This is a follow-up of #8. For express, a proper logging library should be used. Here are some suggestions to pick from: * [morgan](https://www.npmjs.com/package/morgan) * [winston](https://www.npmjs.com/package/winston) * [bunyan](https://www.npmjs.com/package/bunyan) * [debug](https://www.npmjs.com/package/debug) (rather for node scripts) * [loglevel](https://www.npmjs.com/package/loglevel) (rather for node scripts or frontend)
