how to set NEXTAUTH_URL environment variable in Cloudflare deploy.

[oyeon-kwon]

Question 💬

I deployed the app to cloudflare using next auth. Like vercel, cloudflare provides a preview deployment, where the url is set randomly. (ex. https://2cc1cc59.na-lab.pages.dev).

So even if I set the NEXTAUTH_URL environment variable, I get 404 [CLIENT_FETCH_ERROR]
return an error.

I recognized through the official documentation (https://next-auth.js.org/deployment) that NEXTAUTH_URL does not have to be entered when distributing to vercel and netlify.

However, I am curious about how to enter the NEXTAUTH_URL environment variable in cloudflare.

How to reproduce ☕️

https://2cc1cc59.na-lab.pages.dev/

Contributing 🙌🏽

Yes, I am willing to help answer this question in a PR

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[tdack]

You can deploy to a preview environment with Cloudflare Pages and then your url would be preview.na-lab.pages.dev.

You can then deploy with:
wrangler pages deploy <path to build> --commit-dirty=true --branch=preview --project-name=na-lab