Akka in Action

Chapter 10. Message channels

In this chapter

• Direct messaging with point-to-point channels
• Flexible messaging with publish-subscribe channels
• Publishing and subscribing to the EventBus
• Reading undelivered messages using the dead-letter channel
• Achieving a higher level of guaranteed delivery with the guaranteed-delivery channel
• Guaranteeing delivery with the ReliableProxy

In this chapter we’ll take a closer look at the message channels that can be used to send messages from one actor to another. We’ll start with the two types of channels: point-to-point and publish-subscribe. Point-to-point is the channel we’ve used in all our examples until now, but sometimes we need a more flexible method to send messages to receivers. In the publish-subscribe ...