Hi I have been trying to figure this error out for two whole days, googling, reading relevant forums in here, but seems I can not solve this error to make my code to fully function. I would appreciate any help
the first bit stands for the description of the error and the later bits are the codes . Again thank you in advance.
[nodemon] restarting due to changes...
[nodemon] starting `node app.js`
C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\sdam\topology.js:291
const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
^
MongoServerSelectionError: connect ECONNREFUSED ::1:27017
at Timeout._onTimeout (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\sdam\topology.js:291:38)
at listOnTimeout (node:internal/timers:564:17)
at process.processTimers (node:internal/timers:507:7) {
reason: TopologyDescription {
type: 'Unknown',
servers: Map(1) {
'localhost:27017' => ServerDescription {
address: 'localhost:27017',
type: 'Unknown',
hosts: [],
passives: [],
arbiters: [],
tags: {},
minWireVersion: 0,
maxWireVersion: 0,
roundTripTime: -1,
lastUpdateTime: 50395518,
lastWriteDate: 0,
error: MongoNetworkError: connect ECONNREFUSED ::1:27017
at connectionFailureError (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\cmap\connect.js:387:20)
at Socket.<anonymous> (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\cmap\connect.js:310:22)
at Object.onceWrapper (node:events:628:26)
at Socket.emit (node:events:513:28)
at emitErrorNT (node:internal/streams/destroy:151:8)
at emitErrorCloseNT (node:internal/streams/destroy:116:3)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
cause: Error: connect ECONNREFUSED ::1:27017
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1247:16) {
errno: -4078,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '::1',
port: 27017
},
[Symbol(errorLabels)]: Set(1) { 'ResetPool' }
},
topologyVersion: null,
setName: null,
setVersion: null,
electionId: null,
logicalSessionTimeoutMinutes: null,
primary: null,
me: null,
'$clusterTime': null
}
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: null,
maxElectionId: null,
maxSetVersion: null,
commonWireVersion: 0,
logicalSessionTimeoutMinutes: null
},
code: undefined,
[Symbol(errorLabels)]: Set(0) {}
}
Node.js v18.7.0
[nodemon] app crashed - waiting for file changes before starting...
[nodemon] restarting due to changes...
[nodemon] starting `node app.js`
C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\sdam\topology.js:291
const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
^
MongoServerSelectionError: connect ECONNREFUSED ::1:27017
at Timeout._onTimeout (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\sdam\topology.js:291:38)
at listOnTimeout (node:internal/timers:564:17)
at process.processTimers (node:internal/timers:507:7) {
reason: TopologyDescription {
type: 'Unknown',
servers: Map(1) {
'localhost:27017' => ServerDescription {
address: 'localhost:27017',
type: 'Unknown',
hosts: [],
passives: [],
arbiters: [],
tags: {},
minWireVersion: 0,
maxWireVersion: 0,
roundTripTime: -1,
lastUpdateTime: 50466197,
lastWriteDate: 0,
error: MongoNetworkError: connect ECONNREFUSED ::1:27017
at connectionFailureError (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\cmap\connect.js:387:20)
at Socket.<anonymous> (C:\Users\류 광섭\Desktop\00-starting-project\node_modules\mongodb\lib\cmap\connect.js:310:22)
at Object.onceWrapper (node:events:628:26)
at Socket.emit (node:events:513:28)
at emitErrorNT (node:internal/streams/destroy:151:8)
at emitErrorCloseNT (node:internal/streams/destroy:116:3)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
cause: Error: connect ECONNREFUSED ::1:27017
at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1247:16) {
errno: -4078,
code: 'ECONNREFUSED',
syscall: 'connect',
address: '::1',
port: 27017
},
[Symbol(errorLabels)]: Set(1) { 'ResetPool' }
},
topologyVersion: null,
setName: null,
setVersion: null,
electionId: null,
logicalSessionTimeoutMinutes: null,
primary: null,
me: null,
'$clusterTime': null
}
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: null,
maxElectionId: null,
maxSetVersion: null,
commonWireVersion: 0,
logicalSessionTimeoutMinutes: null
},
code: undefined,
[Symbol(errorLabels)]: Set(0) {}
}
Node.js v18.7.0
[nodemon] app crashed - waiting for file changes before starting...
app.js
const path = require('path');
const express = require('express');
const blogRoutes = require('./routes/blog');
const app = express();
const db = require("./data/database");
// Activate EJS view engine
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));
app.use(express.urlencoded({ extended: true })); // Parse incoming request bodies
app.use(express.static('public')); // Serve static files (e.g. CSS files)
app.use(blogRoutes);
app.use(function (error, req, res, next) {
// Default error handling function
// Will become active whenever any route / middleware crashes
console.log(error);
res.status(500).render('500');
});
db.connectToDatabase().then(function () {
app.listen(3000);
});
database
const mongodb = require("mongodb");
const MongoClient = mongodb.MongoClient;
let database;
async function connect() {
const client = await MongoClient.connect("mongodb://localhost:27017");
database = client.db("blog");
}
function getDb() {
if (!database) {
throw { message: "Database connection not establisehd!" };
}
return database;
}
module.exports = {
connectToDatabase: connect,
getDb: getDb
};