undefined error in express js session

Question

i want save data in session params.

/* Modules */

/* App Settings */
// session settings
app.use(express.cookieParser());
app.use(express.session({secret: '1234567890QWERTY'}));

app.get('/', function(req,res){
if(req.session.param){
    console.log('OK!');
}else{
    console.log('not found session data');
}
});

app.listen(app.get('port'));

when i run this codes

TypeError: Cannot read property 'param' of undefined
at C:\Users\frknbasaran\campusca\app.js:25:16

Thanks in advance

Sessions won't work unless you have these 3 in this order:

app.use(express.cookieParser());
app.use(express.session({secret: '1234567890QWERTY'}));
app.use(app.router);

Why exactly would the session have a `param` key when you've set no such key? `req.session` holds session data, `req.params` is something else ? — adeneo, Apr 14 '14 at 21:34
Have you checked this question? : http://stackoverflow.com/questions/10191692/session-is-undefined-when-using-express-redis-for-session-store/10239147 — mati, Apr 14 '14 at 21:35
@Matias thanks guy! i solve my problem with these steps Sessions won't work unless you have these 3 in this order: app.use(express.cookieParser()); app.use(express.session({secret: '1234567890QWERTY'})); app.use(app.router); — Furkan Başaran, Apr 14 '14 at 21:43

score 1 · Answer 1 · answered Apr 14 '14 at 21:34

1

You need to set it first... I did not see this in your code, something like:

req.session.param = "Hello World";

Unless param refers to the property that comes with the request object that only url variables.

answered Apr 14 '14 at 21:34

Dalorzo

19,834
7
55
102

score 1 · Answer 2 · answered Apr 14 '14 at 21:47

1

You can't set req.session.params, since its req.session which is none. What about cookieSession. That should give you req.session http://expressjs.com/3x/api.html#cookieSession

answered Apr 14 '14 at 21:47

Morten Olsen

1,806
14
18

score 0 · Accepted Answer · answered Oct 26 '15 at 11:30

0

Sessions won't work unless you have these 3 in this order:

app.use(express.cookieParser());
app.use(express.session({secret: '1234567890QWERTY'}));
app.use(app.router);

answered Oct 26 '15 at 11:30

Furkan Başaran

1,927
2
19
28

undefined error in express js session

3 Answers3