text: let Parser = require('rss-parser');
  let parser = new Parser({
      customFields: {
        item: ['media:thumbnail'],
      }
    });
  
  module.exports = (app) => {
      app.get('/rss',async (req, res) => { 
           let feed= await parser.parseURL('https://medicalxpress.com/rss-feed/');
           res.send(feed.items);
       });
  }