session saved in the DB (req.session) result is {"cookie":{"originalMaxAge":172800000,"expires":172800000,"secure":false,"httpOnly":true,"path":"/"}}

[reyontech]

var store = new MongoStore(
{
uri: process.env.ATLAS_URI,
collection: 'sessions'
},
function(error) {
// Should have gotten an error
});
store.on('error', function(error) {
assert.ifError(error);
assert.ok(false);
});

app.use(session({
secret: 'abcdefghijklm',
saveUninitialized: true,
resave: true,
cookie: {
secure: false,
expires: 1000 * 60 * 60 * 24 * 2
},
store: store
}));

app.post('/cart', function(req, res){
var cart = req.body;
req.session.cart = cart;
req.session.cart = cart;
req.session.save(function(err){
if(err){
throw err;
}
res.json(req.session.cart);
});
})

app.get('/', function(req, res) {
res.send(req.session);
});

My result is like this {"cookie":{"originalMaxAge":172800000,"expires":172800000,"secure":false,"httpOnly":true,"path":"/"}}