I appreciated the explanations of C4 diagrams and ADR in the opening chapters. The architectural discussions in this book are explained using these techniques.
It covers topics such as API architecture patterns, testing, operations, and security.
Since it's almost impossible to avoid interacting with APIs on the web, reading this book is definitely worthwhile.
The term "mastering" in the title gives the impression of being close to "complete understanding."
However, it is more of an overview rather than a detailed explanation, so for individual themes, it is necessary to refer to other books and materials to supplement the information.
