Esri Leaflet

Identifying Features

Identifying features on a Dynamic Map Layer on click by querying the service. Click a feature to identify it. More information about Map Services can be found in the L.esri.Layers.DynamicMapLayer documentation.

No Features Selected

<html>
<head>
  <meta charset=utf-8 />
  <title>Identifying Features</title>
  <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />

  <!-- Load Leaflet from CDN-->
  <link rel="stylesheet" href="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.css" />
  <script src="//cdn.jsdelivr.net/leaflet/0.7.3/leaflet.js"></script>

  <!-- Load Esri Leaflet from CDN -->
  <script src="//cdn.jsdelivr.net/leaflet.esri/1.0.3/esri-leaflet.js"></script>

  <style>
    body { margin:0; padding:0; }
    #map { position: absolute; top:0; bottom:0; right:0; left:0; }
  </style>
</head>
<body>

<style>
  #selectedFeatures {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    background: white;
    padding: 1em;
  }
</style>

<div id="map"></div>
<div id="selectedFeatures" class="leaflet-bar">No Features Selected</div>
<script>
  var map = L.map('map').setView([34.025, -116.203], 9);

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

  var federalLands = L.esri.dynamicMapLayer({
    url: 'http://maps1.arcgisonline.com/ArcGIS/rest/services/USA_Federal_Lands/MapServer',
    opacity: 0.5,
    useCors: false
  }).addTo(map);

  var identifiedFeature;
  var pane = document.getElementById('selectedFeatures');

  map.on('click', function (e) {
    if(identifiedFeature){
      map.removeLayer(identifiedFeature);
      pane.innerHTML = 'Loading';
    }
    federalLands.identify().on(map).at(e.latlng).run(function(error, featureCollection){
      if (featureCollection.features.length > 0){
        identifiedFeature = L.geoJson(featureCollection.features[0], {
          style: function(){
            return {
              color: '#5C7DB8',
              weight: 2
            };
          }
        }).addTo(map);
        pane.innerHTML = featureCollection.features[0].properties.NAME1;
      }
    });
  });
</script>

</body>
</html>

Edit this sample on GitHub

Esri Leaflet is a project from the Esri PDX R&D Center and the Esri Community