Passport.js: how to access user object after authentication?

Question

I\'m using Passport.js to login a user with username and password. I\'m essentially using the sample code from the Passport site. Here are the relevant parts (I think) of my c

Answer 1

res.render accepts an optional parameter that is an object containing local variables for the view.

If you use passport and already authenticated the user then req.user contains the authenticated user.

// app.js
app.get('/dashboard', (req, res) => {
  res.render('./dashboard', { user: req.user })
})

---

// index.ejs
<%= user.name %>

Answer 2

I'm pretty new to javascript but as I understand it from the tutorials you have to implement some session middleware first as indicated by 250R.

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

app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())

let sess = {
    genid: (req) => {
        console.log('Inside the session middleware')
        console.log(req.sessionID)
        return uuid()
    },
    store: new FileStore(),
    secret: 'keyboard cat', // password from environment
    resave: false,
    rolling: true,
    saveUninitialized: true,
    cookie: {
        HttpOnly: true,
        maxAge: 30 * 60 * 1000 // 30 minutes
    }
}

app.use(session(sess))

// call passport after configuring the session with express-session
// as it rides on top of it
app.use(passport.initialize())
app.use(passport.session())

// then you will be able to use the 'user' property on the `req` object
// containing all your session details
app.get('/test', function (req, res) {
    console.log(req.user)
})

Answer 3

In reference to the Passport documentation, the user object is contained in req.user. See below.

    app.post('/login',
      passport.authenticate('local'),function(req, res) {
       // If this function gets called, authentication was successful.
       // `req.user` contains the authenticated user.
       res.redirect('/users/' + req.user.username);
     });

That way, you can access your user object from the page you redirect to.

In case you get stuck, you can refer to my Github project where I implemented it clearly.

Answer 4

late to party but this worked for me

use this in your app.js

app.use(function(req,res,next){
  res.locals.currentUser = req.user;
  next();
})

get current user details in client side like ejs

<%= locals.currentUser.[parameter like name || email] %>

Answer 5

You can define your route this way as follows.

router.post('/login',
passport.authenticate('local' , {failureRedirect:'/login', failureFlash: true}),
function(req, res) {
   res.redirect('/home?' + req.user.username);
});

In the above code snippet, you can access and pass any field of the user object as "req.user.field_name" to the page you want to redirect. One thing to note here is that the base url of the page you want to redirect to should be followed by a question mark.

Answer 6

You'll need to make sure that you register a middleware that populates req.session before registering the passport middlewares.

For example the following uses express cookieSession middleware

app.configure(function() {

  // some code ...

  app.use(express.cookieParser());
  app.use(express.bodyParser());
  app.use(express.cookieSession()); // Express cookie session middleware 
  app.use(passport.initialize());   // passport initialize middleware
  app.use(passport.session());      // passport session middleware 

  // more code ...

});