crawling and saving to mongo

crawler/.env

@@ -1,4 +1,4 @@
 MONGO_URL='mongodb://localhost:27017/kivi'
 OLX_FROM_PAGE=8
 OLX_TO_PAGE=8
-OLX_MAX_RESULTS=1000
+OLX_MAX_RESULTS=3

crawler/crawl.js

@@ -24,25 +24,29 @@ let savers = [
   new MongoSaver(process.env.MONGO_URL)
 ];
 
-let done = 0;
-for (let crawler of crawlers) {
+async function crawlAll() {
+  let crawlersAndSaversDone = 0;
+
+  for (let crawler of crawlers) {
     try {
-    crawler.crawl().then((results) => {
+      let results = await crawler.crawl()
       for (let saver of savers) {
         try {
-          saver.open();
-          saver.save(results);
+          await saver.connect();
+          await saver.save(results);
         } catch (e) {
           console.log("Error saving. Trying next saver! ", e);
-
+          crawlersAndSaversDone += 1;
         }
       }
-    });
     } catch (e) {
       console.log("Error crawling. Trying next crawler! ", e);
     }
+  }
+
+  for (let saver of savers) {
+    saver.close();
+  }
 }
 
-for (let saver of savers) {
-  saver.close();
-}
+crawlAll();

crawler/savers/mongo.js

@@ -15,7 +15,7 @@ export default class MongoSaver {
             console.log('Unable to connect to the mongoDB server. Error:', err);
             reject(err);
           } else {
-            console.log('Connection established to', url);
+            console.log('Connection established to', this.url);
             saver.db = db;
             saver.collection = db.collection('results');
             saver.ready = true;

crawler/specific/olx.js

@@ -122,7 +122,7 @@ export default class OlxCrawler {
   async indexPages(start, end, maxResults = 1000) {
     let results = {};
     for (let i = start; i <= end; i++) {
-      let result = await this.indexPage(i, numberOfResults);
+      let result = await this.indexPage(i, maxResults);
       Object.assign(results, result)
       await this.sleep(5000);
     }