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A lightweight set of tools for working with ArcGIS services in Leaflet. 🚀
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README.md

Esri Leaflet

npm version build status apache licensed jsDelivr Hits

Leaflet plugins for working with a handful of the most popular ArcGIS Service types. This includes Esri basemaps and feature services, as well as tiled map, dynamic map and image services.

This project is maintained with ❤️ by folks on multiple teams at Esri, but we provide no guarantee of individual features, nor a traditional product lifecycle to support planning.

The goal of this project is not to replace the ArcGIS API for JavaScript but rather to provide small components for only some aspects of the ArcGIS platform for developers who prefer to build mapping applications with Leaflet.

We are proud to facilitate a project which requires participation from our diverse user community in order to thrive and we welcome contributions from those just getting their feet wet in open-source.

Support for Geocoding services and Geoprocessing services, as well as service defined rendering are available as well (via additional plugins).

If you'd like to display Esri services in any Leaflet application, we ask that you adhere to our Terms of Use and attribution requirements.

Table of Contents

Demos

We've shared lots of sample code showing off many of the features of Esri Leaflet.

http://esri.github.io/esri-leaflet/examples/

Example

The easiest way to get started is to load Esri Leaflet via CDN. Here is an example you can copy/paste into your own .html file.

App

<!DOCTYPE html>
<html>
  <head>
    <!-- Load Leaflet from CDN -->
    <link rel="stylesheet" href="https://unpkg.com/leaflet/dist/leaflet.css"/>
    <script src="https://unpkg.com/leaflet/dist/leaflet.js"></script>

    <!-- Load Esri Leaflet from CDN -->
    <script src="https://unpkg.com/esri-leaflet/dist/esri-leaflet.js"></script>

    <style>
      html, body, #map {
        margin:0; padding:0;  width : 100%; height : 100%;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <script>
      var map = L.map('map').setView([45.528, -122.680], 13);
      L.esri.basemapLayer("Gray").addTo(map);

      var parks = L.esri.featureLayer({
        url: "https://services.arcgis.com/rOo16HdIMeOBI4Mb/arcgis/rest/services/Portland_Parks/FeatureServer/0",
        style: function () {
          return { color: "#70ca49", weight: 2 };
        }
      }).addTo(map);

      var popupTemplate = "<h3>{NAME}</h3>{ACRES} Acres<br><small>Property ID: {PROPERTYID}<small>";

      parks.bindPopup(function(e){
        return L.Util.template(popupTemplate, e.feature.properties)
      });
    </script>
  </body>
</html>

API Reference

The source code for our documentation site can be found here. If you notice a typo or other problem, please let us know!

Additional Plugins

Many folks have written plugins to customize and extend Leaflet.

http://leafletjs.com/plugins.html

You can also pick and choose additional Esri Leaflet plugins.

http://esri.github.io/esri-leaflet/plugins/

Frequently Asked Questions

Issues

If something isn't working the way you expected, please take a look at previously logged issues that resolve common problems first. Have you found a new bug? Want to request a new feature? We'd love to hear from you. Please let us know by submitting an issue.

If you're looking for help you can also find answers on GIS StackExchange and GeoNet.

Going Deeper

Development Instructions

If you'd like to inspect and modify the source of Esri Leaflet, follow the instructions below to set up a local development environment.

  1. Fork and clone Esri Leaflet
  2. cd into the esri-leaflet folder
  3. Install the package.json dependencies by running npm install
  4. Run npm start from the command line. This will compile minified source in a brand new dist directory, launch a tiny webserver and begin watching the raw source for changes.
  5. Run npm test to make sure you haven't introduced a new 'feature' accidentally.
  6. Make your changes and create a pull request

Dependencies

  • Esri Leaflet 1.x (available on CDN) can be used in apps alongside:

  • Esri Leaflet 2.x (available on CDN) can be used in apps alongside:

The master branch of this repository is only compatible with Leaflet 1.x.

Versioning

For transparency into the release cycle and in striving to maintain backward compatibility, Esri Leaflet is maintained under Semantic Versioning guidelines and will adhere to these rules whenever possible.

For more information on SemVer, please visit http://semver.org/.

Contributing

Esri welcomes contributions from anyone and everyone. Please see our guidelines for contributing.

Terms

For most public apps, a free Developer Plan is sufficient. If you're going to generate revenue, you'll need to purchase either a paid Developer Plan or one of the products below:

If you display an ArcGIS Online service in any Leaflet application, we require that you include Esri attribution and recognize data providers. Using this plugin, it couldn't be easier to follow the terms. Just select your basemap and the appropriate credits will be displayed dynamically in Leaflet's own Attribution control as users pan/zoom.

L.esri.basemapLayer('Topographic').addTo(map);

attribution

If you need more than 1 million map transactions per month, please let us know.

Credit

License

Copyright © 2014-2019 Esri

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

A copy of the license is available in the repository's LICENSE file.

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