const server = require("./api/server"); server.get("/", (req, res) => { res.json({ message: `API server for Dijkstra. :)`, documentation: `Check out: https://github.com/ruihildt/dijkstra` }); }); const PORT = process.env.PORT || 4000; server.listen(PORT, () => { console.log(`Listening on port ${PORT}...`); });