for data storage used mongo, integration tests included
Install docker https://www.docker.com/
To run server api:
docker-compose up
To run tests:
docker-compose -f docker-compose.test.yml up --abort-on-container-exit
To emulate authentication application uses bearer token, check the file auth.js,
so users with Bearer X treated as logged in with id=1,
that means owner could be only one (with token). Also for example look tests how token assigned:
.set('Authorization', 'Bearer X').
For validation/sanitizing used library express-validator, for example check the file ShoppingListController.js