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Sample-Axon-Kafka

Sample CQRS and Event Souring impleneted using Axon Framework.MongoDB is used as the event store and Apache Kafka to distribute the events between command and query side.The UI has been developed using Vaadin Framework.

Architecture Overview

cqrs 4

Description

Download the repository and run the each of the sub module using mvn spring-boot:run command. Once the applications are up go to this address http://localhost:8081/ui

Sample Screenshot: screen shot 2018-09-09 at 6 39 42 pm

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sample-axon-kafka's Issues

Transactional messaging

Hi, I'm just a developer who is researching Axon and found out your awesome project, and I got to be curious about how you were going to handle transactional messaging.
In the diagram of README I can see command handlers are publishing events to both Kafka and MongoDB. As far as I know, we should use transactional messaging(e.g. by using outbox pattern) to make sending events to more than one components(i.e. Kafka and MongoDB in this case) to be atomic. Could I ask you how you were going to handle it?

Thank you!

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