Introducing Micronaut

Unconference at JJUG CCC 2019 Spring

Transcript

1. Introducing Micronaut 2019-05-18 JJUG CCC 2019 Spring Mitsuyuki Shiiba @bufferings
2. Micronaut https://micronaut.io/ accessed on May 19th, 2019
3. Framework for microservices These are matters for microservices: • Startup Time • Memory Footprint • Throughput
4. Micronaut - who developed it? • developed by the creators of the Grails framework • inspired by Spring, Spring Boot and Grails • backed by Object Computing, Inc. (OCI)
5. Micronaut - the way • Compile time DI & AOP • Reactive & Non-Blocking Support for HTTP Server & HTTP Client
6. Micronaut - characteristics • POLYGLOT FRAMEWORK: Java, Groovy, Kotlin • GraalVM Support
7. Micronaut - for me • Good Documents • Easy to start with CLI(mn) to generate applications • Easy to understand for those who are used to Spring Boot ◦ Controller ◦ Configuration ◦ Constructor Injection ◦ etc • Improvement speed is so fast
8. DEMO • Spring PetClinic ◦ https://github.com/spring-projects/spring-petclinic • Micronaut PetClinic ◦ https://github.com/bufferings/micronaut-petclinic
9. DEMO - result on my laptop very rough values Spring Boot Micronaut Micronaut (Native) Build 10 s 15 s 15 m Startup time 9 s 4 s 600 ms
10. Rerference • Micronaout を試した JJUG CCC 2018 Spring LT by @kencharos • Devoxx UK 2019 - Cloud-native Microservices with Micronaut • Short comparison: Building Graal Native Images with Quarkus, Micronaut and Helidon