A simple proxy to sit between the Nuki bridge and openHAB (since the openHAB REST API requires Content-Type=text/plain but Nuki sends application/json)
Copy nukiproxy.ini.example -> nukiproxy.ini and update with your settings.
Run via python nukiproxy.py.
Configure your Nuki bridge callback URL to point to nukiproxy.
NOTE: as of v1.3.5 of the Nuki bridge firmware the callback will fail if the nukiproxy has an endpoint other than /.