Reactive programming with Spring boot 2

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AN INTRODUCTION TO SPRING BOOT 2.0

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WHAT IS SPRING BOOT? - Framework to build production-ready applications - Based on Spring framework - Version 2.0 released this month

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WHAT IS NEW IN 2.0? - Spring 5 - Project Reactor - Java 9 support - Kotlin integration - ...

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REACTIVE STREAMS

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- Non-blocking - Data streams - Back pressure - Asynchronous REACTIVE STREAMS

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KEY COMPONENTS Publisher Mono Flux Operators Subscriber

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KEY COMPONENTS

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SPRING MVC

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WEBFLUX

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ROUTER FUNCTION

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TRADITIONAL REPOSITORY

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REACTIVE REPOSITORY

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WEBCLIENT

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LIVE CODING TIME

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WHY ADAPT? - When writing new projects - When moving to Java 9 - When you want to use Spring 5 - When you want to use Kotlin

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WHY REACTIVE? - When real time or event-driven communication is important - When processing large, or infinite amounts of data - When you expect that there will be a large amount of traffic

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WHY NOT REACTIVE? - When expected to make blocking calls

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ANY QUESTIONS?* * Make sure to ask them in a reactive way. Don’t block your brains when you’re waiting for an answer.

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RESOURCES - Shameless self-promotion: https://g00glen00b.be/getting-started-spring-boot-2/ - More shameless self-promotion: https://blog.optis.be/spring-devoxx-7c0fa8a9dc9f - Building a reactive RESTful service: https://spring.io/guides/gs/reactive-rest-service/ - Live demo code: https://github.com/optis/spring-boot-2-webflux

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THE END