Envelope/Backend/Util/Strings.go

package Util

import (
	"math/rand"
)

var (
	letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
)

func RandomString(n int) string {
	var (
		b []rune
		i int
	)
	b = make([]rune, n)
	for i = range b {
		b[i] = letterRunes[rand.Intn(len(letterRunes))]
	}
	return string(b)
}