cuid

README

cuid

Collision-resistant hashes for the cloud, in Go.

The ```cuid`` package provides collision-resistant ids optimized for horizontal scaling and sequential lookup performance. This README file is just going to cover the basics and the Go-specific implementation details.

Please refer to the main project site for the full rationale behine CUIDs.

Sample CUID

ch72gsb320000udocl363eofy

Installation

HEAD:

go get github.com/lucsky/cuid

v1.0.0:

go get gopkg.in/lucsky/cuid.v1

Example usage

package main

import fmt
import "gopkg.in/lucsky/cuid.v1"

func main() {
    fmt.Println(cuid.New())
}

Go package specific features

The Go cuid package provides APIs to specify a custom random source as well as a custom counter. A custom counter implementation could provide a centralized Redis base counter, for example.

Documentation

Index

• Constants
• func New() string
• func SetCounter(cnt Counter)
• func SetRandom(rnd *rand.Rand)
• func SetRandomSource(src rand.Source)
• type Counter
• type DefaultCounter
  • func (c *DefaultCounter) Next() int32

Constants

const (
	BLOCK_SIZE = 4
	BASE       = 36
)

Functions

func New

func New() string

func SetCounter

func SetCounter(cnt Counter)

func SetRandom

func SetRandom(rnd *rand.Rand)

func SetRandomSource

func SetRandomSource(src rand.Source)

Types

type Counter

type Counter interface {
	Next() int32
}

type DefaultCounter

type DefaultCounter struct {
	// contains filtered or unexported fields
}

func (*DefaultCounter) Next

func (c *DefaultCounter) Next() int32