snowflake/README.md
2016-06-01 15:15:24 -05:00

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flake
====
[![GoDoc](https://godoc.org/github.com/bwmarrin/flake?status.svg)](https://godoc.org/github.com/bwmarrin/flake) [![Go report](http://goreportcard.com/badge/bwmarrin/flake)](http://goreportcard.com/report/bwmarrin/flake) [![Build Status](https://travis-ci.org/bwmarrin/flake.svg?branch=master)](https://travis-ci.org/bwmarrin/flake) [![Discord Gophers](https://img.shields.io/badge/Discord%20Gophers-general-blue.svg)](https://discord.gg/0f1SbxBZjYoCtNPP)
flake is a [Go](https://golang.org/) package that provides a very simple twitter
snowflake ID generator along with several functions to convert an ID into
different formats.
## Getting Started
### Installing
This assumes you already have a working Go environment, if not please see
[this page](https://golang.org/doc/install) first.
```sh
go get github.com/bwmarrin/flake
```
### Usage Example
Import the package into your project.
```go
import "github.com/bwmarrin/flake"
```
Construct a new flake Node that can be used to generate snowflake IDs then call
the Generate method to get a unique ID. The only argument to the NewNode()
method is a Node number. Each node you create must have it's own unique
Node number. A node number can be any number from 0 to 1023.
** Example Program: **
```go
package main
import (
"fmt"
"github.com/bwmarrin/flake"
)
func main() {
// Create a new Node with a Node number of 1
node, err := flake.NewNode(1)
if err != nil {
fmt.Println(err)
return
}
// Generate a snowflake ID.
id, err := node.Generate()
if err != nil {
fmt.Println(err)
return
}
// Print out the ID in a few different ways.
fmt.Printf("Int64 ID: %d\n", id)
fmt.Printf("String ID: %s\n", id)
fmt.Printf("Base2 ID: %s\n", id.Base2())
fmt.Printf("Base64 ID: %s\n", id.Base64())
// Print out the ID's timestamp
fmt.Printf("ID Time : %d\n", id.Time())
// Print out the ID's node number
fmt.Printf("ID Node : %d\n", id.Node())
// Print out the ID's sequence number
fmt.Printf("ID Step : %d\n", id.Step())
}
```