Creating Maintainable APIs

This book explains the importance of having straightforward and maintainable APIs in order for services to be usable and maintainable. Although, the focus is on services, this book also emphasizes how the core principles apply even to bare classes. 
The overall context of this book is to classify the topics into 4 main areas: classes and interfaces, HTTP REST APIs, messaging APIs, and message payloads (XML, JSON and JSON API as well as Apache Avro).
Here is what you'll learn:What are Object-Oriented design constructs and their APIs
How to create and manage the HTTP REST APIs
How to create and manage maintainable messaging APIs, including the use of Apache Kafka ad a principle messaging hub
How to handle message payloads via JSON mostly
And more