package metrics

import (
	"net/http"

	"github.com/gorilla/mux"
)

// currentRoute returns the gorilla/mux path template for the request, if the
// request was matched by a mux router.
func currentRoute(r *http.Request) string {
	route := mux.CurrentRoute(r)
	if route == nil {
		return ""
	}
	if tmpl, err := route.GetPathTemplate(); err == nil {
		return tmpl
	}
	return ""
}