The goal for this application is keep an eye of every beer debts (or every debts in general) you owe or someone owes you. This project serves an API REST HATEOAS powered by Node, ExpressJS and MongoDB. TravisCI is in charge for the Continuous Integration and deploy the app to Heroku after a successful build.
The project is in development so changes are coming often. If you want try the app, you can test some requests in: https://keeping-tabs-on-taps-api.herokuapp.com/ (first request uses to last a little bit due to the free Heroku's dyno).
Keeping tabs on taps is MIT licensed. You can do all what you want with its code.