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)

Installing Lightbend ConductR

In this section, we will set up our local Lightbend ConductR environment to test our Reactive Microservices. We will discuss most of the setup steps for the Ubuntu Linux environment and check for similar options for other OS environments, such as Windows and Mac.


The following are the prerequisites for installing the Conduct CLI tool:

  • Oracle Java Runtime Environment 8 (JRE 8)
  • Docker
  • Python 3
  • Pip 3

Before going through the ConductR setup, ensure that you set up this software first. We need to set up of Java JRE8.

We need a local Docker environment to install, deploy, and test our WF Reactive System with Lightbend's ContctR. Refer to the official Docker documentation to set...