Passport js local strategy custom callback "Missing credentials"

Question

I have a really annoying problem with Node js, express 4 and passport. I have tried all options I can think of, but still no solution. Couldn't find a solution from other posts for this problem.

Code:

app.post('/login', function(req, res, next) {

    console.log(req.body.user_email);
    console.log(req.body.user_password);

    passport.authenticate('local', function(err, user, info) {

        console.log(info);
...

The problem is that for some reason, passport does not get the credentials and says at the console.log(info) "Missing credentials", although when the username and password are logged above they are correct. The local strategy should also be configured properly:

passport.use(new LocalStrategy ({

    usernameField: 'user_email',
    passwordField: 'user_password',
    },

    function(username, password, done) {

        console.log(username);
        console.log(password);
...

The "function(username, password, done)" never gets run, because of the "Missing credentials".

The funny part is that from another html/ejs page where a call for authentication is made with:

app.post('/login_user', passport.authenticate('local', { successRedirect: '/loginSuccess', failureRedirect: '/loginFailure' }));

the problem does not exist.

Does anybody know what I am missing here?!?!

Thanks!

Does your `app.use(passport...` come before the routes and after the session middlewares? — laggingreflex, May 13 '15 at 09:24
Yes it does, only middleware that comes after the passport.use is i18n + the definition to the views folder where the html/ejs files are. — Murre, May 13 '15 at 16:31
Try posting the full code, like how you configured the the [local strategy](http://passportjs.org/guide/configure/), and do the credentials get logged there? — laggingreflex, May 13 '15 at 18:20
Already answered on S/O http://stackoverflow.com/questions/17074375/passport-authentication-failed-in-basic-example you have not set the body-parser middleware — Offirmo, Jan 28 '16 at 07:09
I had a similar problem to OP and as @Offirmo suggested app.use(bodyParser.json()); solved my issue — Dashiell Rose Bark-Huss, Nov 30 '20 at 18:52

score 1 · Answer 1 · edited Jul 19 '17 at 15:01

How you format the data in HTML form

Here I'm using Postman to demonstrate your issue:

This is not good

Just the output that I want

Not closing with (req, res)

Although this might not be related a bit, but the same problem occurs if I didn't do this.

Invoke req and res parameters before initiating the passport.authenticate
After you close the passport.authenticate, finish it with (req, res)

You need (req, res) at the end of your function, as so:

router.post('/signup', 
(req, res, next) => passport.authenticate('whatever-your-strategy-name-is', function(err, user, info) {

    // Just to see the sample expected output
    res.send(JSON.stringify(info)).status(200)

  })(req, res)
);

In standard familiar JS, it looks like this.

router.post('/signup', function (req, res, next) {

  passport.authenticate('whatever-your-strategy-name-is', function(err, user, info) {

    // Just to see the sample expected output
    res.send(JSON.stringify(info)).status(200)

  })(req, res) // passport.authenticate ends here
})

score 1 · Answer 2 · answered Jan 12 '21 at 04:24

1

Just in case this might be useful to someone in the future.. If your using POSTMAN and your sending a POST request(of say an email and password field for example) and you find yourself seeing this "missing credentials" response make sure that the format of the response is set to JSON and not like html or text cause a simple mistake like that can get you stuck for hours

answered Jan 12 '21 at 04:24

Rahma Hamza

11
1

Ahhh, this was it! This needs more upvotes. Switched my postman to use raw json and it worked! – Kitson Feb 09 '22 at 14:32

score 1 · Answer 3 · answered Jan 17 '21 at 17:20

I got this error of missing credentials is when i was sending email as a first parameter, but passport local strategy accepts first parameter a Username So you need to set it as email like that :

passport.use(
    new LocalStrategy({ usernameField: "email" }, (email, password, done) => {

score -2 · Answer 4 · answered Aug 17 '15 at 08:12

There is one minor mistake or correction required.

You are doing:

app.post('/login', function(req, res, next) {

    console.log(req.body.user_email);
    console.log(req.body.user_password);

    passport.authenticate('local', function(err, user, info) {

        console.log(info);

Just create a user variable and set the passed in user_email & user_password as shown below.

app.post('/login', function(req, res, next) {

    console.log(req.body.user_email);
    console.log(req.body.user_password);

    var user = req.body;

    passport.authenticate('local', function(err, user, info) {

        console.log(info);

This should work.

You're not using the `user` variable you've made anywhere. – Dylan Moore Oct 11 '20 at 22:14 — Dylan Moore, Oct 11 '20 at 22:14

Passport js local strategy custom callback "Missing credentials"

4 Answers4

How you format the data in HTML form

Not closing with (req, res)

Linked