Node library for geocoding and reverse geocoding. Can be used as a nodejs library
npm install node-geocoder
var NodeGeocoder = require('node-geocoder');
var options = {
provider: 'google',
// Optional depending on the providers
httpAdapter: 'https', // Default
apiKey: 'YOUR_API_KEY', // for Mapquest, OpenCage, Google Premier
formatter: null // 'gpx', 'string', ...
};
var geocoder = NodeGeocoder(options);
// Using callback
geocoder.geocode('29 champs elysée paris', function(err, res) {
console.log(res);
});
// Or using Promise
geocoder.geocode('29 champs elysée paris')
.then(function(res) {
console.log(res);
})
.catch(function(err) {
console.log(err);
});
// output :
[{
latitude: 48.8698679,
longitude: 2.3072976,
country: 'France',
countryCode: 'FR',
city: 'Paris',
zipcode: '75008',
streetName: 'Champs-Élysées',
streetNumber: '29',
administrativeLevels: {
level1long: 'Île-de-France',
level1short: 'IDF',
level2long: 'Paris',
level2short: '75'
},
provider: 'google'
}]
geocoder.geocode({address: '29 champs elysée', country: 'France', zipcode: '75008'}, function(err, res) {
console.log(res);
});
// OpenCage advanced usage example
geocoder.geocode({address: '29 champs elysée', countryCode: 'fr', minConfidence: 0.5, limit: 5}, function(err, res) {
console.log(res);
});
// Reverse example
// Using callback
geocoder.reverse({lat:45.767, lon:4.833}, function(err, res) {
console.log(res);
});
// Or using Promise
geocoder.reverse({lat:45.767, lon:4.833})
.then(function(res) {
console.log(res);
})
.catch(function(err) {
console.log(err);
});
// Batch geocode
geocoder.batchGeocode(['13 rue sainte catherine', 'another adress'], function (err, results) {
// Return an array of type {error: false, value: []}
console.log(results) ;
});
// Set specific http request headers:
var HttpsAdapter = require('node-geocoder/lib/httpadapter/httpsadapter.js')
var httpAdapter = new HttpsAdapter(null, {
headers: {
'user-agent': 'My application <email@domain.com>',
'X-Specific-Header': 'Specific value'
}
});
var geocoder = NodeGeocoder({
provider: 'google',
httpAdapter: httpAdapter
});
google
: GoogleGeocoder. Supports address geocoding and reverse geocoding. Useoptions.clientId
andoptions.apiKey
(privateKey) for business licence. You can also useoptions.language
andoptions.region
to specify language and region, respectively. Note that 'https' is required when using an apiKeyhere
: HereGeocoder. Supports address geocoding and reverse geocoding. You must specifyoptions.appId
andoptions.appCode
with your license keys. You can also useoptions.language
,options.politicalView
(read about political views here),options.country
, andoptions.state
.freegeoip
: FreegeoipGeocoder. Supports IP geocodingdatasciencetoolkit
: DataScienceToolkitGeocoder. Supports IPv4 geocoding and address geocoding. Useoptions.host
to specify a local instanceopenstreetmap
: OpenStreetMapGeocoder. Supports address geocoding and reverse geocoding. You can useoptions.language
andoptions.email
to specify a language and a contact email address.- For
geocode
, you can use an object as value, specifying one or several parameters from https://wiki.openstreetmap.org/wiki/Nominatim#Parameters - For
reverse
, you can use additional parameters from https://wiki.openstreetmap.org/wiki/Nominatim#Parameters_2 - You should specify a specific
user-agent
orreferrer
header field as required by https://wiki.openstreetmap.org/wiki/Nominatim_usage_policy - Set
options.osmServer
to use custom nominatim server. Example: you can setup local nominatim server from instructions at this page and setoptions.osmServer: http://localhost:8000
to use local server.
- For
locationiq
: LocationIQGeocoder. Supports address geocoding and reverse geocoding just like openstreetmap but does require only a locationiq api key to be set.- For
geocode
you can use simpleq
parameter or an object containing th edifferent parameters defined here: http://locationiq.org/#docs - For
reverse
, you can pass over{lat, lon}
and additional parameters defined in http://locationiq.org/#docs - No need to specify referer or email addresses, just locationiq api key, note that there are rate limits!
- For
mapquest
: MapQuestGeocoder. Supports address geocoding and reverse geocoding. Needs an apiKeyopenmapquest
: Open MapQuestGeocoder (based on OpenStreetMapGeocoder). Supports address geocoding and reverse geocoding. Needs an apiKeyagol
: ArcGis Online Geocoding service. Supports geocoding and reverse. Requires a client_id & client_secret and 'https' http adaptertomtom
: TomTomGeocoder. Supports address geocoding. You need to specifyoptions.apiKey
virtualearth
: VirtualEarthGeocoder (Bing maps). Supports address geocoding. You need to specifyoptions.apiKey
nominatimmapquest
: Same geocoder asopenstreetmap
, but queries the MapQuest servers. You need to specifyoptions.apiKey
opencage
: OpenCage Geocoder. Uses multiple open sources. Supports address and reverse geocoding. You need to specifyoptions.apiKey
smartyStreet
: Smarty street geocoder (US only), you need to specifyoptions.auth_id
andoptions.auth_token
geocodio
: Geocodio, Supports address geocoding and reverse geocoding (US only)yandex
: Yandex support address geocoding, you can useoptions.language
to specify languageteleport
: Teleport supports city and urban area forward and reverse geocoding; for more information, see Teleport API documentationopendatafrance
: OpendataFranceGeocoder supports forward and reverse geocoding in France; for more information, see OpendataFrance API documentationpickpoint
: PickPoint Geocoder. Supports address geocoding and reverse geocoding. You need to specifyoptions.apiKey
obtained at PickPoint.https
is required.- As parameter for
geocode
function you can use a string representing an address like "13 rue sainte catherine" or an object with parameters described in Forward Geocoding Reference. - For
geocode
function you should use an object where{lat, lon}
are required parameters. Additional parameters likezoom
are available, see details in Reverse Geocoding Reference.
- As parameter for
https
: This adapter uses the Https nodejs library (default)http
: This adapter uses the Http nodejs libraryrequest
: This adapter uses the request nodejs library
You can specify request timeout using paramater options.timeout
gpx
: format result using GPX formatstring
: format result to an String array (you need to specifyoptions.formatterPattern
key)%P
country%p
country code%n
street number%S
street name%z
zip code%T
State%t
state code
You can try node-geocoder here http://node-geocoder.herokuapp.com/
node-geocoder-cli
You can use node-geocoder-cli to geocode in shell
You can add new geocoders by implementing the two methods geocode
and reverse
:
var geocoder = {
geocode: function(value, callback) { ... },
reverse: function(query, callback) { var lat = query.lat; var lon = query.lon; ... }
}
You can also add formatter implementing the following interface
var formatter = {
format: function(data) { return formattedData; },
}
You can improve this project by adding new geocoders or http adapters.
To run tests just npm test
.
To check code style just run npm run lint
.