Book Image

Akka Cookbook

By : Vivek Mishra, Héctor Veiga Ortiz
Book Image

Akka Cookbook

By: Vivek Mishra, Héctor Veiga Ortiz

Overview of this book

Akka is an open source toolkit that simplifies the construction of distributed and concurrent applications on the JVM. This book will teach you how to develop reactive applications in Scala using the Akka framework. This book will show you how to build concurrent, scalable, and reactive applications in Akka. You will see how to create high performance applications, extend applications, build microservices with Lagom, and more. We will explore Akka's actor model and show you how to incorporate concurrency into your applications. The book puts a special emphasis on performance improvement and how to make an application available for users. We also make a special mention of message routing and construction. By the end of this book, you will be able to create a high-performing Scala application using the Akka framework.
Table of Contents (18 chapters)
Title Page
About the Authors
About the Reviewer
Customer Feedback

Writing routing DSL for HTTP servers

Akka HTTP provides an elegant DSL for defining the layout of your REST API. This DSL allows you to compose different directives to route and handle your incoming requests. Directives are functions that either let the HTTP request through or reject it depending on its nature. There are over 150 distinct directives to handle the different aspects of the HTTP protocol and parameters of an HTTP request or response. For instance, there are method directives (post, get, put, delete, and so on) or path directives to match a certain path in the URI of the request.


Check all the predefined directives ordered alphabetically in

In this recipe, we see how to easily write a CRUD (Create, Read, Update, Delete) REST API using memory as our storage solution. We will do it using an agnostic approach, where any type of data could be used. Also, we will see how these routes...