@@ -0,0 +1,192 @@
+package it.near.sdk.recipes.validation;%0A%0Aimport it.near.sdk.recipes.models.Recipe;%0A%0Aabstract class Validator %7B%0A%0A    abstract boolean validate(Recipe recipe);%0A%0A    public Validator() %7B%0A    %7D%0A%7D%0A

add validator interface