Pizza App Routes

index.js

const express = require('express');
const app = express();
const routes = {
  '/foo': (req, res) => res.send('This is a test.'),
};
Object.entries(routes).map(([route, func]) => app.use(route, func));
app.use('/', (req, res) => res.send(Object.keys(routes))); // default

// Export the Express app to the Functions Framework
exports.function = app;