change some interfaces

pkg/op/keys.go

@@ -10,6 +10,12 @@ type KeyProvider interface {
 	Storage() Storage
 }
 
+func keysHandler(k KeyProvider) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		Keys(w, r, k)
+	}
+}
+
 func Keys(w http.ResponseWriter, r *http.Request, k KeyProvider) {
 	keySet, err := k.Storage().GetKeySet(r.Context())
 	if err != nil {