Apollo HOF to conditionally resolve with an empty list

condResolveEmptyList.js

/**
 * Curried higher-order function taking a predicate and an actual resolver function. In case the
 * predicate returns true, an empty list is returned, otherwise the result of the actual resolver function.
 *
 * Both the predicate and the resolver function will get the all arguments as a standard resolver function.
 */
const condResolveEmptyList = predicate => resolver => (
  data,
  args,
  context,
  info
) => {
  if (predicate(data, args, context, info)) return [];
  return resolver(data, args, context, info);
};

module.exports = {
  condResolveEmptyList,
};