Node.js 8 the Right Way

Providing an Async Handler Function to Express

Open your lib/bundle.js and add the following inside the module.exports function, after the bundle-creation API you added previously.

web-services/b4/lib/bundle.js

/**
 * Retrieve a given bundle.
 * curl http://<host>:<port>/api/bundle/<id>
 */
app.get('/api/bundle/:id', async (req, res) => {
  const options = {
    url: `${url}/${req.params.id}`,
    json: true,
  };

  try {
    const esResBody = await rp(options);
    res.status(200).json(esResBody);
  } catch (esResErr) {
    res.status(esResErr.statusCode || 502).json(esResErr.error);
  }
});

This code block sets up a handler for the /bundle/:id route, which will allow us to retrieve a book bundle by its ID. Note ...