Todo-backend with a spring boot 2 - web reactive - kotlin.
Storage is a simple map.
This implementation use Kotlin router.
mvn package
java -jar target/simple_kotlin-0.0.1-SNAPSHOT.jar
or
java -jar target/simple_kotlin-0.0.1-SNAPSHOT.jar XXXXX
XXXXX is the domain on which you deploy the application ( default http://localhost:8080 )