Independent from the payload specific for each feature type, a set of properties carrying metadata is common to all Map objects:
|bbox||Optional bounding box|
|geometry||Object geometry. This may be null for non-spatial features.|
|Type||"Feature"||Clients may be able to handle type "FeatureCollection”, but this is out of scope of Map Objects.|
|Properties.common.Featuretype||FeatureType, e.g. Place, Roadsegment, Building. See “domain/FeatueType.json” for a full list of valid feature types.|
|Properties.common.isoCountryCode||ISO Countrycode where the feature is located|
All metadata is optional and not published if not known.