Original Source: https://github.com/ratpack/example-ratpack-gradle-kotlin-app,
But it has become obsolete and does not work with latest libraries,
So tried to upgrade libs to the latest version for better hands on.
This is an example Ratpack app that:
- Is implemented in Kotlin
- Use Guice for dependency injection
- Uses the
ratpackGradle plugin - Uses SpringSource's SpringLoaded for runtime reloading of classes during development
- Adds helper functions to make Ratpack more Kotlin like (see
helpers.kt)
Check this project out, cd into the directory and run:
./gradlew run
This will start the ratpack app in a development mode. In your browser go to http://localhost:5050.
The Gradle Ratpack plugin builds on the Gradle Application plugin. This means it's easy to create a standalone distribution for your app.
Run:
./gradlew clean build
./gradlew installDist
cd build/libs/
java -jar example-ratpack-gradle-kotlin-app-master-all.jar
Your app should now be running (see http://gradle.org/docs/current/userguide/application_plugin.html) for more on what the Gradle application plugin can do for you.
Most application classes can be changed at runtime without needing to restart the application. This is made possible by Gradle's Continuous Mode via Ratpack's Gradle plugin.
If running the application via ./gradlew run --continuous or ./gradlew run -t for short, you will see your changes to source code be detected and applied.
The Ratpack Gradle plugin has special support for IntelliJ IDEA. To open the project in IDEA, run:
./gradlew idea
This will generate a .ipr file that you can use to open the project in IDEA.
In the “Run” menu, you will find a run configuration for launching the Ratpack app from within your IDE.
Hot reloading is not supported in this mode.
To learn more about Ratpack, visit http://www.ratpack.io and join our slack channel https://slack-signup.ratpack.io/