leaflet-control-geocoder/src/geocoders/mapbox.js

Extendable geocoder with builtin support for Nominatim, Bing, Google, Mapbox, Photon, What3Words, MapQuest, Mapzen

var L = require('leaflet'),
	Util = require('../util');

module.exports = {
	class: L.Class.extend({
		options: {
			serviceUrl: 'https://api.tiles.mapbox.com/v4/geocode/mapbox.places-v1/'
		},

		initialize: function(accessToken, options) {
			L.setOptions(this, options);
			this._accessToken = accessToken;
		},

		geocode: function(query, cb, context) {
			Util.getJSON(this.options.serviceUrl + encodeURIComponent(query) + '.json', {
				access_token: this._accessToken,
			}, function(data) {
				var results = [],
				loc,
				latLng,
				latLngBounds;
				if (data.features && data.features.length) {
					for (var i = 0; i <= data.features.length - 1; i++) {
						loc = data.features[i];
						latLng = L.latLng(loc.center.reverse());
						if(loc.hasOwnProperty('bbox'))
						{
							latLngBounds = L.latLngBounds(L.latLng(loc.bbox.slice(0, 2).reverse()), L.latLng(loc.bbox.slice(2, 4).reverse()));
						}
						else
						{
							latLngBounds = L.latLngBounds(latLng, latLng);
						}
						results[i] = {
							name: loc.place_name,
							bbox: latLngBounds,
							center: latLng
						};
					}
				}

				cb.call(context, results);
			});
		},

		suggest: function(query, cb, context) {
			return this.geocode(query, cb, context);
		},

		reverse: function(location, scale, cb, context) {
			Util.getJSON(this.options.serviceUrl + encodeURIComponent(location.lng) + ',' + encodeURIComponent(location.lat) + '.json', {
				access_token: this._accessToken,
			}, function(data) {
				var results = [],
				loc,
				latLng,
				latLngBounds;
				if (data.features && data.features.length) {
					for (var i = 0; i <= data.features.length - 1; i++) {
						loc = data.features[i];
						latLng = L.latLng(loc.center.reverse());
						if(loc.hasOwnProperty('bbox'))
						{
							latLngBounds = L.latLngBounds(L.latLng(loc.bbox.slice(0, 2).reverse()), L.latLng(loc.bbox.slice(2, 4).reverse()));
						}
						else
						{
							latLngBounds = L.latLngBounds(latLng, latLng);
						}
						results[i] = {
							name: loc.place_name,
							bbox: latLngBounds,
							center: latLng
						};
					}
				}

				cb.call(context, results);
			});
		}
	}),

	factory: function(accessToken, options) {
		return new L.Control.Geocoder.Mapbox(accessToken, options);
	}
};