Book Image

Learn Scala Programming

By : Slava Schmidt
Book Image

Learn Scala Programming

By: Slava Schmidt

Overview of this book

The second version of Scala has undergone multiple changes to support features and library implementations. Scala 2.13, with its main focus on modularizing the standard library and simplifying collections, brings with it a host of updates. Learn Scala Programming addresses both technical and architectural changes to the redesigned standard library and collections, along with covering in-depth type systems and first-level support for functions. You will discover how to leverage implicits as a primary mechanism for building type classes and look at different ways to test Scala code. You will also learn about abstract building blocks used in functional programming, giving you sufficient understanding to pick and use any existing functional programming library out there. In the concluding chapters, you will explore reactive programming by covering the Akka framework and reactive streams. By the end of this book, you will have built microservices and learned to implement them with the Scala and Lagom framework.
Table of Contents (19 chapters)

Project 2 - Building Microservices with Lagom

The final part of this book goes into the details of the Lagom framework by discussing its philosophy, the way Lagom applications are structured, and available APIs and how to use them.

In this chapter, we will build, once again, our bakery project, this time structured as a number of microservices.

After reading this chapter, you will be able to do the following:

  • Understand the advantages of using Lagom
  • Set up Lagom and use it to create projects
  • Structure an application as required by the framework
  • Efficiently use provided APIs
  • Unit test Lagom services