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)

Play Form – Data Model

The first and foremost point we need to understand is how we design our Model or Data Model in Play Framework Scala-based applications. This may be a bit different for Play Framework Java-based applications.

In Play Framework Scala-based applications, we use a concept called Scala Case classes to design our Data Models, because they are very handy and provide a lot of free benefits. For instance, we don't need to write getters at all. Scala provides them for free automatically.

You can refer to the Scala Case Classes section in Chapter 2, Functional Scala, , for more information on the benefits of Scala Case Classes.

Play Framework Form API

Play Framework has a rich Form API to support Forms...