What is token bucket rate limiting?

Bucket fills tokens steadily; requests eat one each. Bursts ok up to capacity—handles real traffic spikes.

Fixed window vs token bucket: which for Go APIs?

Token for public (burst-proof); fixed for internal (simple, fast). Use Lua either way.

How to rate limit with Redis and Go?

Lua scripts for atomicity—read/compute/write in one go. Ditch naive counters.

Building Rate Limiters in Go: Ditch the Libraries, Face the Chaos

Rate limiting seems simple until concurrency bites. This Go dev built from scratch—Redis Lua saves the day, but fixed windows? Still a boundary nightmare.

theAIcatchup Apr 10, 2026 4 min read

Go code implementing token bucket rate limiter with Redis Lua script

⚡ Key Takeaways

Build your own rate limiters in Go to grok the races libraries hide. 𝕏
Token bucket beats fixed window for public APIs—handles bursts without boundary exploits. 𝕏
Redis Lua scripts ensure atomicity; test with real CI Redis, not mocks. 𝕏

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#Go #Go programming #Rate Limiting #Redis #Redis Lua #token bucket

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Originally reported by Dev.to

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