What does an API gateway with abuse detection do?

Sits in front, validates JWTs, rate-limits via sliding windows, flags bad IPs/agents with Blooms, detects stuffing and bot entropy — blocks creeps before they hit your backend.

How does sliding window rate limiting prevent bursts?

Timestamps in Redis sorted sets, atomic Lua cleans old entries, counts live ones — no boundary exploits, concurrent-safe.

Is this API gateway production-ready?

For small-med scale, yes — live demo proves it. Add sharding for big iron.

🔒 Security & Privacy

Rate Limits Failed — This API Gateway Hunts Bots Like a Pro

One dev's quest to build real backend armor: an API gateway that doesn't just count requests — it profiles the creeps behind them. Brutal honesty on the bugs that nearly tanked it.

theAIcatchup Apr 10, 2026 3 min read

Dashboard of API gateway blocking abuse with rate limit metrics and Bloom filter stats

⚡ Key Takeaways

Ditch fixed windows; Lua-powered sliding limits are atomic must-haves. 𝕏
Bot entropy + Blooms catch stealth scrapers rate limits miss. 𝕏
Bugs like per-request filters teach: share state, test shadows. 𝕏

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theAIcatchup

Community-driven. Code-first.

#API gateway #Abuse Detection #FastAPI Security #Rate Limiting

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Originally reported by Dev.to

⚡ Key Takeaways

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