src/lib/MarkerClusterGroup.js


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import L from 'leaflet'
import { createPathComponent } from '@react-leaflet/core'
import 'leaflet.markercluster'

function createMarkerCluster({ children: _c, ...props }, context) {
  const clusterProps = {}
  const clusterEvents = {}
  // Splitting props and events to different objects
  Object.entries(props).forEach(([propName, prop]) =>
    propName.startsWith('on')
      ? (clusterEvents[propName] = prop)
      : (clusterProps[propName] = prop)
  )
  const instance = new L.MarkerClusterGroup(clusterProps)

  // Initializing event listeners
  Object.entries(clusterEvents).forEach(([eventAsProp, callback]) => {
    const clusterEvent = `cluster${eventAsProp.substring(2).toLowerCase()}`
    instance.on(clusterEvent, callback)
  })
  return {
    instance,
    context: {
      ...context,
      layerContainer: instance,
    },
  }
}

const MarkerClusterGroup = createPathComponent(createMarkerCluster)

export default MarkerClusterGroup