Mongoose connect throwing a warning

Question

I am writing a mongodb connected app and while connecting to the server like bellow getting a warning like this:

Db.prototype.authenticate method will no longer be available in the next major release 3.x as MongoDB 3.6 will only allow auth against users in the admin db and will no longer allow multiple credentials on a socket. Please authenticate using MongoClient.connect with auth credentials.

My codes are like bellow

import mongoose from 'mongoose';
import config from './config';
mongoose.connect(config.db.uri);

at config.js

const config = {
    name: 'API',
    version: '0.0.1',
    env: process.env.NODE_ENV || 'development',
    port: process.env.PORT || 3000,
    base_url: process.env.BASE_URL || 'http://localhost:3000',
    db: {
        uri: 'mongodb://admin:[email protected]:27017/ai?authSource=admin',
    },
}

export default config;

I am using Node v8.0.0 and mongoose 4.10.5

Answer 1

The warning is due to the MongoDB driver deprecating the API used by mongoose's default connection logic. As of mongoose 4.11.1 you can opt to use mongo client by setting the useMongoClient option, for example

mongoose.connect(config.db.uri, { useMongoClient: true, /* other options */ })

Be reminded that using Mongo native client may have unwanted effects, so be sure to test everything out exhaustively
See more details here