package webrtc import ( "math/rand" "time" ) func randSeq(n int) string { r := rand.New(rand.NewSource(time.Now().UnixNano())) letters := []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ") b := make([]rune, n) for i := range b { b[i] = letters[r.Intn(len(letters))] } return string(b) }