MongoDb database design

Hi i have tried couple of models with NoSQL database design. But nothing seems to work.

I need a MongoDB script that you can build to be ready for ecommerce website like amazon. I know amazon is big but i don’t need full fledged database design.
I need like scalable design which could cover all the basic aspects of shopping, user registration. etc.

tech stack: MongoDb ofcourse, Spring data mongoDB.