start crawler loop when server is started

index.js

@@ -6,8 +6,9 @@ const bodyParser = require("body-parser");
 const layout = require("express-layout");
 const compression = require("compression");
 
-const { APP_PORT } = require("./app/config/appConfig");
+const { APP_PORT, CRAWLER_INTERVAL } = require("./app/config/appConfig");
 const routes = require("./app/routes");
+const { crawlAll } = require("./app/crawler/crawl");
 
 const app = express();
 
@@ -26,3 +27,14 @@ app.use("/assets", express.static("./app/public"));
 app.listen(APP_PORT, () =>
   console.log(`Example app listening on port ${APP_PORT}!`)
 );
+
+let crawlerRunning = false;
+const crawl = () => {
+  if (!crawlerRunning) {
+    crawlerRunning = true;
+    crawlAll().then(newRealEstates => {
+      crawlerRunning = false;
+    });
+  }
+};
+setInterval(crawl, CRAWLER_INTERVAL * 1000);