Reading/writing foreign members from/to GeoJSON

The GeoJSON format allows to store additional properties in objects (RFC 7946, section 6.1), but OpenLayers does not read and write them.

Expected behavior:

import GeoJSON from 'ol/format/GeoJSON';

const parser = new GeoJSON();

const geometry = parser.readGeometry({
  type: 'Point',
  coordinates: [0, 0],
  kind: 'bakery'
});

console.log(geometry.getProperties()); // currently: {}, expected: {kind: 'bakery'}
console.log(geometry.getKeys()); // currently: [], expected: ['kind']

[icholy]

Your preferred way of doing it is incorrect.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.