How to set useMongoClient (Mongoose 4.11.0)?

Question

I have connected to my database, with the help of the following code:

private connectDatabase(databaseUri: string): Promise<Mongoose.Connection> {

    return Mongoose.connect(databaseUri).then(() => {

        debug('Connected to MongoDB at %O', databaseUri);

        return Mongoose.connection;

    });

}

After that when I update my Mongoose to version 4.11.0, I got the following warning while running my tests:

(node:4138) DeprecationWarning: `open()` is deprecated in mongoose >= 4.11.0,

use `openUri()` instead, or set the `useMongoClient` option if using `connect()`

or `createConnection()`

Can you guide me on how to set the useMongoClient that is mentioned in the warning message?

Answer 1

You just have to set your useMongoClient as true to connect to your MongoDB server. If you are taking mongoose.connect() as your function then just refer the following code:

const mongoose = require('mongoose');

mongoose.Promise = global.Promise;

// Connect to MongoDB on localhost:27017

mongoose.connect('mongodb://localhost:27017/test', { useMongoClient: true });

// Create a model and insert a new doc

const Test = mongoose.model('Test', new mongoose.Schema({ name: String }));

Test.create({ name: 'Val' }).then(doc => console.log(doc));

If you are a beginner and want to know more about MongoDB, then check out this MongoDB tutorial by Intellipaat which will teach you MongoDB from basics.