SnowCamp 2019

In this talk, I will live code a Spring Boot application with no annotation that will run as a native image compiled with GraalVM. This application will leverage Kofu configuration, a Kotlin DSL designed to configure your application in a functional way.

I will also present various features currently incubated in Spring Fu:

* Kofu (Kotlin DSL) and Jafu (Java DSL) configuration for Spring Boot
* Minimal set of features enabled by default
* No classpath scanning, no feature enabled based on classpath detection
* Both declarative (via the DSL) and programmatic (code auto-complete, allow any kind of if, for statements)
* Functional configuration based on pure lambdas
* Minimal reflection usage, no CGLIB proxy, no annotation processing
* Faster startup and lower memory consumption
* GraalVM native images support
* Reactive SQL via R2DBC
* Coroutines web and persistence API

I will explain where we are, what we learnt, and what's coming next in term of new Spring Framework and Spring Boot features.