index.ts

import { createServer } from 'http';

import message from './message';

const server = createServer((req, res) => {
  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.write(message);
  res.end('\n');
});

server.once('listening', () => {
  const addressInfo = server.address() || 'unknown';
  const address = typeof addressInfo == 'string' ?
    addressInfo : `${addressInfo.address}:${addressInfo.port}`;

  console.log(`Server listening on ${address}`);
  console.log(message);
}).listen(0);

process.once('SIGTERM', () => {
  if (server.listening) {
    server.close();
  }
  process.exit(0);
});

process.once('beforeExit', () => console.log('exit'));

export default server;