Learning Akka (Video 15)

This video tutorial explains how to implement a persistent actor in a system. It covers defining operations, commands, and events, and how to handle recovery and command reception. The tutorial also demonstrates testing the app to ensure it starts with the previous state, highlighting the persistence feature. The video concludes with a preview of the next tutorial, which will focus on snapshots and recovery.

What are the two types of messages that a persistent actor handles?

What is the purpose of the persistence ID in a persistent actor?

Describe the two states of a persistent actor.

How does a persistent actor update its state during recovery?

What happens when a persistent actor receives a command?