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Scala Reactive Programming

You're reading from   Scala Reactive Programming Build scalable, functional reactive microservices with Akka, Play, and Lagom

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Product type Paperback
Published in Feb 2018
Publisher Packt
ISBN-13 9781787288645
Length 552 pages
Edition 1st Edition
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Author (1):
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Rambabu Posa Rambabu Posa
Author Profile Icon Rambabu Posa
Rambabu Posa
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Table of Contents (16) Chapters Close

Preface 1. Getting Started with Reactive and Functional Programming FREE CHAPTER 2. Functional Scala 3. Asynchronous Programming with Scala 4. Building Reactive Applications with Akka 5. Adding Reactiveness with RxScala 6. Extending Applications with Play 7. Working with Reactive Streams 8. Integrating Akka Streams to Play Application 9. Reactive Microservices with Lagom 10. Testing Reactive Microservices 11. Managing Microservices in ConductR 12. Reactive Design Patterns and Best Practices 13. Scala Plugin for IntelliJ IDEA 14. Installing Robomongo 15. Other Books You May Enjoy

Akka Configuration

We can develop Akka applications without using any configuration because the Akka framework provides sensible default configuration values for each and every Akka component. If required, we can change configuration values to improve application performance, scalability, and more.

In this section, we will discuss some of the following important Akka framework configuration details:

  • Dispatcher
  • Executor
  • Logging

Akka framework uses the Typesafe Configuration library for this purpose. In the Akka framework, this configuration is read and used by the ActorSystem. By default, the ActorSystem uses all configuration details available in the application.conf file. If required, we can customize it.

Akka Configuration starts with akka, as depicted in the application.conf file:

akka{ 
} 

We can set a log level and default dispatcher for Actors, as shown:

akka{ 
  loglevel...
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