text: const express = require('express')
  
  const PORT = 8080;
  const HOST = '0.0.0.0';
  
  const app = express();
  
  app.use(express.json());
  app.use(express.urlencoded({extended: true}));
  
  app.get('/', (req, res) => {
      res.setHeader('Cache-Control', 'no-cache')
      res.send('Hello world\n');
  });
  
  app.post('/search', (req, res) => {
      res.setHeader('Cache-Control', 'public, max-age=60')
      res.json(req.body);
  });
  
  app.post('/search/no/cache', (req, res) => {
      res.setHeader('Cache-Control', 'no-cache')
      res.json(req.body);
  });
  
  app.listen(PORT, HOST);
  console.log(`Running on http://${HOST}:${PORT}`);
  