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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. 1

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Sergio del Amo https://sergiodelamo.com @sdelamo Member of the Micronaut Foundation Board of Directors Micronaut Lead Engineer at Object Computing Inc. Micronaut Developer Advocate Involved with Micronaut since its inception. Micronaut Core committer. Micronaut Guides. Micronaut Starter, Security, AWS, Views, RSS, Problem+JSON, Email, 3

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© 2022 Object Computing, Inc. (OCI) All rights reserved. No part of these notes may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior, written permission of Object Computing, Inc. (OCI) INTRODUCTION

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Open Source 5 Apache 2.0

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Modern JVM Framework ❖ Micronaut was designed from scratch in 2017, focused on modern architectures like microservices and serverless, with the cloud in mind. 6 All application types ❖ Micronaut is a complete solution for any type of application: microservices, message-driven producers or consumers, command- line apps, serverless functions Highly optimized ❖ Micronaut leverages Java annotation processors and other optimizations to compute the framework infrastructure at compile- time, drastically reducing startup time and memory consumption.

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Release Schedule 7 • 3.8.0 - 2022 Dec • 3.7.0 - 2022 Sep • 3.6.0 - 2022 Aug • 3.5.0 - 2022 May • 3.4.0 - 2022 March • 3.3.0 - 2022 Jan • 3.2.0 - 2021 Nov • 3.1.0 - 2021 Oct • 3.0.0 - 2021 Aug • 2.5.0 - 2021 April • 2.4.0 - 2021 March • 2.3.0 - 2021 Jan • 2.2.0 - 2020 Nov • 2.1.0 - 2020 Oct • 2.0.0 - 2020 Jun • 1.3.0 - 2020 Feb • 1.2.0 - 2019 Aug • 1.1.0 - 2019 April • 1.0.0 - 2018 Oct 1 Year - Mayor 6 Week - Minor 1-2 Week - Patch

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. AOT: Ahead of Time Micronaut computes at build time: ‣ All dependency and configuration injection ‣ Annotation metadata (meta annotations) ‣ AOP proxies ‣ Bean introspections ‣ All other framework infrastructure At runtime ‣ No reflection. ‣ No proxy generation. ‣ No dynamic classloading. ‣ No classpath scanning. 8

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Configuration Dependency Injection ❖ Can use JSR-330 (@Inject) annotations 9 ❖ Properties, YAML, TOML, Groovy, Config4K. Validation support ❖ Built-in reflection free, faster startup, smaller JAR, reduced memory. ❖ Hibernate Validation: full Bean Validation API compliance. AOP: Aspect-Oriented Programing ❖ Compile-time, reflection free. HTTP Client ❖ Micronaut includes an HTTP client that has both a low-level API and a higher-level AOP-driven API.

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. LANGUAGE AGNOSTIC 10

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Java Version 11 8 11 17

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. BUILD AGNOSTIC 12

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. TEST FRAMEWORK AGNOSTIC 13

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© 2022 Object Computing, Inc. (OCI) All rights reserved. No part of these notes may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior, written permission of Object Computing, Inc. (OCI) DEMO

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. GraalVM Native Executable 15

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. ❖ RxJava 2 ❖ RxJava 3 ❖ Project Reactor Reactive Library Agnostic 16

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Serverless 17

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. CLOUD AGNOSTIC 18

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Micronaut Runtimes 19 Servlet

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Messaging 20

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Database Migration Tools 21

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Persistence 22

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Micronaut Views 23 Server Side View Redendering Pebble Rocker Soy

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Micronaut Security 24 Security OAuth 2.0 OpenID Connect LDAP BasicAuth JWT

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Error Handling ❖ Vnd.Error ❖ Problem+JSON 25

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Tracing 26

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Copyright © 2022 by Object Computing, Inc. (OCI). All rights reserved. Service Discovery 27

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Monitoring ❖ Micrometer ❖ JMX ❖ Elasticsearch 28 API ❖ GRAPHQL ❖ GRPC ❖ Open API Containers ❖ Kubernetes K8S MISC ❖ Cache ❖ Email ❖ Picocli ❖ RSS

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Micronaut Resources ❖ micronaut.io/launch ❖ micronaut.io/docs ❖ micronaut.io/guides ❖ micronaut.io/blog ❖ micronaut.io/category/webinar ❖ micronaut.io/resources/community-support ❖ github.com/micronaut-projects/micronaut-core ❖ micronaut.io/foundation ❖ micronaut.io/commercial-support ❖ objectcomputing.com/products/micronautsolutions 29

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Copyright © 2021 by Object Computing, Inc. (OCI). All rights reserved. Q & A 30

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© 2022 Object Computing, Inc. (OCI) All rights reserved. No part of these notes may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior, written permission of Object Computing, Inc. (OCI) OCI Contact Information Sergio del Amo Caballero OCI Micronaut Core Development Team [email protected] Jen Wiese Community Engagement Manager [email protected] (314) 579-0066 micronaut.io