uuidvii

UUIDv7 in Go

Usage

import (
    "fmt"

    "github.com/enzzc/uuidvii"
)

func main() {
    uuidSource := uuidvii.NewUUIDSource()
    fmt.Println(uuidSource.New().Hex())
}

Output:

176f1466-2d3f-70ba-8455-ef4a309ce2a8

Features

• Tend to be RFC4122-compliant
• Use cryptographically secure random numbers with AES, which is efficient (hardware-accelerated on x86_64 and modern AArch64 CPUs.)
• Time-ordered and continually increasing even when wall-clock changes
• Zero-dependency
• Tested on x86_64 and Arm64 (AArch64).

Performance

Here is what I get ("Performance" mode enabled, AES-NI supported):

goos: linux
goarch: amd64
pkg: github.com/enzzc/uuidvii
cpu: 12th Gen Intel(R) Core(TM) i7-1255U
BenchmarkGenUUID7-12         	16237479	        77.12 ns/op
BenchmarkGenUUID7AsHex-12    	10543224	       111.8 ns/op
PASS
ok  	github.com/enzzc/uuidvii	3.215s