Add and delete data in a hosted feature layer. To learn more about feature layers and feature services, go to Hosted feature layers in the Mapping APIs and location services guide.
<html>
<head>
<meta charset="utf-8" />
<title>Add and delete features</title>
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no" />
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" crossorigin="" />
<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" crossorigin=""></script>
<!-- Load Esri Leaflet from CDN -->
<script src="https://unpkg.com/esri-leaflet@3.0.12/dist/esri-leaflet.js"></script>
<!-- Load Esri Leaflet Renderers from CDN -->
<script src="https://unpkg.com/esri-leaflet-renderers@3.0.0" crossorigin=""></script>
<!-- Load Esri Leaflet Vector from CDN -->
<script src="https://unpkg.com/esri-leaflet-vector@4.2.3/dist/esri-leaflet-vector.js" crossorigin=""></script>
<style>
html,
body,
#map {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
color: #323232;
}
</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>
const apiKey = "YOUR_API_KEY";
// create the map
const map = L.map("map").setView([65, -18.5], 6);
L.esri.Vector.vectorBasemapLayer("arcgis/charted-territory", {
apikey: apiKey
}).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);
const 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>