Thank you, Dinesh.
This book takes the e-commerce app as reference project. This project demonstrates end to end development (UI -> backend -> DB).
This book mainly covers API development using REST, Reactive APIs, gRPC, and GraphQL. However, keeping overall product development in perspective, it also teaches about the other related areas, like security, logging, tracing,
testing automation, and app deployment in Kubernetes. Even, it has a chapter that teaches how to build a react-based frontend.
Hope this helps.
Happy Learning.
Cheers!