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https://github.com/Esri/esri-leaflet

A lightweight set of tools for working with ArcGIS services in Leaflet. :rocket:
https://github.com/Esri/esri-leaflet

arcgis esri esri-leaflet hacktoberfest javascript leaflet-plugins web-development

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A lightweight set of tools for working with ArcGIS services in Leaflet. :rocket:

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README 

        
# Esri Leaflet



[![npm version][npm-img]][npm-url]

[![apache licensed](https://img.shields.io/badge/license-Apache%202.0-orange.svg?style=flat-square)](https://raw.githubusercontent.com/Esri/esri-leaflet/master/LICENSE)

[![jsDelivr Hits](https://data.jsdelivr.com/v1/package/npm/esri-leaflet/badge)](https://www.jsdelivr.com/package/npm/esri-leaflet)



[npm-img]: https://img.shields.io/npm/v/esri-leaflet.svg?style=flat-square

[npm-url]: https://www.npmjs.com/package/esri-leaflet



[Leaflet](http://leafletjs.com/) plugins for working with a handful of the most popular [ArcGIS Service](http://developers.arcgis.com) types. This includes Esri [basemaps](https://developers.arcgis.com/esri-leaflet/samples/showing-a-basemap/) and [feature services](https://developers.arcgis.com/esri-leaflet/samples/simple-feature-layer/), as well as [tiled](https://developers.arcgis.com/esri-leaflet/samples/tile-layer-1/) map, [dynamic](https://developers.arcgis.com/esri-leaflet/samples/simple-dynamic-map-layer/) map and [image](https://developers.arcgis.com/esri-leaflet/samples/simple-image-map-layer/) services.



> This project is maintained with :heart: 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](https://developers.arcgis.com/en/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](http://leafletjs.com/).



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](https://github.com/Esri/esri-leaflet/issues/647) in open-source.



Support for [Geocoding](https://github.com/Esri/esri-leaflet-geocoder) services and [Geoprocessing](https://github.com/jgravois/esri-leaflet-gp) services, as well as service defined [rendering](https://github.com/esri/esri-leaflet-renderers) 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](#terms) and attribution requirements.



## Table of Contents



- [Getting Started](#getting-started)

  - [Quick Start](#quick-start)

  - [Samples, Tutorials, and API Reference](#samples-tutorials-and-api-reference)

  - [Additional Plugins](#additional-plugins)

  - [Frequently Asked Questions](#frequently-asked-questions)

  - [Issues](#issues)

  - [Dependencies](#dependencies)

- [Going Deeper](#going-deeper)

  - [Development Instructions](#development-instructions)

  - [Versioning](#versioning)

  - [Contributing](#contributing)

- [Terms](#terms)

- [Credit](#credit)

- [License](#license)



## Quick Start

The easiest way to get started is to load Esri Leaflet via [CDN](https://unpkg.com/esri-leaflet). Here is an example you can copy/paste into your own `.html` file: [Esri Leaflet Quick Start](https://developers.arcgis.com/esri-leaflet/get-started/)



[![App](https://raw.github.com/Esri/esri-leaflet/master/example.png)](https://developers.arcgis.com/esri-leaflet/samples/)



## [Samples, Tutorials, and API Reference](https://developers.arcgis.com/esri-leaflet/)



[Samples](https://developers.arcgis.com/esri-leaflet/samples/), [tutorials](https://developers.arcgis.com/esri-leaflet/tutorials/), and the [API reference](https://developers.arcgis.com/esri-leaflet/api-reference/) can be found at [developers.arcgis.com/esri-leaflet](https://developers.arcgis.com/esri-leaflet/).



If you notice any issues or would like to propose a change to the documentation, _please_ [let us know by creating an issue in this repository](https://github.com/Esri/esri-leaflet/issues/new?assignees=&labels=Documentation&template=documentation.yml).



## 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.



https://developers.arcgis.com/esri-leaflet/plugins/



## Frequently Asked Questions



* [What are the terms of use for ArcGIS Online services?](#terms)

* [What exactly is Esri Leaflet?  Is it a replacement for Leaflet?](https://github.com/Esri/esri-leaflet/wiki/FAQ#what-is-esri-leaflet)

* [Will Esri Leaflet replace the ArcGIS API for JavaScript?](https://github.com//Esri/esri-leaflet/wiki/FAQ#will-esri-leaflet-replace-the-arcgis-api-for-javascript)

* [What is the benefit of using Esri Leaflet over using Leaflet all by itself?](https://github.com//Esri/esri-leaflet/wiki/FAQ#why-use-esri-leaflet)

* [What are the goals of Esri Leaflet?](https://github.com//Esri/esri-leaflet/wiki/FAQ#what-are-the-goals-of-esri-leaflet)

* [Can I use Esri Leaflet with Leaflet Version 1.0.x?](https://github.com/Esri/esri-leaflet/wiki/FAQ#can-i-use-esri-leaflet-with-leaflet-version-10x)

* [How do you decide what features get included in Esri Leaflet?](https://github.com//Esri/esri-leaflet/wiki/FAQ#how-do-you-decide-what-features-get-included-in-esri-leaflet)

