Simple API that will encode and decode QR 2D barcodes. Based on https://github.com/dwimberger/spark-qr

1. Build image docker build -t dwimberger/qr-api .
2. Run the image with debug using
   docker run -d -p 4567:4567 dwimberger/qr-api

  curl localhost:4567/qr/`uuidgen` > test.png

  curl -F "[email protected]" https://localhost:4567/qr

Use the environment variable QR_PREFIX to generate QR codes with an arbitrary prefix (for example an URL).