How can I see a user I just created on MongoDB using "register" function inside "passport" module, within a NodeJS application?

[Zohalmohal]

Prerequisites

• I have written a descriptive issue title

Mongoose version

6.0.11

Node.js version

14.x

MongoDB version

5

Operating system

Windows

Operating system version (i.e. 20.04, 11.3, 10)

10

Issue

I am creating a new user by the following code:

try {
    User.register(new User({username : email , email : email , password : password}),  password, (err , user) => {
        if (err) {
            console.log("error happened!" , err);
            res.statusCode = 500;
            res.setHeader('Content-Type', 'application/json');
            res.json({ err: err });
        } else {
            console.log('success');
            passport.authenticate('jwt')(req, res, () => {
                res.statusCode = 200;
                res.setHeader('Content-Type', 'application/json');
                res.json({ success: true, status: 'Registration Successful' });
            });
        }
    });

But when I try:

console.log("the user is" , User);

I get this result:

the user is Model { User }

And by trying this:
console.log("the username is" , User.username);
I get:

the username is undefined

Also in the post man I can see this result:

{
"success": "New user function model(doc, fields, skipId) {\n model.hooks.execPreSync('createModel', doc);\n if (!(this
instanceof model)) {\n return new model(doc, fields, skipId);\n
}\n const discriminatorKey =
model.schema.options.discriminatorKey;\n\n if
(model.discriminators == null || doc == null || doc[discriminatorKey]
== null) {\n Model.call(this, doc, fields, skipId);\n return;\n }\n\n // If discriminator key is set, use the
discriminator instead (gh-7586)\n const Discriminator =
model.discriminators[doc[discriminatorKey]] ||\n
getDiscriminatorByValue(model.discriminators,
doc[discriminatorKey]);\n if (Discriminator != null) {\n
return new Discriminator(doc, fields, skipId);\n }\n\n //
Otherwise, just use the top-level model\n Model.call(this, doc,
fields, skipId);\n } created!" }

For this line of the code:

    res.status(201).json({ 'success': `New user ${User} created!` });

I don't know if an error happens while I am creating a new user and this result is because of that or it's normal responses and I must see the saved user somehow differen?

Also this is my user.js file if it helps:

const mongoose = require('mongoose');
var passportLocalMongoose = require('passport-local-mongoose');

const Schema = mongoose.Schema;

const userSchema = new Schema({
    email: {
        type: String,
        required: true,
        unique: true
    },
    username: {
        type: String,
        // required: true,
        unique: true
    },
    password: {
        type: String,
        required: true
    },
    roles: {
        User: {
            type: Number,
            default: 2001
        },
        Editor: Number,
        Admin: Number
    },
    refreshToken: [String]
});

userSchema.plugin(passportLocalMongoose);

module.exports = mongoose.model('User', userSchema);

[deistermatheus]

console.log("the user is" , User)

This is logging the model instance.

console.log("the username is" , User.username);

This is trying to access username of a model, not your user document, which is an instance of the User model (new User call).

I have not looked at the docs for the plugin, but from your callback structure, it seems that you receive a user instance after registering, which you could access by referencing the lower case user inside of the callback instead of the upper case User, which is the model.

(err, user) => {
console.log(User.username)
} // undefined, this is the constructor, does not have a username

(err, user) => {
console.log(user.username)
} // some string, is a document instance, has a username

[vkarpov15]

@deistermatheus is correct. Do console.log("the user is" , user);. In your example user is a user document, and User is a model class.