add debugging log switch for crawler process

app/crawler/specificCrawlers/olx.js

@@ -13,7 +13,10 @@ const {
   CRAWLER_AD_TYPE
 } = require("../../common/enums");
 
-const { DEFAULT_TIMEZONE } = require("../../config/appConfig");
+const {
+  DEFAULT_TIMEZONE,
+  PRINT_CRAWLER_DEBUG
+} = require("../../config/appConfig");
 
 const OLX_ENUMS = {
   OLX_AD_TYPE: {
@@ -156,6 +159,10 @@ class OlxCrawler {
   }
 
   async indexSinglePage(url, maxResultsPerPage) {
+    if (PRINT_CRAWLER_DEBUG) {
+      console.log("[OLX] Index page : ", url);
+    }
+
     try {
       const res = await fetch(url);
       const body = await res.text();