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Programming language: Go
License: MIT License
Tags: Utilities    
Latest version: v3.0.0

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README

rerate

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rerate is a redis-based ratecounter and ratelimiter

  • Dead simple api
  • With redis as backend, multiple rate counters/limiters can work as a cluster
  • Count/Limit requests any period, 2 day, 1 hour, 5 minute or 2 second, it's up to you
  • Recording requests as a histotram, which can be used to visualize or monitor
  • Limit requests from single ip, userid, applicationid, or any other unique identifier

Tutorial

package main

import (
    "github.com/abo/rerate"
)

...

func main() {
    // redigo buckets
    pool := newRedisPool("localhost:6379", "")
    buckets := rerate.NewRedigoBuckets(pool)

    // OR redis buckets
    // client := redis.NewClient(&redis.Options{
    //   Addr:     "localhost:6379",
    //   Password: "",
    //   DB:       0,
    // })
    // buckets := rerate.NewRedisBuckets(client)

    // Counter
    counter := rerate.NewCounter(buckets, "rl:test", 10 * time.Minute, 15 * time.Second)
    counter.Inc("click")
    c, err := counter.Count("click")

    // Limiter
    limiter := rerate.NewLimiter(buckets, "rl:test", 1 * time.Hour, 15 * time.Minute, 100)
    limiter.Inc("114.255.86.200")
    rem, err := limiter.Remaining("114.255.86.200")
    exceed, err := limiter.Exceeded("114.255.86.200")
}

Installation

Install rerate using the "go get" command:

go get github.com/abo/rerate

Documentation

Sample - Sparkline

    cd cmd/sparkline
    npm install webpack -g
    npm install
    webpack && go run main.go

Open http://localhost:8080 in Browser, And then move mouse.

Contributing

WELCOME

License

rerate is available under the The MIT License (MIT).


*Note that all licence references and agreements mentioned in the rerate README section above are relevant to that project's source code only.