exercises/creating_java_actions/problem.md

This exercise will test that you understand how to create OpenWhisk Actions using the Java runtime. Complete the following tasks to finish the exercise.

Create an Action (hello-world-java) which uses Java runtime and returns the following message.

{
  "message": "Hello World"
}

Create an Action (london-location-java) that uses the Google Geocoding API to return that latitude and longitude for London in the following format...

{
  "lat": 0.00,
  "lng": 0.00
}

HINTS

Documentation for creating Java Actions is available here. https://github.com/openwhisk/openwhisk/blob/master/docs/actions.md#creating-java-actions

The Google GSON library must exist in your Java CLASSPATH when compiling the Java file. https://github.com/google/gson

Once you have compiled your Java source to a class file, it needs adding to a JAR file for deployment using the command-line utility.

Documentation for the Google Geocoding API is available here: https://developers.google.com/maps/documentation/geocoding/intro

» Need help with the task? openwhisk-workshop more » To verify your work, run: openwhisk-workshop verify