Rate limiting isn't an npm dependency — it's an abuse policy. Before copying middleware, you need to define what asset you're protecting, what abuse pattern you expect, and what a false positive costs you. A guide with a decision matrix, real gotchas, and observability for Next.js.
Before you copy-paste rate limiting middleware, define what asset you're protecting, what abuse you're expecting, and what a false positive costs you. Without that, the library solves nothing.
Before you install any rate limiting middleware in Next.js, you need to define what asset you're protecting, what abuse you're expecting, and what a false positive actually costs you. The library is the last decision. The policy is the first.
32 years in the dev trenches. Here I write what I learned, what I broke, and what nobody tells you in the tutorials.
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