Rate Limiter Pattern in Go
Go Concurrency Patterns Series: ← Circuit Breaker | Series Overview | Semaphore Pattern → What is the Rate Limiter Pattern? Rate limiting controls the rate at which operations are performed, preventing system overload and ensuring fair resource usage. It’s essential for protecting services from abuse, managing resource consumption, and maintaining system stability under load. Common Algorithms: Token Bucket: Allows bursts up to bucket capacity Fixed Window: Fixed number of requests per time window Sliding Window: Smooth rate limiting over time Leaky Bucket: Constant output rate regardless of input Real-World Use Cases API Rate Limiting: Prevent API abuse and ensure fair usage Database Throttling: Control database query rates File Processing: Limit file processing rate Network Operations: Control bandwidth usage Background Jobs: Throttle job processing User Actions: Prevent spam and abuse Token Bucket Rate Limiter package main import ( "context" "fmt" "sync" "time" ) // TokenBucket implements the token bucket rate limiting algorithm type TokenBucket struct { mu sync....