Chapter 1, Diving into Akka, covers the basic concepts of Akka: actors, actor systems, mailboxes, and switching actor behaviors.
Chapter 2, Supervision and Monitoring, covers the actor life cycle, actor hierarchy, supervision, and monitoring.
Chapter 3, Routing Messages, covers the different types of group and pool router and how the Akka dispatcher works.
Chapter 4, Using Futures and Agents, covers how futures work and how well they integrate with the Akka toolkit. It also covers Akka agents.
Chapter 5, Scheduling Actors and Other Utilities, explains how the Akka scheduler works and contains various useful recipes about packaging, configuring, and running your Akka application.
Chapter 6, Akka Persistence, explains how to persist the state of an stateful actor to a variety of technologies, such as Apache Cassandra and Redis. It also covers different recovering strategies.
Chapter 7, Remoting and Akka Clustering, covers how to use Akka beyond a single JVM, either by using a well-known remote address or by joining a decentralized peer-to-peer-based cluster membership service.
Chapter 8, Akka Streams, covers the Akka Streams framework and how to integrate it with Akka and with third-party technologies.
Chapter 9, Akka HTTP, explains how to use Akka HTTP both on the client and server side. Also, it shows how to choose the API level depending on the use case.
Chapter 10, Understanding Various Akka Patterns, covers how to use different common programming patterns using Akka.
Chapter 11, Microservices with Lagom, introduces Lagom, the microservices framework from Lightbend. It provides information about conventions and how to create, configure, connect, and run microservices with Lagom.
