How to set useMongoClient (Mongoose 4.11.0)?

Question

This is the code I use to connect to my database:

private connectDatabase(databaseUri: string): Promise<Mongoose.Connection> {     return Mongoose.connect(databaseUri).then(() => {         debug('Connected to MongoDB at %O', databaseUri);         return Mongoose.connection;     }); } 

Today I updated Mongoose to version 4.11.0 and I got this warning when 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()` 

I can't find any information on how to "set useMongoClient".

Do you guys know how to?

Answer 1

This is how you use useMongoClient:

mongoose.connect('mongodb://localhost/advisorDemoTestDB', { useMongoClient: true }) 

Answer 2

Add { useMongoClient: true } as another argument to connect or createConnection method, its depends on version of mongoose you are using.

// Using `mongoose.connect`... var promise = mongoose.connect('mongodb://localhost/myapp', {   useMongoClient: true,   /* other options */ }); // Or `createConnection` var promise = mongoose.createConnection('mongodb://localhost/myapp', {   useMongoClient: true,   /* other options */ });