Scrape job setuped on demand

apartments.js

 var request = require('request').defaults({ encoding: null });
 module.exports.apartment = function($) {
-
-
     var result = {
       // images: request.get($('.aspectRatioImage').find('img')[0].attribs.src, function (error, response, body) {
       //   if (!error && response.statusCode == 200) {

app.js

-var config = require('config');
+const config = require('config');
 const express = require('express');
 const cors = require('cors');
 const MongoClient = require('mongodb').MongoClient;
 const ObjectID = require('mongodb').ObjectID;
 
+var apartments = require('./apartments.js');
+var houses = require('./houses.js');
+
+// jobs
+var mongoUrl = config.get("mongo");
+var agendaDb = config.get("agenda");
+const Agenda = require('agenda').Agenda;
+const agenda = new Agenda({ db: { address: agendaDb } });
+agenda.define('scrape', async function (job, done) {
+  const { _id } = job.attrs.data;
+  try {
+    const dbo = client.db(database);
+    let collection = dbo.collection('scrapes');
+    let scrape = await collection.findOne({ _id: _id });
+
+    // let response = await axios(scrape.sourceUrl);
+    // const html = response.data;
+    // const $ = cheerio.load(html);
+
+    // var data = apartments.apartment($);
+    
+    // createListing(client, data);
+
+    await collection.updateOne({ _id: _id }, { $set: { status: "done" } });
+    return done();
+  } catch (err) {
+    console.log(err);
+  }
+});
+(async function () {
+  await agenda.start();
+})();
+
 // express application
 const app = express();
 
   });
 });
 
-// const cron = require('node-cron');
 
-// var apartments = require('./apartments.js');
-// var houses = require('./houses.js');
+
 
 // app.set('json spaces', 2);
 
     let collection = dbo.collection('scrapes');
 
     var o_id = new ObjectID(id);
-    let data = await collection.findOne({ _id: o_id});
+    let data = await collection.findOne({ _id: o_id });
     return res.json(data);
   } catch (err) {
     console.log(err);
     let collection = dbo.collection('scrapes');
 
     var o_id = new ObjectID(id);
-    var newvalues = { $set: {status: "pending"} };
-    let data = await collection.updateOne({ _id: o_id}, newvalues);
+    var newvalues = { $set: { status: "pending" } };
+    await collection.updateOne({ _id: o_id }, newvalues);
+    agenda.now('scrape', { _id: o_id });
     return res.status(204).json();
   } catch (err) {
     console.log(err);
 });
 
 const port = 3333;
-// var task = cron.schedule('* * * * *', function() {
-//   console.log(`Runned job...`)
-// });
-//   var options = {
-//     host: 'http://localhost',
-//     port:port,
-//     path: '/apartments/https://www.apartments.com/essex-on-the-park-chicago-il/begd58b/',
-//     method: 'GET'
-//   };
-
-
-// task.start()
-
-// task.stop();
-
 app.listen(port, () => {
   console.log(`Example app listening at http://localhost:${port}`)
 });
-process.on('exit', function () {
-  client.close();
-});
+
+// Handles graceful stopping of jobs
+function graceful() {
+  agenda.stop(function () {
+    client.close(function (e) {
+      if (e) logger.error(e);
+      process.exit(0);
+    });
+  });
+}
+
+process.on('SIGTERM', graceful);
+process.on('SIGINT', graceful);

config/default.json

 {
   "mongo":"mongodb://localhost:27017/",
-  "database":"scraper"
+  "database":"scraper",
+  "agenda":"mongodb://localhost:27017/scraper-agenda"
 }

package-lock.json

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package.json

   "author": "",
   "license": "ISC",
   "dependencies": {
+    "agenda": "^4.1.3",
     "axios": "^0.21.1",
     "body-parser": "^1.19.0",
     "cheerio": "^1.0.0-rc.10",