POST /api/auth/theia-check validates the NextAuth session cookie
forwarded by Traefik. Returns 200 for authenticated users with
X-Auth-User/Email/Name headers, or 302 redirect to /auth for
unauthenticated requests — preserving the original Theia URL as
callbackUrl so users land back in the IDE after login.
Co-authored-by: Cursor <cursoragent@cursor.com>
BREAKING CHANGE: Replace SuperTokens with NextAuth.js
Why:
- SuperTokens had persistent Traefik routing issues
- SSL certificate not issuing correctly
- Complex infrastructure (separate container)
- NextAuth runs in Next.js app (simpler, no separate service)
Changes:
- Install next-auth, @auth/prisma-adapter, prisma
- Create NextAuth API route: app/api/auth/[...nextauth]/route.ts
- Add Prisma schema for NextAuth tables (users, sessions, accounts)
- Update auth page to use NextAuth signIn()
- Remove all SuperTokens code and dependencies
- Keep same Google OAuth (just simpler integration)
Benefits:
- No separate auth service needed
- No Traefik routing issues
- Sessions stored in Montreal PostgreSQL
- Simpler configuration
- Battle-tested, widely used
All authentication data stays in Montreal!
Co-authored-by: Cursor <cursoragent@cursor.com>