const path = require(`path`); module.exports = (expressApp, { graphqlEndpoint }) => { const bundleUrlHandler = path.posix.join(graphqlEndpoint, `app.js`); expressApp.get(bundleUrlHandler, (req, res) => { res.set(`Cache-Control`, `public, max-age=31557600`); res.sendFile(path.join(__dirname, `app.js`)); }); expressApp.get(graphqlEndpoint, (req, res) => { res.sendFile(path.join(__dirname, `index.html`)); }); };