Better Auth•2mo ago

Vercel Deploy Problems - Cookies not detected?

I just deployed my app to vercel and m ycookies are no longer detected? I sign in e.g. with a. magic link, i see my cookies in the application but i dont get redirected or whatever When i run it locally i do get redirected, only difference is one is deployed on vercel and the other isnt

12 Replies

eoshorizon_•2mo ago

any logs in vercel?

KayleeOP•2mo ago

these the logs

eoshorizon_•2mo ago

did you set env for cookies etc? can you check if there is any set-cookie in these logs?

KayleeOP•2mo ago

those are the only logs i do have a database hook at session.create will check if that is dying

eoshorizon_•2mo ago

yea also add logs, maybe to debug it further

KayleeOP•2mo ago

I guess i wonder do i need to set up the advanced cookie config too

KayleeOP•2mo ago

On the trusted origin side do you just need the hostname? e.g. https://my-app.vercel.app/ https://my-app.vercel.app/api/auth

eoshorizon_•2mo ago

https://my-app.vercel.app is enough for trustedOrigins or whatever your domain is

KayleeOP•2mo ago

can it also support wildcards? e.g. *.vercel.app as vercel has quite a few different domains Doesnt seem to be the problem i see the full session object when i console.log it As i can see th ecookies i suppose next possible thing to look at is my middlware?

ts 
export async function middleware(request: NextRequest) {
    const sessionCookie = getSessionCookie(request);

    if (!sessionCookie) {
        return NextResponse.redirect(new URL('/login', request.url));
    }

    return NextResponse.next();
}

ts 
export async function middleware(request: NextRequest) {
    const sessionCookie = getSessionCookie(request);

    if (!sessionCookie) {
        return NextResponse.redirect(new URL('/login', request.url));
    }

    return NextResponse.next();
}

Ok so my problem is with the useSecureCookies stuff Setting it true locally causes the same issue im seeing on vercel then disabling it locally it is expected (it is enabled by default in production according to docs)

eoshorizon_•2mo ago

hm weird

bekacru•2mo ago

check BETTER_AUTH_URL incase it's set to localhost on vercel as well. You don't need to manually set secure cookies. Better Auth will detect that based on the enviroment and the base url.

KayleeOP•2mo ago

Yup that was the problem, completly forgot to check its set on auth.ts, only had it set on the client :D Thank you

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Vercel Deploy Problems - Cookies not detected?

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