node-geocoder/dist/lib/geocoder/mapquestgeocoder.js

Node Geocoder, node geocoding library, supports google maps, mapquest, open street map, tom tom, promise

"use strict";
var querystring = require('querystring'), util = require('util'), AbstractGeocoder = require('./abstractgeocoder');
/**
 * Constructor
 */
var MapQuestGeocoder = function MapQuestGeocoder(httpAdapter, apiKey) {
    MapQuestGeocoder.super_.call(this, httpAdapter);
    if (!apiKey || apiKey == 'undefined') {
        throw new Error('MapQuestGeocoder needs an apiKey');
    }
    this.apiKey = apiKey;
};
util.inherits(MapQuestGeocoder, AbstractGeocoder);
MapQuestGeocoder.prototype._endpoint = 'https://www.mapquestapi.com/geocoding/v1';
/**
* Geocode
* @param <string>   value    Value to geocode (Address)
* @param <function> callback Callback method
*/
MapQuestGeocoder.prototype._geocode = function (value, callback) {
    var params = { 'key': querystring.unescape(this.apiKey) };
    if (typeof value === 'object') {
        if (value.address) {
            params.street = value.address;
        }
        if (value.country) {
            params.country = value.country;
        }
        if (value.zipcode) {
            params.postalCode = value.zipcode;
        }
        if (value.city) {
            params.city = value.city;
        }
    }
    else {
        params.location = value;
    }
    var _this = this;
    this.httpAdapter.get(this._endpoint + '/address', params, function (err, result) {
        if (err) {
            return callback(err);
        }
        else {
            if (result.info.statuscode !== 0) {
                return callback(new Error('Status is ' + result.info.statuscode + ' ' + result.info.messages[0]), { raw: result });
            }
            var results = [];
            if (result.results && result.results.length) {
                var locations = result.results[0].locations;
                for (var i = 0; i < locations.length; i++) {
                    results.push(_this._formatResult(locations[i]));
                }
            }
            results.raw = result;
            callback(false, results);
        }
    });
};
MapQuestGeocoder.prototype._formatResult = function (result) {
    return {
        formattedAddress: [result.street, result.adminArea5, (result.adminArea3 + ' ' + result.postalCode).trim(), result.adminArea1].join(', '),
        'latitude': result.latLng.lat,
        'longitude': result.latLng.lng,
        'country': null,
        'city': result.adminArea5,
        'stateCode': result.adminArea3,
        'zipcode': result.postalCode,
        'streetName': result.street,
        'streetNumber': null,
        'countryCode': result.adminArea1
    };
};
/**
* Reverse geocoding
* @param {lat:<number>,lon:<number>}  lat: Latitude, lon: Longitude
* @param <function> callback Callback method
*/
MapQuestGeocoder.prototype._reverse = function (query, callback) {
    var lat = query.lat;
    var lng = query.lon;
    var _this = this;
    this.httpAdapter.get(this._endpoint + '/reverse', { 'location': lat + ',' + lng, 'key': querystring.unescape(this.apiKey) }, function (err, result) {
        if (err) {
            return callback(err);
        }
        else {
            var results = [];
            var locations = result.results[0].locations;
            for (var i = 0; i < locations.length; i++) {
                results.push(_this._formatResult(locations[i]));
            }
            results.raw = result;
            callback(false, results);
        }
    });
};
module.exports = MapQuestGeocoder;