Demonstrates asynchronous communication between two headless services:

• order-generator
• order-validator

None

Any of two apps by default connects to localhost:9092 kafka, but we can override the property by setting from outside:

spring.kafka.consumer.bootstrap-servers

From the root directory, execute the following commands in different shells (tabs / panes):

• make kafka-up
• make run-app app=order-generator
• make run-app app=order-validator