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

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

"use strict";
var util = require('util'), net = require('net'), AbstractGeocoder = require('./abstractgeocoder');
/**
 * Constructor
 */
var DataScienceToolkitGeocoder = function DataScienceToolkitGeocoder(httpAdapter, options) {
    this.options = ['host'];
    this.supportIPv4 = true;
    DataScienceToolkitGeocoder.super_.call(this, httpAdapter, options);
};
util.inherits(DataScienceToolkitGeocoder, AbstractGeocoder);
/**
* Build DSTK endpoint, allows for local DSTK installs
* @param <string>   value    Value to geocode (Address or IPv4)
*/
DataScienceToolkitGeocoder.prototype._endpoint = function (value) {
    var ep = {};
    var host = 'www.datasciencetoolkit.org';
    if (this.options.host) {
        host = this.options.host;
    }
    ep.ipv4Endpoint = 'http://' + host + '/ip2coordinates/';
    ep.street2coordinatesEndpoint = 'http://' + host + '/street2coordinates/';
    return net.isIPv4(value) ? ep.ipv4Endpoint : ep.street2coordinatesEndpoint;
};
/**
* Geocode
* @param <string>   value    Value to geocode (Address or IPv4)
* @param <function> callback Callback method
*/
DataScienceToolkitGeocoder.prototype._geocode = function (value, callback) {
    var ep = this._endpoint(value);
    this.httpAdapter.get(ep + value, {}, function (err, result) {
        if (err) {
            return callback(err);
        }
        else {
            result = result[value];
            if (!result) {
                return callback(new Error('Could not geocode "' + value + '".'));
            }
            var results = [];
            results.push({
                'latitude': result.latitude,
                'longitude': result.longitude,
                'country': result.country_name,
                'city': result.city || result.locality,
                'state': result.state || result.region,
                'zipcode': result.postal_code,
                'streetName': result.street_name,
                'streetNumber': result.street_number,
                'countryCode': result.country_code
            });
            results.raw = result;
            callback(false, results);
        }
    });
};
module.exports = DataScienceToolkitGeocoder;