indigo

Indigo

About

• A distributed unique ID generator of using Sonyflake and encoded by Base58.
• ID max length is 11 characters by unsigned int64 max value.
• An Encoder can change your original encoder ;)

Install

$ go get github.com/osamingo/indigo@latest

Usage

package main

import (
	"log"
	"sync"
	"time"

	"github.com/osamingo/indigo"
)

var g *indigo.Generator

func init() {
	t := time.Unix(1257894000, 0) // 2009-11-10 23:00:00 UTC
	g = indigo.New(nil, indigo.StartTime(t))
	_, err := g.NextID()
	if err != nil {
		log.Fatalln(err)
	}
}

func main() {

	wg := sync.WaitGroup{}
	wg.Add(100)
	for i := 0; i < 100; i++ {
		go func() {
			defer wg.Done()
			id, err := g.NextID()
			if err != nil {
				log.Fatalln(err)
			} else {
				log.Println("ID:", id)
			}
		}()
	}

	wg.Wait()
}

Benchmark

# Machine: MacBook Pro (14-inch, 2021)
# CPU    : Apple M1 Pro
# Memory : 32 GB

goos: darwin
goarch: arm64
pkg: github.com/osamingo/indigo
BenchmarkGenerator_NextID-10        30079       39191 ns/op        7 B/op     1 allocs/op
PASS

Bibliography

• Sonyflake - A distributed unique ID generator inspired by Twitter's Snowflake.
• Base58 - Base58 is a group of binary-to-text encoding schemes used to represent large integers as alphanumeric text.

License

Released under the MIT License.