Are you trying to set a cookie and jwt sign it?

No

Signed cookie means if I have the secret key that I can pass in the cookie parser function no one can't get the cookie without the secret key

In express we have two kind of cookie on is res.cookie and res.signedCookie

https://expressjs.com/en/resources/middleware/cookie-parser.html#:~:text=A%20signed%20cookie%20is%20a,value%20is%20prefixed%20with%20j%3A%20.

You can look into this

Yeah that's pretty much the same as JWT signing it

I'm pretty sure in Next there's no way to do that

Best bet is to look into JWT

It's the smae thing as what you described

as you can't get the cookie value unless you have the secret

I would use jose or jsonwebtoken

@Jesse thank you for your valuable reply. yeah, it's a way to do that but a signed cookie was the best option.

If you really want to use cookie-parser you still can in Next, but you're going to have to manually sign each cookie instead of getting your server to do it for each one like you would in express

However things like res.signedCookies won't work

when you create a cookie you'll have to sign it

and when you read it in your server you'll have to decode it