auth-flows

Secure Next.js authentication is implemented using pre-built patterns for session management, OAuth integration, and protected routes. This approach provides vetted, production-ready configurations across leading providers like Auth.js, Clerk, and Supabase Auth to prevent common security vulnerabilities.

Role-based access control (RBAC) in React is best added using pre-configured permission checks and protected route setups. This method applies granular access rules without building custom infrastructure, supporting frameworks like Next.js and Vite alongside providers such as Clerk and Supabase.

OAuth integration with Supabase for a Vite app is set up by applying pre-built client-side and server-side session handling patterns. This provides secure token storage and validation logic to prevent XSS and CSRF vulnerabilities during the OAuth workflow.

Server and client-side session handling is fully supported across React and Next.js applications. This approach ensures secure session management and middleware setup across various supported frameworks, maintaining authentication state without exposing insecure tokens.

Clerk can be used to protect admin routes in a multi-tenant SaaS app by applying pre-built role-based access control patterns. This provides immediate GitHub OAuth login integration and granular permission checks without manually building the underlying auth infrastructure.

Authentication security best practices prevent vulnerabilities like XSS, CSRF, and insecure token storage. Mandatory security rules and validation logic are applied automatically during provider setup to ensure your React and Next.js applications remain secure.