Learn how to add features from feature layers to a map .
A feature layer is a dataset in a hosted feature service . Each feature layer contains features with a single geometry type (point, line, or polygon), and a set of attributes . You can access and display features by making query requests to the feature service and displaying them in a map.
In this tutorial, you access and display three different hosted feature layers .
The feature layers are:
You need an ArcGIS account to access the developer dashboard and create an API key .
To get started, either complete the Display a map tutorial or use this pen . To access location services , you need an API key or OAuth 2.0 access token .
Go to your dashboard to get an API key. The API key must be scoped to access the services used in this tutorial.
In CodePen , update apiKey to use your key.
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<!DOCTYPE html >
< html >
< head >
< meta charset = "utf-8" >
< meta name = "viewport" content = "initial-scale=1,maximum-scale=1,user-scalable=no" />
< title > Esri Leaflet </ title >
<!-- Load Leaflet from CDN -->
< link rel = "stylesheet" href = "https://unpkg.com/leaflet@1.7.1/dist/leaflet.css"
integrity = "sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin = "" />
< script src = "https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"
integrity = "sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin = "" > </ script >
<!-- Load Esri Leaflet from CDN -->
< script src = "https://unpkg.com/esri-leaflet@3.0.0/dist/esri-leaflet.js" > </ script >
< script src = "https://unpkg.com/esri-leaflet-vector@3.0.0/dist/esri-leaflet-vector.js" > </ script >
< style >
body { margin : 0 ; padding : 0 ; }
#map {
position : absolute;
top : 0 ;
bottom : 0 ;
right : 0 ;
left : 0 ;
font-family : Arial, Helvetica, sans-serif;
font-size : 14px ;
color : #323232 ;
}
</ style >
</ head >
< body >
< div id = "map" > </ div >
< script >
const apiKey = "YOUR_API_KEY" ;
const basemapEnum = "ArcGIS:Streets" ;
const map = L.map( 'map' , {
minZoom : 2
}).setView([ 34.02 ,- 118.805 ], 13 );
L.esri.Vector.vectorBasemapLayer(basemapEnum, {
apiKey : apiKey
}).addTo(map);
</ script >
</ body >
</ html >
Add the following code to add three feature layers to the map: Trailheads, Trails, and Parks and Open Spaces.
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<!DOCTYPE html >
< html >
< head >
< meta charset = "utf-8" >
< meta name = "viewport" content = "initial-scale=1,maximum-scale=1,user-scalable=no" />
< title > Esri Leaflet </ title >
<!-- Load Leaflet from CDN -->
< link rel = "stylesheet" href = "https://unpkg.com/leaflet@1.7.1/dist/leaflet.css"
integrity = "sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin = "" />
< script src = "https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"
integrity = "sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin = "" > </ script >
<!-- Load Esri Leaflet from CDN -->
< script src = "https://unpkg.com/esri-leaflet@3.0.0/dist/esri-leaflet.js" > </ script >
< script src = "https://unpkg.com/esri-leaflet-vector@3.0.0/dist/esri-leaflet-vector.js" > </ script >
< style >
body { margin : 0 ; padding : 0 ; }
#map {
position : absolute;
top : 0 ;
bottom : 0 ;
right : 0 ;
left : 0 ;
font-family : Arial, Helvetica, sans-serif;
font-size : 14px ;
color : #323232 ;
}
</ style >
</ head >
< body >
< div id = "map" > </ div >
< script >
const apiKey = "YOUR_API_KEY" ;
const basemapEnum = "ArcGIS:Streets" ;
const map = L.map( 'map' , {
minZoom : 2
}).setView([ 34.02 ,- 118.805 ], 13 );
L.esri.Vector.vectorBasemapLayer(basemapEnum, {
apiKey : apiKey
}).addTo(map);
// Trailheads feature layer (points)
var trailheads = L.esri.featureLayer({
url : "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Trailheads_Styled/FeatureServer/0"
}).addTo(map);
// Trails feature layer (lines)
var tails = L.esri.featureLayer({
url : "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Trails_Styled/FeatureServer/0"
}).addTo(map);
// Parks and open spaces (polygons)
var parks = L.esri.featureLayer({
url : "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/Parks_and_Open_Space_Styled/FeatureServer/0"
}).addTo(map);
</ script >
</ body >
</ html >
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In CodePen , run your code to display the map.
The map should display all three feature layers in the map
Learn how to use additional ArcGIS location services in these tutorials:
