nextjs-middleware

Next.js middleware handles authentication by intercepting incoming requests to verify session tokens and JWTs. You can implement role-based access control to authorize users before they reach specific routes.

Next.js middleware supports security header injection. You can intercept requests and append security headers like HSTS and CSP to the response before it proceeds to the intended route handler.

Next.js middleware streamlines URL manipulation by intercepting requests to perform redirects and rewrites. This approach enables dynamic routing capabilities such as geo-based routing without altering the underlying page structure.

Request interception in Next.js middleware allows you to monitor incoming traffic to API routes. By evaluating request frequency, you can implement rate limiting to protect endpoints from excessive traffic.

Next.js middleware leverages server functions to intercept and manipulate requests, enabling A/B testing by routing users to different variants. It also supports API gateway functionalities by centralizing request processing.

Next.js middleware is required to modify headers proactively. It intercepts incoming requests, allowing you to inject custom headers dynamically before the request reaches its designated handler.