Flake Id Generator

FlakeId is distributed unique ID generator inspired by Twitter's Snowflake

A FlakeId composed of

| flag  | timeoffset in millisec | machine id | sequence num |
| ----- | ---------------------- | ---------- | ------------ |
| 1 bit | 48 bits                | 8 bits     | 7 bits       |

Installation

go get github.com/marverlous811/go-flake-id

Usage

The function NewIdFlakeGenerator creates a new Flake Id generator instance

func NewIdFlakeGenerator(st IdFlakeGeneratorSetting) *IdFlakeGenerator

You can configure Flake by the struct settings

type IdFlakeGeneratorSetting struct {
    StartTime       time.Time
    MachineIdGetter func() uint8
}

• StartTime is the time since which the Flake time is defined as elapsed time. If StartTime is 0, the start time of the flake generator is set to 2022/06/23T00:00:00Z
• MachineIdGetter will return the unique ID of the Flake Generator instance

In order to get a new unique ID, you just have to call the method NextID

func (gen *IdFlakeGenerator) NextId() (uint64, error)

NextId can continue to generate IDs for about many thousands years with 48 bits allocated. But after that, the function with return errors