Mapbox GL JS Style Immutable Flowtype

types.js

// @flow
import mapboxgl from 'mapbox-gl';
import { Record } from 'immutable';
import type { RecordFactory, RecordOf } from 'immutable';

type MapStyleProps = {
  version: number,
  name: ?string,
  center: ?[number, number],
  zoom: ?number,
  bearing: ?number,
  pitch: ?number,
  light: ?Object,
  sprite: ?string,
  glyphs: ?string,
  transition: ?Object,
  sources: Object,
  layers: Array<Object>
};

export type MapStyle = RecordOf<MapStyleProps>;

const makeMapStyle: RecordFactory<MapStyleProps> = Record({
  version: 8,
  name: undefined,
  center: null,
  zoom: null,
  bearing: null,
  pitch: null,
  light: null,
  sprite: null,
  glyphs: null,
  transition: null,
  sources: {},
  layers: []
});

export default makeMapStyle;