node.js mongoError not authorized on admin to execute command

Question

I'm studying Node.js and i can'y find any solution.. my consol send me many messages an one is more particulary strange : GET/signup - - ms - - has someone any idea about that ? Thanks in advance !

///////////////////////inclusion des librairies
 // 3 librairies pour gérer les messages flash
 var session = require('express-session');
 var cookieParser = require('cookie-parser');
 var flash = require('express-flash');
 //passerelle pour se connecter à node(node->bdd)
 var passport =require('passport');
 // stockage des sessions(id) et cookies côté serveur uniquement
 var mongoStore =require('connect-mongo')(session); // le session de express-session

//inclure al librairie  express
 var express = require('express');
// Inclusion de la librairie morgan (faire le lien avec la base de données)
var morgan = require('morgan');

// Inclusion de mongoose
 var mongoose = require('mongoose');

 //Inclusion moteur templates ejs
 var ejs = require('ejs');
  var engine =require('ejs-mate');
  // Inclusion de body parser pour les données des formulaires
  var bodyParser = require('body-parser');



  /////////////////////fin des librairies ///////////////

// stocker l'objet express dans une variable plus courte
 
 var app = express();



//inclure le fichier secret.js
var secret = require('./config/secret');
 ////////////connexion à la bd avec mongoose///
 
 mongoose.connect(secret.database, // voir pour création de db en ligne !!
 	{useNewUrlParser:true},
 	function(err){
 		if(err){console.log(err)
 		}else{
 			console.log('connexion OK');
 		}
 	});


/////////////////// gestion des Passerelles (middleware)/////////////////////////
app.use(express.static(__dirname + '/public')); // pour le style
app.use(morgan('dev'));
app.engine('ejs',engine);
app.set('view engine','ejs');
// les deux lignes ci-dessous pour récupérer les données des formulaires
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));
// affichage messages flash et gestion des cookies
app.use(cookieParser());
app.use(session({
	resave :true,
	saveUninitialized:true,
	secret :secret.secretKey,
	store : new mongoStore({
		url:secret.database,
		autoReconnect:true })
}));

app.use(flash());

//authentification
app.use(passport.initialize());
app.use(passport.session());


////////////////définition du chemin des pages principales////////////////////////

var mainRoutes =require('./routes/main');
app.use(mainRoutes);

var userRoutes =require('./routes/user');
app.use(userRoutes);



//app.post()

//app.put()

//app.delete()

AND THE CONSOLE SAYS :

Le serveur est lancé sur le port3000 (node:7828) DeprecationWarning: collection.ensureIndex is deprecated. Use createIndexes instead. connexion OK (node:7828) UnhandledPromiseRejectionWarning: MongoError: not authorized on admin to execute command { insert: "system.indexes", documents: [[{ns admin.sessions} {key [{expires 1}]} {name expires_1} {expireAfterSeconds 0} {unique false}]], ordered: true } at Function.MongoError.create (C:\Users\Utilisateur\Desktop\NODE\ECommerce\node_modules\connect-mongo\node_modules\mongodb-core\lib\error.js:31:11) at C:\Users\Utilisateur\Desktop\NODE\ECommerce\node_modules\connect-mongo\node_modules\mongodb-core\lib\connection\pool.js:497:72 at authenticateStragglers (C:\Users\Utilisateur\Desktop\NODE\ECommerce\node_modules\connect-mongo\node_modules\mongodb-core\lib\connection\pool.js:443:16) at Connection.messageHandler (C:\Users\Utilisateur\Desktop\NODE\ECommerce\node_modules\connect-mongo\node_modules\mongodb-core\lib\connection\pool.js:477:5) at TLSSocket. (C:\Users\Utilisateur\Desktop\NODE\ECommerce\node_modules\connect-mongo\node_modules\mongodb-core\lib\connection\connection.js:333:22) at TLSSocket.emit (events.js:182:13) at addChunk (_stream_readable.js:283:12) at readableAddChunk (_stream_readable.js:264:11) at TLSSocket.Readable.push (_stream_readable.js:219:10) at TLSWrap.onStreamRead [as onread] (internal/stream_base_commons.js:94:17) (node:7828) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1) (node:7828) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. GET /login - - ms - - GET /login - - ms - - GET /login - - ms - - GET /signup - - ms - -

Answer 1

The npm module connect-mongo can't handle mongodb+srv:// connection strings. You'll have to use the older connection string types that start with mongodb://.

If you are using MongoDB Atlas I recommend to go to connect on the cluster view, then connect your application and then select Node.js version 2.2.12, not 3.0.

You probably also have to change the /test or /admin in your connection string to /TheNameOfYourDatabase with your database name there. (See radihuq's answer below)