JSFiddle - React, Tailwind, and code Playground

JavaScript

app.get('/blog/:id?', (req, res) => {
  const id = req.params.id;
  if (id === undefined) {
    res.status(503);
    res.send('This page is empty!');
  } else {
  	posts = posts[id] || {};
    res.render('posts', posts);
  }
});