Work to change database

[Fernando Bittencourt]

I haven't analyzed the code in depth yet. But if you want to change the database, is the database isolated which allows for a simpler change? Or is the code tightly integrated and would need to rewrite a lot to get it?

For what I intend to do, using MongoDB would be ideal

[Ricardo Arturo Cabral Mejía]

@frbitten interface with the database is in the event-repository.ts file so fairly isolated