TrackmaniaTournamentTracker/backend/routes/upload-replay.js

const multer = require('multer');

const storage = multer.diskStorage({
destination: (req, file, cb) => {
    cb(null, 'uploads/');
},
filename: (req, file, cb) => {
    cb(null, Date.now() + '-' + file.originalname);
}
});

// Create the multer instance
const upload = multer({ storage: storage});

module.exports = upload;