React-Leaflet

React components for Leaflet maps.

Install

npm install react-leaflet

React, ReactDOM and Leaflet are peer dependencies, if you haven't already installed them use:

npm install leaflet react react-dom react-leaflet

An UMD build is also available on npmcdn:

<script src="https://npmcdn.com/react-leaflet/dist/react-leaflet.min.js"></script>

The library is injected as window.ReactLeaflet.

Getting started

If you are not familiar with Leaflet, make sure you read its quick start guide first. You will need to add its CSS to your page to render the components properly.

All components are React wrappers for Leaflet elements and layers, they need a map instance and therefore must be included in a top-level <Map> component.

Leaflet example

import L from 'leaflet';

const position = [51.505, -0.09];
const map = L.map('map').setView(position, 13);

L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
  attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);

L.marker(position).addTo(map)
  .bindPopup('A pretty CSS3 popup. <br> Easily customizable.');

React-Leaflet

import React from 'react';
import { render } from 'react-dom';
import { Map, Marker, Popup, TileLayer } from 'react-leaflet';

const position = [51.505, -0.09];
const map = (
  <Map center={position} zoom={13}>
    <TileLayer
      url='http://{s}.tile.osm.org/{z}/{x}/{y}.png'
      attribution='&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
    />
    <Marker position={position}>
      <Popup>
        <span>A pretty CSS3 popup.<br/>Easily customizable.</span>
      </Popup>
    </Marker>
  </Map>
);

render(map, document.getElementById('map-container'));

Note that the <Map> component creates its own <div> container for the map, it does not get attached to an existing node.

Technical considerations

This library uses React components as an interface, but not the virtual DOM, as all the DOM manipulations are managed by Leaflet, so there are a few things to keep in mind when using it:

Leaflet makes direct calls to the DOM when it is loaded, therefore this library is not compatible with server-side rendering.
The components exposed are abstractions for Leaflet layers, not DOM elements. Some of them have properties that can be updated directly by calling the setters exposed by Leaflet while others should be completely replaced, by setting an unique value on their key property so that they are properly handled by React's algorithm.
Not all layers are implemented and even less tested.

API

Helpers

setIconDefaultImagePath(path: string): Setter for Leaflet.Icon.Default.imagePath, set to //cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.7/images by default.

PropTypes

children: One PropTypes.node or an Array of PropTypes.node.

latLng: One of [number, number], {lat: number, lng: number} or {lat: number, lon: number}.

latLngList: An Array of LatLng.

bounds: An instance of Leaflet.LatLngBounds or a LatLngList.

controlPosition: One of topleft, topright, bottomleft or bottomright.

layerContainer: An object containing addLayer() and removeLayer() functions.

Events

Leaflet exposes its own events, different from React. You can listen to them using React-Leaflet by adding a callback to a property prefixed by on. Ex: <Map onMoveend={this.handleMoveend}>...</Map>.
Check Leaflet documentation for the events associated to each component.

Components

The properties documented as dynamic properties are updated using the relevant Leaflet setter, other properties will not update the component when they are changed after the component is mounted.
All other properties are passed as the options argument to their corresponding Leaflet element and should work fine for static maps, it is however unlikely that they would updated if you change them afterwards.

You can directly access the Leaflet element created by a component using the getLeafletElement() method on this component. This leaflet element is usually created in componentWillMount(), except for the Map component where it can only be created after the <div> container is rendered.

Base components

These components are base classes used by other components. They can be extended to create custom components but should not be used directly.

MapComponent

Base class extending React.Component and handling events binding and unbind.
It exposes a getLeafletElement() method to access the Leaflet object created for the component.

MapControl

Base class extending React.Component for controls.
It exposes a getLeafletElement() method to access the Leaflet object created for the control.

MapLayer

Base class extending MapComponent using the provided map prop to add its element and passing it down to its children.
It exposes the following methods:

getClonedChildrenWithMap(object extra): object: returns the cloned children of the component, adding the map and the extra props provided to them.
renderChildrenWithProps(object props): object: returns the cloned children of the component using getClonedChildrenWithMap(), wrapped in a <div> with display: none style.

BaseTileLayer

Base class extending MapLayer with a render() method and handling a TitleLayer opacity and zIndex props.

Path

Base class extending MapLayer with the following methods:

getPathOptions(object props): object: filters the input props and return a new object of Path options properties.
setStyle(object options = {}): void: alias to the Leaflet element setStyle().
setStyleIfChanged(object fromProps, object toProps): void: extracts the Path options of the two arguments, and calls setStyle() with the new options if different from the previous ones.

Map

This is the top-level component that must be mounted for children ones to be rendered. Refer to Leaflet documentation for more information about the properties.

Dynamic properties

animate: boolean (optional): If true, panning will always be animated if possible. Defaults to false.
bounds: bounds (optional): A rectangle for the map to contain. It will be centered, and the map will zoom in as close as it can while still showing the full bounds. This property is dynamic, if you change it it will be reflected on the map.
boundsOptions: object (optional): Options passed to the fitBounds() method.
center: latLng (optional): Center of the map. This property is dynamic, if you change it it will be reflected in the map.
className: string (optional): className property of the <div> container for the map.
maxBounds: bounds (optional)
style: object (optional): style property of the <div> container for the map.
zoom: number (optional)

Other properties

id: string (optional): The ID of the <div> container for the map. If you don't provide it, a unique one will be created.

fyyyyy/react-leaflet

React-Leaflet

Install

Getting started

Technical considerations

API

Helpers

PropTypes

Events

Components

Base components

MapComponent

MapControl

MapLayer

BaseTileLayer

Path

Map

UI Layers

Marker

Popup

Raster Layers

TileLayer

ImageOverlay

Implemented but needing testing and documentation

Vector Layers

Circle

CircleMarker

Polyline

MultiPolyline

Polygon

MultiPolygon

Rectangle

Other Layers

LayerGroup

FeatureGroup

GeoJson

Controls

AttributionControl

LayersControl

LayersControl.BaseLayer

LayersControl.Overlay

ScaleControl

ZoomControl

Creating custom components

Changelog

License