return res.send({'error':'unauthorized'}) } //Authentication fails...
userString = JSON.stringify(req.user);
userObject = JSON.parse(userString)
userId = userObjectValue['profile'].id;
userName = userObjectValue['profile'].name; //not used
userGivenName = userName.givenName;
userRolle= req.body.rolle;
const details = { userId: userId, userGivenName: userGivenName, rolle: userRolle };
console.log(details);
db.collection('users').insert(details, (err, result) => {
if (err) {
res.send({ 'state': false });
} else {
res.send({'state' : true});
}
});
});

create a custom passport-jwt strategy middleware callback

I want to create a custom middleware for passport-jwt to handle authentication.
here is what I have done to create my own middleware :
var models = require('../models');
var passport = require("passport");
var passportJWT = require("passport-jwt");
var config = require("../config/config.json");
var ExtractJwt = passportJWT.ExtractJwt;
var Strategy = passportJWT.Strategy;
var params = {
secretOrKey: config.jwtSecret,
jwtFromRequest: ExtractJwt.fromAuthHeader()
};
/**
* jwt authentication strategy
*/
var strategy = new Strategy(params, function(payload, done) {
models.User.findById(payload.id)
.then((user)=>{
if (user) {
return done(null, {
id: user.id,
username : user.username
});
} else {
return done(new Error("User not found"), false);
}
}).catch((err)=>{
return done(err, false);
});
});
passport.use(strategy);
module.exports = {
initialize: function() {
return passport.initialize();
},
authenticate: (req, res, next)=>{
passport.authenticate('jwt', { session: false }, (err, user, info)=>{
if (err) { return next(err); }
if (!user) { return res.send("Custom Unauthorised").end(); }
// edit as per comment
//return res.send("Test Route Accessed").end();
req.user = user; // Forward user information to the next middleware
next();
})(req, res, next);
}
};
but everytime I type 'npm start' to run the app I face this error :
if (request.headers[AUTH_HEADER]) {
^
TypeError: Cannot read property 'headers' of undefined.
the authorization header is set in the request.

yes I did Find the answer here it is :
first define the strategy logic:
var strategy = new Strategy(params, function (payload, done) {
//finding the user in the database
console.log(payload);
models.users.findById(parseInt(payload.userId))
.then((user) => {
//if the user is found
if (user) {
return done(null, {
id: user.id,
username: user.username
});
} else {
return done(new Error("User not found"), null);
}
}).catch((err) => {
console.log(err);
return done(new Error("uncaught error! try again later"), null);
})
});
then make passport use that strategy"
passport.use(strategy);
and finally export the initialization function and the middleware function
module.exports = {
initialize: function () {
return passport.initialize();
},
authenticate: function (req, res, next) {
return passport.authenticate("jwt", {
session: false
}, (err, user, info) => {
if (err) {
console.log(err);
return next(err);
}
if (!user) {
return res.json({
status: 'error',
error: 'ANOTHORIZED_USER'
});
}
// Forward user information to the next middleware
req.user = user;
next();
})(req, res, next);
}
};
and then you can call the function authenticate defined above as a middleware in your routes.
here is an example :
//import the express router
var express = require('express');
var router = express.Router();
//here I am importing the functions defined above, I put them in the config folder
var jwt_login_strategy = require('../config/jwt-login-strategy');
//and finally use the jwt_login_strategy as a middleware
router.post('something', jwt_login_strategy.authenticate, your_other_middleware(req, res, next)=>{...});
you have to call the authenticate function without adding parentheses, just like this jwt_login_strategy.authenticate.
hope it will solve your problem as it did for mine.

