Properly close mongoose's connection once you're done

You can close the connection with

mongoose.connection.close()

The other answer didn't work for me. I had to use mongoose.disconnect(); as stated in this answer.

You can set the connection to a variable then disconnect it when you are done:

var db = mongoose.connect('mongodb://localhost:27017/somedb');

// Do some stuff

db.disconnect();

Just as Jake Wilson said: You can set the connection to a variable then disconnect it when you are done:

let db;
mongoose.connect('mongodb://localhost:27017/somedb').then((dbConnection)=>{
    db = dbConnection;
    afterwards();
});


function afterwards(){

    //do stuff

    db.disconnect();
}

or if inside Async function:

(async ()=>{
    const db = await mongoose.connect('mongodb://localhost:27017/somedb', { useMongoClient: 
                  true })

    //do stuff

    db.disconnect()
})

otherwise when i was checking it in my environment it has an error.

I'm using version 4.4.2 and none of the other answers worked for me. But adding useMongoClient to the options and putting it into a variable that you call close on seemed to work.

var db = mongoose.connect('mongodb://localhost:27017/somedb', { useMongoClient: true })

//do stuff

db.close()