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JavaScript Express Basics Deeper into Routing with Express Statelessness, Setting and Reading Cookies

Rebecca Jensen
Rebecca Jensen
11,580 Points
Posted by Rebecca Jensen
Rebecca Jensen
11,580 Points

Cookies are undefined?

I'm following the Statelessness, Setting and Reading Cookies tutorial, which has you remembering cookies via...

res.render('pageName', {name: req.cookies.username})

...but my cookies are returning as undefined. In the tutorial, we have a form for the user to submit their name, which is the cookie we want to store. I've done this and watched the cookies in the console, and I see my entry to the form flash in the cookie list, then become undefined.

Why is this? And how can I circumvent it?

Thanks!

Iain Simmons
Iain Simmons
Treehouse Moderator 32,305 Points

Can you share your code where you set the cookie in the response to a POST request?

David Ray
David Ray
6,691 Points

from another question posted on here, I used Nick Trabue's answer as posted below and this worked for me

app.get('hello', (req, res) => {
     res.render('hello', {name: req.cookies['username']});
});

app.post('/hello', (req, res) => {
     res.cookie('username', req.body.username);
    res.render('hello', {name: req.cookies['username']});
});