here there is a sample of ours geojson:
{
"type": "FeatureCollection",
"name": "toscana_comuni_2002",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:EPSG::32632" } },
"features": [
{ "type": "Feature",
"properties": {
"ID_0": 0,
"ID_1": "051017",
"NAME_1": "Cortona" },
"geometry": {
"type": "MultiPolygon",
"coordinates":
[...]
as you can see, geojson contains only maps. We have thousands of maps and thousands of columns, we can’t create a specific geojson for every data to represent.