Example Rate Limiter in Go

rate-limit.go

// Based on https://gobyexample.com/rate-limiting
package limiters

import (
	"time"
)

func NewRateLimiter(rate time.Duration, burst uint) chan time.Time {
	burstyLimiter := make(chan time.Time, burst)
	for i := uint(0); i < burst; i++ {
		burstyLimiter <- time.Now()
	}

	go func() {
		for t := range time.Tick(rate) {
			burstyLimiter <- t
		}
	}()

	return burstyLimiter
}