func redisLinksLookup(client *redis.Client, req *http.Request, redisPath, prefix string) []string { f := client.Keys(redisPath) urls := []string{} for _, v := range f.Val() { url := fmt.Sprintf("http://%s%s/%s", req.Host, prefix, strings.Replace(v, ":", "/", -1)) urls = append(urls, url) } return urls }