mongoDB 관련 질문

#!/usr/bin/env node

/**
 * Module dependencies.
 */

var app = require('../app');
var debug = require('debug')('suzil:server');
var http = require('http');
const mongoose = require("mongoose");
const userConfig = require("../config/userConfig.json");

let db = mongoose.connection;
db.on("error",console.error);
db.once("open",()=>{
  console.log("Connected to mongo Server");  
});

mongoose.connect(
  `mongodb+srv://wiyuchan1021:${userConfig.PW}>@suzilo.i1je5.mongodb.net/suzilo?retryWrites=true&w=majority`,
  {useNewUrlParser: true, useUnifiedTopology: true}
)

/**
 * Get port from environment and store in Express.
 */

var port = normalizePort(process.env.PORT || '3000');
app.set('port', port);

/**f
 * Create HTTP server.
 */

var server = http.createServer(app);

/**
 * Listen on provided port, on all network interfaces.
 */

server.listen(port);
server.on('error', onError);
server.on('listening', onListening);

/**
 * Normalize a port into a number, string, or false.
 */

function normalizePort(val) {
  var port = parseInt(val, 10);

  if (isNaN(port)) {
    // named pipe
    return val;
  }

  if (port >= 0) {
    // port number
    return port;
  }

  return false;
}

/**
 * Event listener for HTTP server "error" event.
 */

function onError(error) {
  if (error.syscall !== 'listen') {
    throw error;
  }

  var bind = typeof port === 'string'
    ? 'Pipe ' + port
    : 'Port ' + port;

  // handle specific listen errors with friendly messages
  switch (error.code) {
    case 'EACCES':
      console.error(bind + ' requires elevated privileges');
      process.exit(1);
      break;
    case 'EADDRINUSE':
      console.error(bind + ' is already in use');
      process.exit(1);
      break;
    default:
      throw error;
  }
}

/**
 * Event listener for HTTP server "listening" event.
 */

function onListening() {
  var addr = server.address();
  var bind = typeof addr === 'string'
    ? 'pipe ' + addr
    : 'port ' + addr.port;
  debug('Listening on ' + bind);
}

코드 실행하면
PS C:\Users\yuchan\suzil> npm start

> suzil@0.0.0 start

> nodemon ./bin/www

[nodemon] 3.1.7

[nodemon] to restart at any time, enter rs

[nodemon] watching path(s): .

[nodemon] watching extensions: js,mjs,cjs,json

[nodemon] starting node ./bin/www

(node:13580) [MONGODB DRIVER] Warning: useNewUrlParser is a deprecated option: useNewUrlParser has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version

(Use node --trace-warnings ... to show where the warning was created)

(node:13580) [MONGODB DRIVER] Warning: useUnifiedTopology is a deprecated option: useUnifiedTopology has no effect since Node.js Driver version 4.0.0 and will be removed in the next major version

MongoServerError: bad auth : authentication failed

at Connection.sendCommand (C:\Users\yuchan\node_modules\mongodb\lib\cmap\connection.js:289:27)

at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

at async Connection.command (C:\Users\yuchan\node_modules\mongodb\lib\cmap\connection.js:312:26)

at async continueScramConversation (C:\Users\yuchan\node_modules\mongodb\lib\cmap\auth\scram.js:131:15)

at async executeScram (C:\Users\yuchan\node_modules\mongodb\lib\cmap\auth\scram.js:80:5)

at async ScramSHA1.auth (C:\Users\yuchan\node_modules\mongodb\lib\cmap\auth\scram.js:39:16)

at async performInitialHandshake (C:\Users\yuchan\node_modules\mongodb\lib\cmap\connect.js:104:13)

at async connect (C:\Users\yuchan\node_modules\mongodb\lib\cmap\connect.js:24:9) {

errorResponse: {

ok: 0,

errmsg: 'bad auth : authentication failed',

code: 8000,

codeName: 'AtlasError'

ok: 0,

code: 8000,

codeName: 'AtlasError',

connectionGeneration: 0,

[Symbol(errorLabels)]: Set(2) { 'HandshakeError', 'ResetPool' }

}

node:internal/process/promises:391

triggerUncaughtException(err, true /* fromPromise */);