Welcome back to TechTalks with Manoj — the show where we go beyond buzzwords and break down the real architecture behind scalable, secure, and intelligent systems.

Today, we’re talking about one of the most overlooked — yet absolutely critical — pillars of system design: API Rate Limiting and Traffic Management.

It’s the invisible rulebook that keeps our systems fair, fast, and stable — even when the world hits “refresh” a million times a second.Most developers see rate limiting as a security feature. But for architects — it’s much more than that. It’s governance. It’s economics. It’s how we translate business contracts into system behavior.

In this episode, we’ll explore:

* How rate limiting evolved from a simple “safety brake” into a full-blown architectural control plane.

* The algorithms that define fairness — from Token Buckets to Sliding Windows — and when to use each.

* How distributed gateways coordinate global limits using Redis, Lua scripts, and consistent hashing.

* Why infrastructure enforcement at the edge — through NGINX, Cloudflare, and API gateways — is the difference between resilience and chaos.

* And how multi-tenant systems use rate limiting not just to protect themselves, but to enforce SLAs and even manage cost.

By the end of this episode, you’ll understand that rate limiting isn’t about saying “no” — it’s about sustaining trust, performance, and fairness at scale.

So if you’ve ever wondered why some APIs stay rock-solid under pressure while others crumble under traffic — this one’s for you.

Let’s dive in. 🚦

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