A response handed to one of the exported pure transforms (filterStations,
aggregateSituation, onlyStates, the GeoJSON converters) must be an object with a
data array of objects, as the client returns it; anything else used to fail as a raw
TypeError ("Cannot read properties of undefined").
A response handed to one of the exported pure transforms (
filterStations,aggregateSituation,onlyStates, the GeoJSON converters) must be an object with adataarray of objects, as the client returns it; anything else used to fail as a raw TypeError ("Cannot read properties of undefined").