This provides a Mapbox vector tile layer returning roadworks features in the German state of Baden-Württemberg.
The following configuration options are available as environment variables:
MAX_ZOOM: default is 20ROADWORKS_API_URL: default ishttps://baustellen.strassen.baden-wuerttemberg.de/bis_wfs/wfs?VERSION=1.0.0&typeName=bis:Baustelle&request=GetFeature&outputFormat=json
Overriding the API URL is useful because it seems that the server providing the source data is blocked by the Travis CI build hosts. This can be worked around by providing a different URL.