Working sample app showing usage of RxJava, RetroLambda, RetroFit, Dagger2 and Kotlin.
Uses NASA's NeoWs API as its data source.
Requires JDK 1.8 installed (for RetroLambda) and JAVA_HOME pointing at it. Or you can point the build at your JDK1.8 installation using a line like this - in the app module's build.gradle:
retrolambda {
jdk '/Library/Java/JavaVirtualMachines/<your_jdk1.8_version>/Contents/Home'
}