Fn Project Native Java Function using GraalVM

Usage

1. Build and deploy the function

fn deploy --app javafn --local

Note: Requires mvn CLI installed.

2. Call the function

curl -d 'Leonardo' http://localhost:8080/r/javafn/native

FAQ: How to create a new Native Java Function using GraalVM?

1. Create a new Java function with fn init --runtime java8.

2. Add reflection.json file (see reflection.json example and GraalVM docs).

3. Copy Dockerfile and change CMD to your entrypoint.

4. Change your func.yaml to use docker runtime and add build commands.

Note: More advanced use cases using fnproject/fdk-java are also working.