express js cannot GET /page

I am very stuck with a routing error on express.js. I am using jade to render my page views. I have read all the docs and refactored many times to no avail.
This is the plain contents of the link that is pointing to the '/sell' route.
index.jade
include layout
html
button.btn.btn-primary(type='submit', href='/sell') Add Item
When clicking this button the browser returns the following as a 404:
Cannot GET /sell
The problem here is that all other routes work correctly, if you are to modify the above href to other pages i.e. '/' , '/sign_in', etc no error occurs. The problem appears to be isolated to the '/sell' route.
The controller with the '/sell' route is below:
server.js
var dotenv = require('dotenv');
dotenv.load();
var session = require('express-session')
var nodemailer = require('nodemailer');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var bcrypt = require('bcrypt');
var async = require('async');
var crypto = require('crypto');
var cookieParser = require('cookie-parser');
var flash = require('express-flash');
var express = require('express');
var app = express();
var mongoose = require('mongoose');
var root = __dirname;
var path = require('path');
var User = require('./models/user');
var bodyParser = require('body-parser');
var errorHelper = require('mongoose-error-helper').errorHelper;
var validator = require('validator');
var Item = require("./models/item")
var username, email, password, owner, product_name, condition, details, price;
mongoose.connect(process.env.MONGODB_CONGO_DEV);
// Middleware
app.set('views', 'app/views');
app.set('view engine', 'jade');
app.set('port', process.env.PORT || 3000);
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true}));
app.use(cookieParser());
app.use(session( {
secret: 'session secret key',
resave: false,
saveUninitialized: true
}));
app.use(flash());
app.use(passport.initialize());
app.use(passport.session());
// Routing
app.get('/', function(req,res) {
res.render('index', {
title: 'Congo',
message: 'Congo',
user: req.user
});
});
app.get('/sell', function(req,res) {
res.render('item', {
title: 'Congo - Sell',
message: 'Sell',
user: req.user
});
});
app.get('/sign_in', function(req,res) {
res.render('sign_in', {
title: 'Congo',
message: 'sign in motherfucker',
user: req.user
});
});
app.post('/sign_in', function(req, res, next) {
passport.authenticate('local', function(err, user, info) {
if (err) return next(err)
if (!user) {
req.flash('error', 'Incorrect login details');
return res.redirect('/sign_in')
};
req.logIn(user, function(err) {
if (err) return next(err);
res.
return res.redirect('/');
});
})(req, res, next);
});
app.get('/sign_up', function(req, res) {
res.render('sign_up', {
title: 'Congo',
message: 'sign up',
user: req.user
});
});
app.post('/sign_up', function(req, res) {
var user = new User({
username: req.body.username,
email: req.body.email,
password: req.body.password
});
if (req.body.confirm != req.body.password) {
req.flash('error', 'Password do not match')
res.redirect('/sign_up')
};
else if (validator.isEmail(req.body.email) === false) {
req.flash('error', 'Invalid email address')
res.redirect('/sign_up')
};
else {
user.save(function(err) {
if (err) {
req.flash('error', 'Email already in use')
res.redirect('/sign_up')
} else {
req.logIn(user, function(err) {
res.redirect('/');
});
}
});
};
});
app.get('/logout', function(req, res){
req.logout();
res.redirect('/');
});
app.get('/forgot', function(req, res) {
res.render('forgot', {
user: req.user,
message: 'you wally'
});
});
app.get('/profile', function(req, res) {
res.render('profile', {
user: req.user,
message: 'User profile'
});
});
app.post('/forgot', function(req, res, next) {
async.waterfall([
function(done) {
crypto.randomBytes(20, function(err, buf) {
var token = buf.toString('hex');
done(err, token);
});
},
function(token, done) {
User.findOne({ email: req.body.email }, function(err, user) {
if (!user) {
req.flash('error', 'No account with that email address exists.');
return res.redirect('/forgot');
};
user.resetPasswordToken = token;
user.resetPasswordExpires = Date.now() + 3600000; // 1 hour
user.save(function(err) {
done(err, token, user);
});
});
},
function(token, user, done) {
var smtpTransport = nodemailer.createTransport('SMTP', {
service: 'Gmail',
auth: {
user: 'harryandrew.dix#gmail.com',
pass: process.env.GMAIL_PASS
};
});
var mailOptions = {
to: user.email,
from: 'passwordreset#demo.com',
subject: 'Node.js Password Reset',
