Editing feature layers
This sample demonstrates a bare-bones approach for passing edits to a feature service.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Editing feature layers</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<!-- 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@2.5.3/dist/esri-leaflet.js"
integrity="sha512-K0Vddb4QdnVOAuPJBHkgrua+/A9Moyv8AQEWi0xndQ+fqbRfAFd47z4A9u1AW/spLO0gEaiE1z98PK1gl5mC5Q=="
crossorigin=""></script>
<!-- Load Esri Leaflet Renderers plugin to use feature service symbology -->
<script src="https://unpkg.com/esri-leaflet-renderers@2.1.2"
integrity="sha512-/McnqdlwYvfeOEWqoniEagFRQnLi/TNbkHe4EJypmZI02LBT7vBU/+PZ5W3FSsFFlRbnMCsJvnbp5MX8XOBrnQ=="
crossorigin=""></script>
<style>
body { margin:0; padding:0; }
#map { position: absolute; top:0; bottom:0; right:0; left:0; }
</style>
</head>
<body>
<!-- Leaflet Draw -->
<style>
#info-pane {
position: absolute;
top: 10px;
right: 10px;
z-index: 400;
padding: 1em;
background: white;
text-align: right;
max-width: 250px;
}
#form {
display: none;
}
</style>
<div id="map"></div>
<div id="info-pane" class="leaflet-bar">
<label>
Click on the map to post an edit.<br>
Click on a marker to remove it.
<select id="symbols">
<option value="Air Control Point">Air Control Point</option>
<option value="Decision Point">Decision Point</option>
<option value="Unmanned Aerial System (UAS UA)">Unmanned Aerial System (UAS UA)</option>
</select>
</label>
</div>
<script>
// create the map
var map = L.map('map').setView([65, -18.5], 6);
L.esri.basemapLayer('Physical').addTo(map);
// add our feature layer to the map
const militaryOps = L.esri.featureLayer({
url: 'https://sampleserver6.arcgisonline.com/arcgis/rest/services/Military/FeatureServer/3'
}).addTo(map);
var symbols = document.querySelector('#symbols');
// when the map is clicked, add a new feature
map.on('click', function (e) {
// convert to GeoJSON
const feat = L.marker(e.latlng).toGeoJSON();
// set the attribute value that controls the feature service symbology
feat.properties.symbolname = symbols.value;
// make a request to add the new feature to the feature service.
militaryOps.addFeature(feat, function (err, response) {
if (err) {
return;
}
console.log(response);
});
});
// when a marker is clicked, remove the feature from the service, using its id
militaryOps.on('click', function (e) {
militaryOps.deleteFeature(e.layer.feature.id, function (err, response) {
if (err) {
return;
}
console.log(response);
});
// make sure map click event isn't fired.
L.DomEvent.stopPropagation(e);
});
</script>
</body>
</html>