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0verread / goralim Public

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A rate limiting package for Go to handle distributed workloads

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MIT license
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0verread/goralim

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README.md     README.md                          

go.mod        go.mod                             

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goralim.go    goralim.go                         

middleware.go middleware.go                      

redis.go      redis.go                           

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Goralim

 

goralim is a Golang package that provides a rate limiter based on
Token bucket algorithm. It is capabale to handle distributed workload
with its redis database support. It has HTTP server middleware
support (as of now).

     this is a beta version now and under active development. For
    production use, fork it and made changes based on your need.

Install

 

go get "github.com/0verread/goralim" -m

Usage

 

import (
  goralim "github.com/0verread/goralim"
)

        // Redis initialization
        config := goralim.RedisConfig {
                HOST: "127.0.0.1",
                PORT: 6379,
    // password
                PASS: "",
        }
        redisStore := goralim.NewRedisClient(config)

        // setup rate limiter for a key (key can be userId/client)
        // 10 is bucket size, 5 is bucket refill rate per second
        tb := goralim.NewTokenBucket("key123", redisStore, 10, 5)

        // create HTTP server and setup a goralim middleware to put a rate limiter
        handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                fmt.Fprintln(w, "Hey There this is a Request")
        })

        rateLimitedHandler := goralim.RateLimiter(tb, handler)
        http.ListenAndServe(":8080", rateLimitedHandler)

License

 

Under MIT license

About

A rate limiting package for Go to handle distributed workloads

Topics

redis golang distributed-systems rate-limiting rate-limiter

Resources

Readme

License

MIT license
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