SimulatorControl | A Swift Package for simctl automation | Image Editing library

If you want your app to be reactive, consider using RxJava in backend (there are, however, other reactive libraries, Comparison of Java reactive frameworks)

I suggest you to use RxJava (http://reactivex.io/, introduction). It is pretty difficult at the beginning, but once you get it, you will have an access to this library across quite a few platforms (ruby, javascript, java etc., http://reactivex.io/languages.html)

The most important thing you will have to learn about is an Observable (generic docs | java docs). Then just implement listeners using RxJava api (most probably you will want to use subscribe method) similarly to the code snippet you have sent.

Some blogs to read:

• https://medium.com/netflix-techblog/reactive-programming-in-the-netflix-api-with-rxjava-7811c3a1496a
• https://gist.github.com/staltz/868e7e9bc2a7b8c1f754
• https://learningsolo.com/introduction-to-rxjava-reactive-programming-in-java/

Based on James_D's comment; Here is the working codes:

You can use the catch-all route parameters like {*segment} to capture the remaining portion of the URL path.

The assumption here is that attribute routing is already enabled.