Is there a method to generate a UUID with go language

Question

I have code that looks like this:

u := make([]byte, 16)
_, err := rand.Read(u)
if err != nil {
    return
}

u[8] = (u[8] | 0x80) & 0xBF // what does thi         


        

Answer 1

On Linux, you can read from /proc/sys/kernel/random/uuid:

package main

import "io/ioutil"
import "fmt"

func main() {
    u, _ := ioutil.ReadFile("/proc/sys/kernel/random/uuid")
    fmt.Println(string(u))
}

No external dependencies!

$ go run uuid.go 
3ee995e3-0c96-4e30-ac1e-f7f04fd03e44