$ npm install
This command will create all the dependencies
ctrl+shift+alt+s
Open intellij setting and install nodejs plugin.
click Edit configuration in the Run menu to point to %project%/app.js
$ npm install
$ node runAllSpecs.js
Into an output file:
$ java -jar tools/qrcode-generator-1.0.0-shaded.jar -f png -w 125 -h 125 -o output.png -u http://hexgame
Into a dataURI (that you can then use in a <img src="data:image/png;base64,iVBORw[...]" />):
$ java -jar qrcode-generator-1.0.0-shaded.jar -f dataURI -w 125 -h 125 -u http://hexgame