const storage = require('../storage'); function validateID(route_id) { return route_id.match(/^[0-9a-fA-F]{10}$/) !== null; } module.exports = async (req, res) => { const id = req.params.id; if (!validateID(id)) { return res.sendStatus(404); } try { await storage.exists(id); res.sendStatus(200); } catch (e) { res.sendStatus(404); } };