Because of the need to accept the highcharts licence and this was difficult to do without mucking about with inputs to scripts etc. tag 1.0.1 build was created after launching a container of 1.0.0 and running the install, accepting the licence etc. and using docker commit to make a new tagged image.

docker run -d -p 3001:3001 paulatstepup/highcharts-export-server:1.0.1

curl -H "Content-Type: application/json" -X POST -d '{"infile":{"title": {"text": "Steep Chart"}, "xAxis": {"categories": ["Jan", "Feb", "Mar"]}, "series": [{"data": [29.9, 71.5, 106.4]}]}}' 127.0.0.1:3001 -o mychart.png

//http://34.242.3.27:3001/

curl -H "Content-Type: application/json" -X POST -d '{"infile":{"title": {"text": "Steep Chart"}, "xAxis": {"categories": ["Jan", "Feb", "Mar"]}, "series": [{"data": [29.9, 71.5, 106.4]}]}}' 34.242.3.27:3001 -o mychart.png