Integration with the RxJava library - https://github.com/ReactiveX/RxJava
'io.ratpack:ratpack-rx:0.9.13'
<dependency> <groupId>io.ratpack</groupId> <artifactId>ratpack-rx</artifactId> <version>0.9.13</version> </dependency>
<dependency org="io.ratpack" name="ratpack-rx" rev="0.9.13"/>
"io.ratpack", "ratpack-rx", "0.9.13"