text: 'You are receiving this because you (or someone else) have requested the reset of the password for your account.\n\n' +
'Please click on the following link, or paste this into your browser to complete the process:\n\n' +
'http://' + req.headers.host + '/reset/' + token + '\n\n' +
'If you did not request this, please ignore this email and your password will remain unchanged.\n'
};
smtpTransport.sendMail(mailOptions, function(err) {
req.flash('info', 'An e-mail has been sent to ' + user.email + ' with further instructions.');
done(err, 'done');
});
};
], function(err) {
if (err) return next(err);
res.redirect('/forgot');
});
});
app.get('/reset/:token', function(req,res) {
User.findOne({resetPasswordToken: req.params.token, resetPasswordExpires: { $gt: Date.now()}}, function(err,user) {
if (!user) {
req.flash('error', 'Password reset token invalid or expired.');
return res.redirect('/forgot');
}
res.render('reset', {
user: req.user,
message: 'reset dem pass'
});
});
});
app.post('/reset/:token', function(req, res) {
async.waterfall([
function(done) {
User.findOne({ resetPasswordToken: req.params.token, resetPasswordExpires: { $gt: Date.now() } }, function(err, user) {
if (!user) {
req.flash('error', 'Password reset token is invalid or has expired.');
return res.redirect('back');
};
user.password = req.body.password;
user.resetPasswordToken = undefined;
user.resetPasswordExpires = undefined;
user.save(function(err) {
req.logIn(user, function(err) {
done(err, user);
});
});
});
},
function(user, done) {
var smtpTransport = nodemailer.createTransport('SMTP', {
service: 'Gmail',
auth: {
user: 'harryandrew.dix#gmail.com',
pass: process.env.GMAIL_PASS
};
});
var mailOptions = {
to: user.email,
from: 'passwordreset#demo.com',
subject: 'Your password has been changed',
text: 'Hello,\n\n' +
'This is a confirmation that the password for your account ' + user.email + ' has just been changed.\n'
};
smtpTransport.sendMail(mailOptions, function(err) {
req.flash('success', 'Success! Your password has been changed.');
done(err);
});
};
], function(err) {
res.redirect('/');
});
});
// app.post('/add_item', function(req, res) {
// var item = new Item({
// owner: req.user.id,
// product_name: req.body.product_name,
// condition: req.body.condition,
// details: req.body.details,
// price: req.body.price
// });
// item.save(function(err) {
// if (err) {
// req.flash('error', 'Something went wrong, make sure you are signed in.')
// res.redirect('/add_item');
// } else {
// req.logIn(item, function(err) {
// res.redirect('/user_profile');
// });
// };
// });
// });
var server = app.listen(3000, function() {
var host = server.address().address;
var port = server.address().port;
console.log('Example app listening at http://%s:%s',host,port);
});
item.jade
include layout
html
block content
form(method='POST')
legend(style='font-family: Raleway; font-size: 30px;') Item Details
.form-group
label(for='product_name') Product Name
input.form-control(type='text', name='product_name', placeholder='include product name, brand, condition, colour etc.', required autofocus)
.form-group
label(for='condition') Condition
input.form-control(type='text', name='condition', placeholder='e.g. New, Used', required)
.form-group
label(for='image') Image
input.form-control(type='file', name='image')
.form-group
label(for='details') Details
textarea.form-control(name='details', cols='40', rows='5')
.form-group
label(for='price') Price
.input-group
.input-group-addon £
input.form-control(type='text', placeholder='Amount', required)
.input-group-addon .00
br
br
button#btnSubmit.btn.btn-primary(type='submit') Post Item

I think it's acting as form post and tries to reach app.post('/sell')
Change it:
button.btn.btn-primary(type='submit', href='/sell') Add Item
to:
a.btn.btn-primary(href='/sell') Add Item
also remove some parts of middleware and keep only these lines:
app.set('views', 'app/views');
app.set('view engine', 'jade');
app.set('port', process.env.PORT || 3000);
app.use(logger('dev'));
and then navigate in Your browser to /sell route, check if it's working.
if Yes - so problem with one of middlewares that we have deleted to check.

You should add a logger middleware and see what error the server gives when you try to go to that route. Another thing to try would be to rename the sell route and see if that works. That could indicate a conflict with another one of your routes, although it's not clear where this would be from looking at your code.