Example projects

The following example projects can be downloaded. They contain build files and have instructions of how to run.

Quickstart

The Quickstart guide walks you through example code that introduces how to define actor systems, actors, and messages as well as how to use the test module and logging.

FSM

FSM example project FSM example project

This project contains a Dining Hakkers sample illustrating how to model a Finite State Machine (FSM) with actors.

Cluster

Cluster example project Cluster example project

This project contains samples illustrating different Cluster features, such as subscribing to cluster membership events, and sending messages to actors running on nodes in the cluster with Cluster aware routers.

It also includes Multi JVM Testing with the sbt-multi-jvm plugin.

Distributed Data

Distributed Data example project Distributed Data example project

This project contains several samples illustrating how to use Distributed Data.

Cluster Sharding

Sharding example project Sharding example project

This project contains a KillrWeather sample illustrating how to use Cluster Sharding.

Persistence

Persistence example project Persistence example project

This project contains a Shopping Cart sample illustrating how to use Akka Persistence.

CQRS

The Microservices with Akka tutorial contains a Shopping Cart sample illustrating how to use Event Sourcing and Projections together. The events are tagged to be consumed by even processors to build other representations from the events, or publish the events to other services.

Replicated Event Sourcing

Multi-DC Persistence example project Multi-DC Persistence example project

Illustrates how to use Replicated Event Sourcing that supports active-active persistent entities across data centers.

Cluster with Kubernetes

Cluster with Kubernetes example project

This sample illustrates how to form an Akka Cluster with Akka Bootstrap when running in Kubernetes.

Distributed workers

Distributed workers example project

This project demonstrates the work pulling pattern using Akka Cluster.

Kafka to Cluster Sharding

Kafka to Cluster Sharding example project

This project demonstrates how to use the External Shard Allocation strategy to co-locate the consumption of Kafka partitions with the shard that processes the messages.