For Training Purpose
Reference link Docker https://www.docker.com/blog/kickstart-your-spring-boot-application-development/
Reference link Kafka with Springboot
https://spring.io/projects/spring-kafka https://github.com/spring-projects/spring-kafka/tree/main/samples
Reference link for Junit with core java
https://www.geeksforgeeks.org/junit-sample-test-cases-for-string-java-service/ https://www.browserstack.com/guide/how-to-write-junit-test-cases
Reference link for junit with Springboot rest api & Springboot web application https://www.springboottutorial.com/unit-testing-for-spring-boot-rest-services https://developer.okta.com/blog/2019/03/28/test-java-spring-boot-junit5