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)

Lagom Hello Reactive System

In this section, we will develop and explore our first Lagom Framework microservice, that is, the Hello Reactive System. Even though it is a simple example, we will explore most of the required concepts in detail so that it is easy to develop our actual WF Reactive System in the coming section.

Getting Hello Service code

Fortunately, we don't need to create Lagom services from scratch. Like Play Framework, Lagom Framework also has some built-in examples. We can use them as the base to develop our services.

Perform the following steps to get the base project:

  1. Access Tech Hub Project Starter using the following URL: