mongoose.connect giving error in nodejs - node.js

Question

I am using node to connect to mongoose database, but when i run the code, it gives error as:
Uncaught TypeError: undefined is not a function
(anonymous function) server.js:13
Below is the code which i am running in server.js
var express= require(['express']);
var bodyParser = require(['body-parser']);
var cookieParser = require(['cookie-parser']);
var expressSession = require(['express-session']);
var mongoose = require(['mongoose']);
var mongoStore = require(['connect-mongo'])({session: expressSession});
require(['./models/users.js']);
mongoose.connect('mongodb://localhost/userregistration');
var app = express();
app.engine('.html', require('ejs').__express);
app.set('views',__dirname + '/views');
app.set('view engine','html');
app.use(bodyParser());
app.use(cookieParser());
app.use(expressSession({
secret: 'SECRET',
cookie: {maxAge:60*60*1000 },
store: new mongoStore({
db: mongoose.connection.db,
collection: 'sessions'
})
}));
require('./routes')(app);
app.listen(80);
looking at the logs, the code is giving the error at:
mongoose.connect('mongodb://localhost/userregistration');

Answer 1

I think you forgot to require express-session.
Here is the example
ExpressSession
app.use(express.session({
secret: 'SECRET',
cookie: {maxAge:60*60*1000 },
store: new mongoStore({
db: mongoose.connection.db,
collection: 'sessions'
})
}));

Answer 2

connect-mongo has a special option for using Mongoose connections, try using that:
store: new mongoStore({
mongoose_connection: mongoose.connection,
collection: 'sessions'
})
If that doesn't fix it, please post more information (like a full stack trace and the actual code you're running, since those require's don't look right).

Answer 3

// Replace 'db' by 'mongooseConnection '
app.use(expressSession({
secret: 'SECRET',
cookie: {maxAge: 60 * 60 * 1000},
store: new mongoStore({
mongooseConnection: mongoose.connection,
collection: 'sessions'
})
}));