Micronaut and Spring Boot are popular frameworks for developing microservices in Java. They offer robust features for REST API, but their approach towards dependency injection, start-up time, and memory usage differ. This article presents a detailed comparison between both frameworks on various parameters such as implementation, performance metrics, and usefulness of each framework.

The Micronaut Framework Overview

This is a recently developed framework aimed to develop faster microservices and serverless services. Its main feature of compile-time dependency injection results in faster startup times and less memory usage. It has built-in support for cloud environments and serverless deployments and can be integrated with GraalVM. This makes the Micronaut framework suitable for applications where resource utilization is paramount.