Alexey Soshin - Hands-on Design Patterns with Kotlin: GoF, Reactive patterns, Concurrent patterns and more

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Alexey Soshin is a software architect with 13 years of experience of making software, mostly for JVM. He started exploring Kotlin even before Kotlin 1.0 was released, and since then, he has been a big enthusiast of the language. He speaks about Kotlin and reactive frameworks at various conferences and meetups and maintains a technical blog. He's also a contributor to Vert.x, a toolkit for building reactive applications on the Java Virtual Machine .

Ranga Rao Karanam is a programmer, trainer, and architect. He is the founder of in28Minuteshelping 200,000 learners reskill on Cloud native applications, microservices, evolutionary design, high-quality code, DevOps, BDD, TDD, and refactoring. He loves consulting for startups on the development of scalable component-based cloud-native applications and following modern development practices, such as BDD, continuous delivery, and DevOps.

Ranga likes to play cricket and tennis, and he is a regular hiker. His dream is to spend a year hiking in the Himalayas.

Ganesh Samarthyam is a co-founder of CodeOps Technologies, a software technology, consultancy, and training company based in Bangalore. He has 16 years of experience in the IT industry, and his latest book, Refactoring for Software Design Smells by Morgan Kaufmann/Elsevier, has been translated into Korean and Chinese. Ganesh loves exploring anything and everything about technology in his free time.

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Design patterns enable you as a developer to speed up the development process by providing tested, proven development paradigms. Reusing design patterns helps prevent complex issues that can cause major problems and improves your code base, promotes code reuse, and makes the architecture more robust.

The mission of this book is to ease the adoption of design patterns in Kotlin and provide good practices for programmers.

The book begins by showing you the practical aspects of smarter coding in Kotlin, explaining the basic Kotlin syntax and the impact of design patterns. Furthermore, the book provides an in-depth explanation of the classic design patterns, such as Creational, Structural, and Behavioral, before heading into functional programming. It then takes you through Reactive and Concurrent patterns, teaching you about Streams, Threads, and Coroutines to write better code. Toward the end, you will learn about the latest trends in architecture, exploring the design patterns for microservices, and discuss the considerations when choosing between different architectures, such as microservices and MVC.

By the end of the book, you will be able to efficiently address common problems faced while developing applications and be comfortable working on scalable and maintainable projects of any size.

This book is for developers who would like to master design patterns with Kotlin in order to build efficient and scalable applications. Basic Java or Kotlin programming knowledge is assumed.

, Getting Started with Kotlin, covers basic language concepts and syntax, such as types, functions, classes, and flow control structures.

, Working with Creational Patterns, explains what classical creational patterns are embedded into the language and how to implement those that aren't. It discusses Singleton and Factory, among others.

, Understanding Structural Patterns, focuses on how to extend the functionality of our objects and adapt to changes.