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Syllabus

The interview

The Interview Prompt
Clarify Requirements
How to Approach

Design

Entities & Config
Strategy & Clock

Implement core

Core Skeleton

Algorithms

Token Bucket
Fixed & Sliding Windows
Leaky Bucket

Concurrency

Thread Safety

Multi-instance

Why In-Memory Fails
Redis & DB Limiting

Ship it

Decision Matrix & Run

Rate Limiter

Syllabus

The interview

The Interview Prompt
Clarify Requirements
How to Approach

Design

Entities & Config
Strategy & Clock

Implement core

Core Skeleton

Algorithms

Token Bucket
Fixed & Sliding Windows
Leaky Bucket

Concurrency

Thread Safety

Multi-instance

Why In-Memory Fails
Redis & DB Limiting

Ship it

Decision Matrix & Run

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Thread Safety

Preview

// WRONG — check and decrement are not atomic

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