add keepawake function for heroku server

bin/server.js

@@ -2,6 +2,11 @@ const app = require('../app');
 const db = require('../model/db');
 const createFolderIsExist = require('../helpers/create-directory');
 const PORT = process.env.PORT || 3000;
+const BASE_URL = process.env.BASE_URL;
+
+setInterval(() => {
+	http.get(`${BASE_URL}`);
+}, 25 * 60 * 1000);
 
 db.then(() => {
 	app.listen(PORT, async () => {