golang/service/config.go (12 lines of code) (raw):
package service
import (
"math/rand"
)
const numBytes = "1234567890"
func randStringBytes(n int) string {
b := make([]byte, n)
for i := range b {
b[i] = numBytes[rand.Intn(len(numBytes))]
}
return string(b)
}