This is a grails project to build a stand-alone server which implements the OpenAPI Spec. You can find out more about both the spec and the framework at http://swagger.io. There is an online version similar to this server at http://petstore.swagger.io/v2/swagger.json
You do not need to install Grails separately to run this project.
To start simply run:
./grailsw run-app
This will download required framework files and dependencies and start the app on port 8080. You can then navigate to the swagger-ui here:
http://localhost:8080/java-grails2/index.html