This project is a example of the principles mentionned by @Lilobase in his talk "CQRS, Fonctionnel, Event Sourcing & Domain Driven Design".
This is only the "domain" part of a project, without any depedency to any framework. Theses details of implementation could be added at the end. Even the choice of executing the business logic (frontend ? Backend ?) can be postponed thanks to JavaScript.
yarn
yarn test
This is a fictive Doctolib-like app. Doctors add free slots, and authenticated users can book them.
A simple Command Bus dispatch the incoming command events to their handler. Each handler can return a list of domain events to trigger side effects, like Email notifications.
A few additionnal middlewares easily add some common features :
- authentication
- transaction boundary
- logger