generate a random string

randomstring.go

package main

import (
	"crypto/rand"
	"fmt"
)

func main() {
	fmt.Printf("randstring = %s\n", rand_str(5)) // change "5" to be whatever length string you need

}

func rand_str(str_size int) string {
	alphanum := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
	var bytes = make([]byte, str_size)
	rand.Read(bytes)
	for i, b := range bytes {
		bytes[i] = alphanum[b%byte(len(alphanum))]
	}
	return string(bytes)
}