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Why Vercel Edge Middleware skips requests in Next.js, and how to check matcher rules, edge cache, and invocation limits before escalating.
Learn how to use Vercel Edge Middleware to redirect users based on a cookie without hitting your origin, plus the trade‑offs you need to consider.
Learn how to implement rate limiting in Traefik Proxy, including the trade-offs between local in-memory counters and shared global stores, and how to avoid common identity trust pitfalls.
Edge Middleware moves auth, routing, and feature flags to the edge — but only if you respect the 1.5 MB bundle, 50 ms CPU, and no-request-body limits. Here's how to decide when it fits and how to verify it works.
Decide when to use Vercel Edge Middleware versus a Serverless Function for redirects, rewrites, and header changes based on latency, runtime limits, and need for async I/O.
Diagnosing Middleware Rule Precedence When deploying an application on Vercel, two Edge Middleware files are defined with overlapping route patterns. The first rule intends to add a custom header for all paths under /api/* , while the second rule redirects /api/v1/* to a legacy service. In production, requests to /api/v1/users receive the header from the fir
The goal is to achieve exactly‑once semantics for side‑effects (e.g., writes to a database or KV store) when a Vercel Serverless Function is retried by a client after a transient network error or 5xx response. Vercel treats each retry as a new invocation with a distinct request ID, so without application‑level guards the same logical request can trigger mult
nextjs
traefikproxy
vercel