Making Fredy an ESM project (#70)

Making Fredy an ESM project

lib/services/queryStringMutator.js

@@ -1,21 +1,9 @@
-const queryString = require('query-string');
-
-/**
- * for Fredy, it is important to sort search results by date, starting with the latest listing. if it is not sorted, we
- * might never actually find the newest results, no matter how many pages we crawl.
- * It has been written in the documentation, but obviously nobody reads docu theses days which is why it's been done
- * automagically now.
- *
- * @param _url actual provider url containing the searchParams
- * @param sortByDateParam param(s) indicating the correct sort order
- * @returns {`${string}?${string}`} correctly formatted url
- */
-module.exports = (_url, sortByDateParam) => {
+import queryString from 'query-string';
+export default (_url, sortByDateParam) => {
   //if no mutation is necessary, just return the original url
   if (sortByDateParam == null) {
     return _url;
   }
-
   const original = queryString.parseUrl(_url);
   const mutate = queryString.parse(sortByDateParam);
   return `${original.url}?${queryString.stringify({ ...original.query, ...mutate })}`;