Issue #SB-3715 fix: code refactoring

src/app.js

@@ -31,6 +31,7 @@ const learnerServiceLocalBaseUrl = process.env.sunbird_learner_service_local_bas
   ? process.env.sunbird_learner_service_local_base_url
   : 'http://learner-service:9000'
 
+
 const searchServiceBaseUrl = process.env.sunbird_search_service_api_base_url || 'https://qa.ekstep.in/api/search'
 const dialServiceBaseUrl = process.env.sunbird_dial_service_api_base_url || 'https://qa.ekstep.in/api'
 const producerId = process.env.sunbird_environment + '.' + process.env.sunbird_instance + '.content-service'

src/middlewares/filter.middleware.js

@@ -7,7 +7,7 @@ var filename = path.basename(__filename)
 
 function addMetaFilters (req, res, next) {
   // If the request body has filter by metaFilter data, continue with the same filter, do not alter the values
-  // else call the getMetaSearchJSON() function to generate the search string for the meta filters
+  // else call the fetchFilterQuery() function to generate the search string for the meta filters
   if (req && req.body && req.body.request && req.body.request.filters) {
     if (req.body.request.filters.channel === undefined) {
       fetchFilterQuery(req, 'channel')