fix unable to find metricsPath

main.go

@@ -100,7 +100,7 @@ func init() {
 func loggingMiddleware(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		start := time.Now()
-
+		metricsPath := os.Getenv("METRICS_PATH")
 		if r.URL.Path != metricsPath {
 			helper.LogInfo(fmt.Sprintf("INFO: Started %s %s", r.Method, r.URL.Path))
 		}