react-map-gl-geocoder

React wrapper for mapbox-gl-geocoder for use with react-map-gl.

Demo

https://codesandbox.io/s/l7p179qr6m

Installation

NPM

$ npm install react-map-gl-geocoder

or

Yarn

$ yarn add react-map-gl-geocoder

Styling

Import:

import 'react-map-gl-geocoder/dist/mapbox-gl-geocoder.css'

or

Link tag in header:

<link href='https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v4.2.0/mapbox-gl-geocoder.css' rel='stylesheet' />

Props

Only mapRef and mapboxApiAccessToken are required.

Name	Type	Default	Description
mapRef	Object		Ref for react-map-gl map component.
containerRef	Object		This can be used to place the geocoder outside of the map. The position prop is ignored if this is passed in. Example: https://codesandbox.io/s/v0m14q5rly
onViewportChange	Function	() => {}	Is passed updated viewport values after executing a query.
mapboxApiAccessToken	String		https://www.mapbox.com/
inputValue	String		Sets the search input value
origin	String	"https://api.mapbox.com"	Use to set a custom API origin.
zoom	Number	16	On geocoded result what zoom level should the map animate to when a bbox isn't found in the response. If a bbox is found the map will fit to the bbox.
placeholder	String	"Search"	Override the default placeholder attribute value.
proximity	Object		A proximity argument: this is a geographical point given as an object with latitude and longitude properties. Search results closer to this point will be given higher priority.
trackProximity	Boolean	false	If true, the geocoder proximity will automatically update based on the map view.
collapsed	Boolean	false	If true, the geocoder control will collapse until hovered or in focus.
clearAndBlurOnEsc	Boolean	false	If true, the geocoder control will clear it's contents and blur when user presses the escape key.
clearOnBlur	Boolean	false	If true, the geocoder control will clear its value when the input blurs.
bbox	Array		A bounding box argument: this is a bounding box given as an array in the format [minX, minY, maxX, maxY]. Search results will be limited to the bounding box.
types	String		A comma seperated list of types that filter results to match those specified. See https://www.mapbox.com/developers/api/geocoding/#filter-type for available types.
countries	String		A comma separated list of country codes to limit results to specified country or countries.
minLength	Number	2	Minimum number of characters to enter before results are shown.
limit	Number	5	Maximum number of results to show.
language	String		Specify the language to use for response text and query result weighting. Options are IETF language tags comprised of a mandatory ISO 639-1 language code and optionally one or more IETF subtags for country or script. More than one value can also be specified, separated by commas.
filter	Function		A function which accepts a Feature in the Carmen GeoJSON format to filter out results from the Geocoding API response before they are included in the suggestions list. Return true to keep the item, false otherwise.
localGeocoder	Function		A function accepting the query string which performs local geocoding to supplement results from the Mapbox Geocoding API. Expected to return an Array of GeoJSON Features in the Carmen GeoJSON format.
reverseGeocode	Boolean	false	Enable reverse geocoding. Defaults to false. Expects coordinates to be lat, lon.
enableEventLogging	Boolean	true	Allow Mapbox to collect anonymous usage statistics from the plugin.
render	Function		A function that specifies how the results should be rendered in the dropdown menu. Accepts a single Carmen GeoJSON object as input and return a string. Any html in the returned string will be rendered. Uses mapbox-gl-geocoder's default rendering if no function provided.
position	String	"top-right"	Position on the map to which the geocoder control will be added. Valid values are "top-left", "top-right", "bottom-left", and "bottom-right".
onInit	Function	() => {}	Is passed Mapbox geocoder instance as param and is executed after Mapbox geocoder is initialized.
onClear	Function	() => {}	Executed when the input is cleared.
onLoading	Function	() => {}	Is passed { query } as a param and is executed when the geocoder is looking up a query.
onResults	Function	() => {}	Is passed { results } as a param and is executed when the geocoder returns a response.
onResult	Function	() => {}	Is passed { result } as a param and is executed when the geocoder input is set.
onError	Function	() => {}	Is passed { error } as a param and is executed when an error occurs with the geocoder.

Example

import 'mapbox-gl/dist/mapbox-gl.css'
import 'react-map-gl-geocoder/dist/mapbox-gl-geocoder.css'
import React, { Component } from 'react'
import MapGL from 'react-map-gl'
import Geocoder from 'react-map-gl-geocoder'

function getAccessToken() {
  var accessToken = null;

  if (typeof window !== 'undefined' && window.location) {
    var match = window.location.search.match(/access_token=([^&\/]*)/);
    accessToken = match && match[1];
  }

  if (!accessToken && typeof process !== 'undefined') {
    // Note: This depends on bundler plugins (e.g. webpack) inmporting environment correctly
    accessToken = accessToken || process.env.MapboxAccessToken; // eslint-disable-line
  }

  return accessToken || null;
}

// Ways to set Mapbox token: https://uber.github.io/react-map-gl/#/Documentation/getting-started/about-mapbox-tokens
const MAPBOX_TOKEN = getAccessToken()

class Example extends Component {
  state = {
    viewport: {
      latitude: 37.7577,
      longitude: -122.4376,
      zoom: 8
    }
  }

  mapRef = React.createRef()

  handleViewportChange = (viewport) => {
    this.setState({
      viewport: { ...this.state.viewport, ...viewport }
    })
  }

  // if you are happy with Geocoder default settings, you can just use handleViewportChange directly
  handleGeocoderViewportChange = (viewport) => {
    const geocoderDefaultOverrides = { transitionDuration: 1000 }

    return this.handleViewportChange({
      ...viewport,
      ...geocoderDefaultOverrides
    })
  }

  render() {
    return (
      <MapGL
        ref={this.mapRef}
        {...this.state.viewport}
        width="100%"
        height="100%"
        onViewportChange={this.handleViewportChange}
        mapboxApiAccessToken={MAPBOX_TOKEN}>
        <Geocoder
          mapRef={this.mapRef}
          onViewportChange={this.handleGeocoderViewportChange}
          mapboxApiAccessToken={MAPBOX_TOKEN}
        />
      </MapGL>
    )
  }
}

export default Example