Olx sraper scrape twice.

app/crawler/specificCrawlers/olx.js

@@ -206,6 +206,9 @@ class OlxCrawler {
 
   async scrapeAd(url) {
     console.log("Scraping : ", url);
+    let hasParseErrors = false;
+    let numberOfParseErrors = 0;
+    do {
       try {
         const adPageSource = await fetch(url);
         const body = await adPageSource.text();
@@ -273,7 +276,9 @@ class OlxCrawler {
           throw { message: "Can't find normal price" };
         }
         if (urgentPriceValue && urgentPriceValue.length > 0) {
-        const priceValues = urgentPriceValue.replace("Cijena", "").split("KM");
+          const priceValues = urgentPriceValue
+            .replace("Cijena", "")
+            .split("KM");
           //priceValues will contain values like ["100000", "90000", ...], second element is urgent price
           if (priceValues.length > 0) {
             if (priceValues[0].trim().indexOf("Hitno") != -1) {
@@ -443,10 +448,16 @@ class OlxCrawler {
               gardenSize = fieldValue;
               break;
             case "broj soba":
-            numberOfRooms = this.parseNumberOfRooms(fieldValue, parsedCategory);
+              numberOfRooms = this.parseNumberOfRooms(
+                fieldValue,
+                parsedCategory
+              );
               break;
             case "broj prostorija":
-            numberOfRooms = this.parseNumberOfRooms(fieldValue, parsedCategory);
+              numberOfRooms = this.parseNumberOfRooms(
+                fieldValue,
+                parsedCategory
+              );
               break;
             case "broj spratova":
               numberOfFloors = this.parseNumberOfFloors(
@@ -573,7 +584,10 @@ class OlxCrawler {
               break;
           }
 
-        if (++fieldIndex === OLX_ENUMS.MAX_DETAIL_FIELDS || fieldTitle === "") {
+          if (
+            ++fieldIndex === OLX_ENUMS.MAX_DETAIL_FIELDS ||
+            fieldTitle === ""
+          ) {
             break;
           }
         } while (true);
@@ -673,8 +687,11 @@ class OlxCrawler {
 
         return data;
       } catch (e) {
+        hasParseErrors = true;
+        numberOfParseErrors++;
         console.error("Exception caught: " + e.message, "\r\nURL:", url);
       }
+    } while (hasParseErrors && numberOfParseErrors <= 1);
     return null;
   }