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Start your free trialPaul Scarpa
1,329 PointsCannot set property 'userId' of undefined
router.get('/', function(req, res, next) {
req.session.userId = 10101
console.log(req.session.userId)
});
Produces this in the console:
Express app listening on port 3000
undefined - Cannot set property 'userId' of undefined
Thus any attempt to set the session ID is failing.
Tomas Svojanovsky
26,680 PointsTomas Svojanovsky
26,680 PointsHello. Have you installed npm install express-session and set up? I think it means you add userId to undefined.