Vivek Mishra & Héctor Veiga Ortiz 
Akka Cookbook [EPUB ebook] 
Recipes for concurrent, fast, and reactive applications

Akka is an open source toolkit that simplifies the construction of distributed and concurrent applications on the JVM. This book will teach you how to develop reactive applications in Scala using the Akka framework.
This book will show you how to build concurrent, scalable, and reactive applications in Akka. You will see how to create high performance applications, extend applications, build microservices with Lagom, and more.
We will explore Akka’s actor model and show you how to incorporate concurrency into your applications. The book puts a special emphasis on performance improvement and how to make an application available for users. We also make a special mention of message routing and construction.
By the end of this book, you will be able to create a high-performing Scala application using the Akka framework.