Micronaut is a modern, JVM-based, full-stack framework for building modular, easily testable microservice applications. This tutorial will create three microservices using Java, Kotlin and Groovy.

Here we see the @Configuration annotation for the first time, which marks a transition from autowired annotation-based Spring to Java-configuration-based Spring.

The Servlet provides multipart processing capabilities through the addition of the @MultipartConfig annotation at the start of the class. This annotation also allows the developer to set various file ...