Book Image

Scala Reactive Programming

By : Rambabu Posa
Book Image

Scala Reactive Programming

By: Rambabu Posa

Overview of this book

Reactive programming is a scalable, fast way to build applications, and one that helps us write code that is concise, clear, and readable. It can be used for many purposes such as GUIs, robotics, music, and others, and is central to many concurrent systems. This book will be your guide to getting started with Reactive programming in Scala. You will begin with the fundamental concepts of Reactive programming and gradually move on to working with asynchronous data streams. You will then start building an application using Akka Actors and extend it using the Play framework. You will also learn about reactive stream specifications, event sourcing techniques, and different methods to integrate Akka Streams into the Play Framework. This book will also take you one step forward by showing you the advantages of the Lagom framework while working with reactive microservices. You will also learn to scale applications using multi-node clusters and test, secure, and deploy your microservices to the cloud. By the end of the book, you will have gained the knowledge to build robust and distributed systems with Scala and Akka.
Table of Contents (16 chapters)

Akka ActorSystem

In this section, we will discuss one of the important components or building blocks of the Akka Toolkit—the ActorSystem.

The ActorSystem is the key component of the Akka Toolkit and plays a very important role in any Akka Actor-based application/system.

What is the ActorSystem?

In the Akka Toolkit, the ActorSystem is the root of the Actors Hierarchy. It acts as a runtime environment for the Akka Actors and provides many features to help them perform their job.

In the Akka Toolkit, the ActorSystem is the entry point and manages all Actors that are created using it. The ActorSystem is placed at the root of the Actor Hierarchy. It acts as a root Actor for all Actors created, using that ActorSystem instance...