As there is always a chance, that the server with the API goes down for administrative or technical reasons, it might be useful to have a fallback json file with the geo-data, which is updated every quater-year, and where the map interface falls back on, if the request to the API is not answered within a certain time.
That could save a lot of "oh my god, the map is not showing anymore", if some problems with the server arise.
As there is always a chance, that the server with the API goes down for administrative or technical reasons, it might be useful to have a fallback json file with the geo-data, which is updated every quater-year, and where the map interface falls back on, if the request to the API is not answered within a certain time.
That could save a lot of "oh my god, the map is not showing anymore", if some problems with the server arise.