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

Creating a minimal HTTP server using Akka HTTP

In this recipe, we will see how to create a minimal HTTP server using routing DSL. We will also make use of the HttpApp trait, which provides a precooked server ready to be run.

Getting ready

To step through this recipe, we need to import the Hello-Akka project; all the other prerequisites are the same as before. We need to get the required dependencies for http this time.

How to do it...

For this recipe, perform the following steps:

  1. Get the required dependencies. 
  2. Edit the build.sbt file and add the Akka HTTP dependency as follows:
        libraryDependencies += "com.typesafe.akka" % 
          "akka-http_2.11" % "10.0.5"



  1. Now create a file named MinimalHttpServer.scala. Define your server and a small object to run it:
        package com.packt.chapter9

        import akka.http.scaladsl.model.{ContentTypes, HttpEntity}
        import akka.http.scaladsl.server.HttpApp
        import akka.http.scaladsl.server.Directives._
        import akka.http.scaladsl...