how to use Content-Encoding:gzip

[jackieli123723]

how to use Content-Encoding:gzip such as

const serverFactory = require('spa-server');
const port = process.env.PORT || 7200
const server = serverFactory.create({
  path: './dist',
  port: port,
  fallback: '/index.html'
});

//gzip css js img ???
server.start();