This is a very simple application showing how to provide a REST service using ratpack.io. You can start it using just
./gradlew run
There is also an angular client integrated in this example. You can access is with you webbrowser at localhost:5060/index.html
There is a karma client installed and a simple testcase for showing it. To start is you shold
npm install
npm test
You should see a browser window and the test are running on every change of your source file
The orignal sources of this sample can be found at https://github.com/danveloper/ratpack-sample