MapConductor React SDK Samples

Code example

import { useMemo, useState } from 'react';
import {
  createGeoPoint,
  createMapCameraPosition,
  createMarkerState,
  type MarkerState,
} from '@mapconductor/js-sdk-core';
import { InfoBubble, Markers } from '@mapconductor/js-sdk-react';
import { MapLibreDesign, MapLibreMapView2D, useMapLibreViewState } from '@mapconductor/react-for-maplibre';


// (1) Create the map


const initialCamera = createMapCameraPosition({
  position: createGeoPoint({ latitude: 35.6812, longitude: 139.7671 }),
  zoom: 12,
});


const mapViewState = useMapLibreViewState({
  mapDesignType: MapLibreDesign.OsmBrightJa,
  cameraPosition: initialCamera,
});


// (2) Prepare the data and interaction state
const [selected, setSelected] = useState<MarkerState | null>(null);
const markers = useMemo(() => markerData.map(item => createMarkerState({
  id: item.id,
  position: createGeoPoint(item.position),
  icon: item.icon,
  onClick: markerState => setSelected(markerState),
})), [markerData]);


// (3) Render the map and its overlays


<MapLibreMapView2D state={mapViewState}>
  <Markers states={markers} />
  {selected && <InfoBubble marker={selected}>{selected.extra}</InfoBubble>}
</MapLibreMapView2D>

How the code works

Compose markers with several icon sources and open a bubble when a marker is selected.

The markers array is memoized from markerData, and each createMarkerState carries its own icon plus an onClick that records the selected MarkerState.

The batched <Markers> renders every icon variant together, and the InfoBubble surfaces selected.extra only while a marker stays active.