nelvadas/GraalVM-Polyglot-Labs

GraalVM Labs : Building Polyglot Applications with Java, Javascript, R, Python

GraalVM Polyglot Labs

Introduction

The purpose of this lab series is to gradually build a complete GraalVM Polyglot application using various languages:

• Java
• Javascript
• Python
• R

Functionally, the application makes it possible to visualize the covid-19 hospitalizations trends in a French department. This application relies on data provided by the French Pucblic Health Agency Santé Publique France.

Stack

The application consists of a JAX-RS Controller with a set of REST Helidon endpoints that enables users to visualize a Covid-19 evolution in France in a Polyglot way.

Table of Contents

• 00. Installation
• 01. Building a Simple GraalVM Polyglot Application
• 02. Interacting with Guest Language resources
• 03. Computed Arrays Using Polyglot Proxies

Resources

• The lab is built from the full github example https://github.com/nelvadas/helidon-polyglot-demo
• GraalVM Polyglot Reference https://www.graalvm.org/reference-manual/embed-languages/
• Full Blog post Medium
• Dataset Stable Link Covid-19 hospitalizations data file