How to run this stuff

Install NodeJS https://nodejs.org/en/download/current/

Install the dependencies

npm install

Start the dev server that uses webpack (see details in the webpack.config.js)

npm start

Open the webserver in either Chrome or Firefox and point to

http://localhost:8081

Building and installing into DHIS2

Edit src/index.html to make it load ../app.js, see instructions in that file. Then open src/api.js and make sure serverUrl is set to the correct relative URL.

Make sure webpack is installed, then build:

webpack --progress --verbose

Zip everything, upload to DHIS. That's it.