routing-middleware

To intercept requests at the platform level before hitting the cache, you create a root middleware file and export a default handler to apply rewrites, redirects, and routing rules. This enables per-request personalization across frameworks.

Yes, Vercel routing middleware works across multiple runtimes including Edge, Node.js, and Bun. It applies cross-cutting routing logic without coupling your application to a specific framework.

The difference between middleware.ts and proxy.ts involves file naming patterns for migration and clarity in request interception. Proper naming ensures correct routing rules and proxy behavior are applied at the platform level.

To set up IP-based routing and A/B testing with edge middleware, you implement request interception patterns within your default handler. This allows you to apply geo-based routing and personalization before the cache.

You need matcher configuration for request interception middleware to optimize performance by targeting specific request paths. Without it, the middleware runs on every request, potentially slowing down your application.

Yes, you can apply redirects and rewrites without coupling to a specific framework by using platform-level routing middleware. It operates across frameworks and runtimes to handle cross-cutting routing logic before the cache.