add count feature inside populate field of content-api

packages/core/utils/lib/convert-query-params.js

@@ -6,6 +6,7 @@
  */
 
 const _ = require('lodash');
+const parseType = require('./parse-type');
 
 const QUERY_OPERATORS = ['_where', '_or', '_and'];
 
@@ -29,6 +30,10 @@ const validateOrder = order => {
   }
 };
 
+const convertCountQueryParams = countQuery => {
+  return parseType({ type: 'boolean', value: countQuery });
+};
+
 /**
  * Sort query parser
  * @param {string} sortQuery - ex: id:asc,price:desc
@@ -161,7 +166,7 @@ const convertNestedPopulate = subPopulate => {
   }
 
   // TODO: We will need to consider a way to add limitation / pagination
-  const { sort, filters, fields, populate } = subPopulate;
+  const { sort, filters, fields, populate, count } = subPopulate;
 
   const query = {};
 
@@ -181,6 +186,10 @@ const convertNestedPopulate = subPopulate => {
     query.populate = convertPopulateQueryParams(populate);
   }
 
+  if (count) {
+    query.count = convertCountQueryParams(count);
+  }
+
   return query;
 };