title: Sending multiple responses with the same response object in Express.js
body: <p>I have a long running process which needs to send data back at multiple stages. Is there some way to send back multiple responses with <a href="http://expressjs.com/" rel="noreferrer">express.js</a></p>
  
  <pre><code>res.send(200, 'hello')
  res.send(200, 'world')
  res.end() 
  </code></pre>
  
  <p>but when I run <code>curl -X POST localhost:3001/helloworld</code> all I get is <code>hello</code></p>
  
  <p>How can I send multiple responses or is this not possible to do with express?</p>