MongoParseError: credentials must be an object with 'username' and 'password' properties

[saveman71]

Do you want to request a feature or report a bug?

Bug

What is the current behavior?

As described in https://mongoosejs.com/docs/connections.html#options:

let connect = mongoose.connect('mongodb://localhost:27018/test', {
	user: 'admin',
    pass: 'password',
});

Should forward the auth to the nodejs driver. Looking at the object sent to the driver:

{
  authSource: 'admin',
  auth: { user: 'admin', password: 'password' },
  driverInfo: { name: 'Mongoose', version: '6.0.5' }
}

Looking at https://github.com/mongodb/node-mongodb-native/blob/4.0/docs/CHANGES_4.0.0.md#authentication, it says the expected format is username and not user, as the error suggests:

MongoParseError: credentials must be an object with 'username' and 'password' properties.

Noting that the following works:

let connect = mongoose.connect('mongodb://localhost:27018/test', {
	auth: {
		username: 'admin',
		password: 'password',
	}
});

Either the doc need to be updated to remove the user/pass backwards compat (which appears broken) or it needs to set username instead of user in the auth object.

What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.

MongoDB 3.4
Mongoose 6.0.5
NodeJS v14.17.6

Here is the code responsible for the bug:

mongoose/lib/connection.js

Lines 742 to 750 in e6820ee

	// Backwards compat
	if (options.user || options.pass) {
	options.auth = options.auth || {};
	options.auth.user = options.user;
	options.auth.password = options.pass;
	this.user = options.user;
	this.pass = options.pass;
	}

[im-ghost]

Still doesn't seems to work well here,despite putting it as an object
Auth:{username:""}

[vkarpov15]

@Peculiar-codes open a new issue and follow the issue template please