Entry point for Node/Express app for testing

index.js

import express from 'express';

const port = process.env.PORT || 4000;
const app = express();

// This is where the magic happens.
// We write the case needed for our test to pass
app.get('/', (req, res) => {
  res.status(200).json({
    message: 'Hello Books'
  });
});

app.listen(port, () => {
  debug(`Server started on port ${port}`);
});

export default app;