* [I have an idea! What should I do?](https://github.com//Esri/esri-leaflet/wiki/FAQ#i-have-an-idea-what-should-i-do)

* [When will you support "x"?](https://github.com//Esri/esri-leaflet/wiki/FAQ#when-will-you-support-x)

* [Can you implement feature "x"?](https://github.com//Esri/esri-leaflet/wiki/FAQ#can-you-implement-feature-x)

* [I want to contribute. How can I help?](https://github.com//Esri/esri-leaflet/wiki/FAQ#i-want-to-contribute-how-can-i-help)

* [I built something with Esri Leaflet can I show you?](https://github.com//Esri/esri-leaflet/wiki/FAQ#i-built-something-with-esri-leaflet-can-i-show-you)

* [I built a reusable component (layer type, api wrapper, ui control etc...) can I contribute it to Esri Leaflet?](https://github.com//Esri/esri-leaflet/wiki/FAQ#i-built-a-reusable-component-layer-type-api-wrapper-ui-control-etc-can-i-contribute-it-to-esri-leaflet)

* [Which services require authentication?](https://github.com//Esri/esri-leaflet/wiki/FAQ#which-services-require-authentication)

* [What are some good Leaflet Plugins?](https://github.com//Esri/esri-leaflet/wiki/FAQ#what-are-some-good-leaflet-plugins)

* [What browsers does Esri Leaflet support?](https://github.com//Esri/esri-leaflet/wiki/FAQ#what-browsers-does-esri-leaflet-support)

* [What versions of ArcGIS Server does Esri Leaflet support?](https://github.com//Esri/esri-leaflet/wiki/FAQ#what-versions-of-arcgis-server-does-esri-leaflet-support)

* [Upgrading the version of Esri Leaflet used in my app broke everything!](https://github.com//Esri/esri-leaflet/wiki/FAQ#upgrading-the-version-of-esri-leaflet-used-in-my-app-broke-everything)

* [Does Esri Leaflet support IE 'compatibility mode'?](https://github.com//Esri/esri-leaflet/wiki/FAQ#compatibility-mode)

* [I'm into TypeScript, but Esri Leaflet seems to be a vanilla JS thing. Can I find typings somewhere?](https://github.com//Esri/esri-leaflet/wiki/FAQ#typescript-typings)

* [When _exactly_ do I need to use a paid Esri developer account to deploy to production?](https://github.com//Esri/esri-leaflet/wiki/FAQ#deployment-plan)



## Issues



If something isn't working the way you expected, please take a look at [previously logged issues](https://github.com/Esri/esri-leaflet/issues?labels=FAQ&milestone=&page=1&state=closed) 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](https://github.com/Esri/esri-leaflet/issues).



If you're looking for help you can also find answers on [Stack Overflow](https://stackoverflow.com/questions/tagged/esri-oss) and [GeoNet](https://community.esri.com/groups/esri-leaflet/activity).



## 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](https://help.github.com/articles/fork-a-repo)

2. `cd` into the `esri-leaflet` folder

3. Install the [`package.json`](https://github.com/Esri/esri-leaflet/blob/master/package.json#L14-L49) 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](https://help.github.com/articles/creating-a-pull-request)



### Dependencies



* Esri Leaflet [1.x](https://github.com/Esri/esri-leaflet/releases/tag/v1.0.4) (available on [CDN](https://unpkg.com/[email protected])) can be used in apps alongside:

  *  [Leaflet](http://leafletjs.com) version 0.7.x.



* Esri Leaflet [2.x](https://github.com/Esri/esri-leaflet/releases/tag/v2.0.8) (available on [CDN](https://unpkg.com/[email protected])) can be used in apps alongside:

  *  [Leaflet](http://leafletjs.com) version 1.x.



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 .



### Contributing



Esri welcomes contributions from anyone and everyone. Please see our [guidelines for contributing](https://github.com/Esri/esri-leaflet/blob/master/CONTRIBUTING.md).



### Terms



If you're using Esri [content and services](https://developers.arcgis.com/documentation/mapping-apis-and-services/services/), you'll need to license your usage with an API key or an ArcGIS identity. Full details can be found here: [Deployment guidelines](https://developers.arcgis.com/documentation/mapping-apis-and-services/deployment/).



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](http://leafletjs.com/reference.html#control-attribution) as users pan/zoom.



```js

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

```



![attribution](https://raw.github.com/Esri/esri-leaflet/master/attribution.png)



* [Esri Attribution Requirements](https://developers.arcgis.com/documentation/mapping-apis-and-services/deployment/basemap-attribution/)

* [Licensing & Attribution](https://developers.arcgis.com/documentation/mapping-apis-and-services/deployment/)



### Credit



* `L.esri.DynamicMapLayer` originally used code from [AGS.Layer.Dynamic.js](https://github.com/sanborn/leaflet-ags/blob/master/src/AGS.Layer.Dynamic.js)

* `L.esri.TiledMapLayer` adapts some code from [arcgis-level-fixer](https://github.com/gisinc/arcgis-level-fixer)



### 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](./LICENSE) file.