Better AuthBA
Better Auth•2mo ago
Abdul Wahab

How can I use Better Auth with a Node.js Express backend and a separate Next.js frontend?

I’m building an application where the backend is a standalone Node.js + Express server, and the frontend is a separate Next.js app. I’d like to integrate Better Auth for authentication and user management across both.

How can I properly configure Better Auth so that:
  • The Express backend handles authentication logic and token validation securely.
  • The Next.js frontend can interact with the backend for login, signup, and session management.
  • Authentication state (like JWT or session cookies) is maintained between the two apps, even though they run on different domains or ports.
What’s the recommended setup for this architecture — including configuration examples, best practices, and potential pitfalls when separating frontend and backend?
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