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java experiments with Zeebe 0.12.0 Oct 17, 2018
README.md fixed docs Mar 21, 2018

README.md

Flowing Retail / Apache Kafka

This folder contains services that connect to Apache Kafka as means of communication between the services.

Microservices

The nice thing about this architecture is, that Kafka is the only common denominator. For every service you can freely decide for

  • programming language and
  • workflow engine.

You find the variations in the sub folders. Note that I do not yet have implemented all possible combinations. So you might want to start with:

Concrete technologies/frameworks:

Java

  • Java 8
  • Spring Boot 1.5.x
  • Spring Cloud Streams

And of course

  • Apache Kafka
  • Camunda or Zeebe

Communication of services

The services have to collaborate in order to implement the overall business capability of order fulfillment. This example focues on:

  • Asynchronous communication via Apache Kafka
  • Event-driven wherever appropriate
  • Sending Commands in cases you want somebody to do something, which involves that events need to be transformed into events from the component responsible for, which in our case is the Order service:

Events and Commands