Rate Limiting Next.js API Routes with Upstash Redis (and Why In-Memory Fails on Serverless)

Every public endpoint you ship — a contact form, a newsletter signup, an OTP sender — will be hit by bots within days. Next.js rate limiting is the cheapest defence, but the version most tutorials show does nothing once you deploy to serverless. This article covers the pattern I use in production on Vercel with Upstash Redis, the numbers behind my... Weiterlesen: Rate Limiting Next.js API Routes with Upstash Redis (and Why In-Memor…