rl

rl is a rate limit middleware for multiple limit rules.

Usage

Prepare an instance that implements rl.Limiter interface.

Then, generate the middleware ( func(next http.Handler) http.Handler ) with rl.New

package main

import (
    "log"
    "net/http"

    "github.com/2manymws/rl"
)

func main() {
    r := http.NewServeMux()
    r.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        w.Write([]byte("Hello World"))
    })

    var l rl.Limiter = newMyLimiter()
    m := rl.New(l)

    log.Fatal(http.ListenAndServe(":8080", m(r)))
}

Rate limiting approach

rl uses the Sliding Window Counter pattern same as go-chi/httprate.

• https://blog.cloudflare.com/counting-things-a-lot-of-different-things/
• https://www.figma.com/blog/an-alternative-approach-to-rate-limiting/

Reference

• go-chi/httprate
  • Most of rl's rate limit implementations refer to httprate. Thanks for the simple and clean implementation!