Micronaut is a modern, JVM-based, full stack microservices framework designed for building modular, easily testable microservice applications.

Micronaut is developed by the creators of the Grails framework and takes inspiration from lessons learnt over the years building real-world applications from monoliths to microservices using Spring, Spring Boot and Grails.

Micronaut aims to provide all the tools necessary to build microservice applications including:

  • Dependency Injection and Inversion of Control (IoC)
  • Sensible Defaults and Auto-Configuration
  • Configuration and Configuration Sharing
  • Service Discovery
  • HTTP Routing
  • HTTP Client with Client-Side Load Balancing

At the same time Micronaut aims to avoid the downsides of frameworks like Spring, Spring Boot and Grails by providing:

  • Fast startup time
  • Reduced memory footprint
  • Minimal use of reflection
  • Minimal use of proxies
  • Easy Unit Testing

Source: https://github.com/micronaut-projects/micronaut-core

The Team

  • Shipra: Computer Science masters student @TU Delft, 3 years of experience in Software Development and Testing, interested in Security, Machine Learning and Software Engineering!
  • Sayra: First-year Computer Science Master’s student. Interested in Machine Learning, Software Engineering and Embedded Systems.
  • Fabian: CS master student @Université de Rennes 1 & @TU Delft, Passioned about: Agile Development, Continuous Delivery, Cloud & Domain Driven Design
  • Héctor: Cloud Computing and Services master student @Aalto University & @TU Delft, interested in containers, Cloud Native development and good software practices!

Micronaut - The Product Vision

Micronaut is a full stack framework for JVM developers helping them to build modular, easily testable microservices and cloud-native applications. It provides a familiar development workflow similar to Spring or Grails but with a minimal startup time and memory usage. Therefore, Micronaut covers the gap where traditional MVC frameworks are not suitable, such as Android applications, serverless functions and IoT Deployments.

Micronaut - From Vision to architecture

As described in the previous blogpost, Micronaut is a framework that provides many different functionalities and tools to build a Microservice application. This blogpost describes, therefore, how all these different functionalities are organized and which patterns are implemented to provide the best experience for a user developing an application.

Micronaut - Quality and Technical Debt

In our previous blogpost, we discussed about Micronaut’s architectural patterns and its different views. In the third blogpost of this series, we analyze the quality of Micronaut’s codebase and look into the measures taken to ensure its maintainability.

Micronaut - A perfect Microservice framework?

Whereas the previous blogposts focused on the internal architecture view of Micronaut, we decided to change now the perspective in our last blogpost and look at Micronaut through the eyes of a software architect who wants to build a microservice application. Micronaut claims to be “a modern, JVM-based, full-stack framework for building modular, easily testable microservices and serverless applications”. Therefore, we explore how Micronaut solves common challenges when developing microservices.