```const timeoutError = new error_1.MongoServerSelectionError(Server selection timed out after ${serverSelectionTimeoutMS} ms, this.description); .MongoServerSelectionError: connect ECONNREFUSED ::1:27017

const {MongoClient}=require('mongodb');

const url='mongodb://localhost:27017/';

const client= new MongoClient(url);

const dataBase= 'nodejs';

async function getdata(){
    
    let result= await client.connect(); 
     console.log('connect to server')
    let db= result.db(dataBase)
    console.log('2')
    let collection = db.collection('node');
    let response= await collection.find({}).toArray();
    console.log(response)
}

getdata();

CodePudding user response：

Change uri to

const url='mongodb://0.0.0.0:27017/';

CodePudding user response：

This happened probably because the MongoDB service isn't started.

Follow the below steps to start it:

1. Go to Control Panel and click on Administrative Tools. (in Windows the path will be: Control Panel\System and Security\Administrative Tools)
2. Double click on Services. A new window opens up.
3. Search MongoDB.exe. Right click on it and select Start.

The server will start. Now execute npm start again and the code might work this time.

The answer from a similar question (I can't comment so I post as an answer)