issue with the integration of mongodb with express

Question

**mongo details**

Connecting to:          mongodb://127.0.0.1:27017/?     
directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+1.8.0
Using MongoDB:          6.0.4
Using Mongosh:          1.8.0



**dependencies** 
"dependencies": {
"express": "^4.18.2",
"mongodb": "^5.1.0"
}

>! version of mongodb installed is different from the dependency version of mongo,  
is   that the problem i am facing error while integrating?




**error**

D:\week 5 mongo\mongos\node_modules\mongodb\lib\sdam\topology.js:277
            const timeoutError = new error_1.MongoServerSelectionError(`Server  
selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
                                 ^

 MongoServerSelectionError: connect ECONNREFUSED ::1:27017
   at Timeout._onTimeout (D:\week 5   
mongo\mongos\node_modules\mongodb\lib\sdam\topology.js:277:38)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7) {
reason: TopologyDescription {
type: 'Unknown',
servers: Map(1) {
  'localhost:27017' => ServerDescription {
    address: 'localhost:27017',
    type: 'Unknown',
    hosts: [],
    passives: [],
    arbiters: [],
    tags: {},
    minWireVersion: 0,
    maxWireVersion: 0,
    roundTripTime: -1,
    lastUpdateTime: 32955488,
    lastWriteDate: 0,
    error: MongoNetworkError: connect ECONNREFUSED ::1:27017
        at connectionFailureError (D:\week 5 
 mongo\mongos\node_modules\mongodb\lib\cmap\connect.js:383:20)
        at Socket.<anonymous> (D:\week 5   
 mongo\mongos\node_modules\mongodb\lib\cmap\connect.js:307:22)
        at Object.onceWrapper (node:events:628:26)
        at Socket.emit (node:events:513:28)
        at emitErrorNT (node:internal/streams/destroy:151:8)
        at emitErrorCloseNT (node:internal/streams/destroy:116:3)
        at process.processTicksAndRejections                                                                         
  (node:internal/process/task_queues:82:21) {  
      cause: Error: connect ECONNREFUSED ::1:27017
          at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1494:16) {
        errno: -4078,
        code: 'ECONNREFUSED',
        syscall: 'connect',
        address: '::1',
        port: 27017
      },
      [Symbol(errorLabels)]: Set(1) { 'ResetPool' }
    },
    topologyVersion: null,
    setName: null,
    setVersion: null,
    electionId: null,
    logicalSessionTimeoutMinutes: null,
    primary: null,
    me: null,
   '$clusterTime': null
  }
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: null,
maxElectionId: null,
maxSetVersion: null,
commonWireVersion: 0,
logicalSessionTimeoutMinutes: null
},
 at node:internal/main/run_main_module:23:47 {
 code: 'MODULE_NOT_FOUND',
requireStack: []
}

integration code

const express=require("express")
const app=express()
const port=3000

    const MongoClient = require('mongodb').MongoClient

  MongoClient.connect('mongodb://localhost:27017/store', (err, db) => {
if (err) throw err

  db.collection('items').find().toArray((err, result) => {
    if (err) throw err

   console.log(result)
 })
 })

app.listen(port)