NodeJS + mongoose - user dynamic database globally - node.js

Question

I am using NodeJS, ExpressJS, express-session, connect-mongo and mongoose. I want to create a database for every user. On login the database connection should be globally to use.
This is the: loginController
exports.loginPost = (req, res, next) => {
const email = req.body.email;
const pass = req.body.password;
const pin = req.body.pin;
if (email && pass && pin) {
User.findOne({ email })
.then(u => {
bcrypt.compare(pass, u.password, (err, result) => {
if (!err) {
bcrypt.compare(pin, u.pin, (err2, result2) => {
if (!err2) {
let msg = {};
global.userDB = null;
msg.success = [{ text: "You are now logged in..." }];
req.session.loggedIn = true;
req.session.userId = u._id;
req.session.role= u.role;
const Mongoose = require("mongoose").Mongoose;
const inst = new Mongoose();
let db = "user-" + orgid;
global.userDB = inst.connect(
"mongodb://localhost:27017?authSource=dbWithUserCredentials",
{
useNewUrlParser: true,
auth: { authSource: "admin" },
user: "root",
pass: "root",
dbName: db,
autoReconnect: true
}
);
return res.redirect("/");
} else {
console.log(err2);
}
});
} else {
return res.render("login", {
req,
msg: null
});
}
});
})
.catch(err => {
return res.render("login", {
req,
msg: err
});
});
}
};
This is the adressModel:
const aschema = global.userDB.Schema;
var AdressSchema = new aschema({
name: {
type: String
}
});
var Address = global.userDB.model("Adress", AdressSchema);
module.exports = Address;
When I'm running a page where I'm using this model, i see this on the console when I'm using this command: "console.log(global.userDB)";
NativeConnection {
base:
Mongoose {
connections: [ [Circular] ],
models: {},
modelSchemas: {},
options: { pluralization: true },
plugins: [ [Array], [Array], [Array] ] },
collections: {},
models: {},
config: { autoIndex: true },
replica: false,
hosts: null,
host: 'localhost',
port: 27017,
user: 'root',
pass: 'root',
name: 'user-undefined',
options:
{ pass: 'root',
user: 'root',
auth: { authSource: 'admin' },
useNewUrlParser: true,
db: { forceServerObjectId: false, w: 1 },
server: { socketOptions: {}, auto_reconnect: true },
replset: { socketOptions: {} },
mongos: undefined },
otherDbs: [],
states:
[Object: null prototype] {
'0': 'disconnected',
'1': 'connected',
'2': 'connecting',
'3': 'disconnecting',
'4': 'unauthorized',
'99': 'uninitialized',
disconnected: 0,
connected: 1,
connecting: 2,
disconnecting: 3,
unauthorized: 4,
uninitialized: 99 },
_readyState: 2,
_closeCalled: false,
_hasOpened: false,
_listening: false,
db:
Db {
_events: [Object: null prototype] {},
_eventsCount: 0,
_maxListeners: undefined,
s:
{ databaseName: 'user-undefined',
dbCache: {},
children: [],
topology: [Server],
options: [Object],
logger: [Logger],
bson: BSON {},
authSource: undefined,
readPreference: undefined,
bufferMaxEntries: -1,
parentDb: null,
pkFactory: undefined,
nativeParser: undefined,
promiseLibrary: [Function: Promise],
noListener: false,
readConcern: undefined },
serverConfig: [Getter],
bufferMaxEntries: [Getter],
databaseName: [Getter] } }
Can someone say, why i get an 'undefined' in the database-name, but when I console.log the 'db'-variable there is the correct user._id.
Thanks!