Esri Leaflet

Add a Stream Service

This demo displays a real-time data feed from a service published using the GeoEvent extension for ArcGIS Server using a WebSocket. In addition to Esri Leaflet, it relies on Esri Leaflet Stream.

<html>
<head>
  <meta charset=utf-8 />
  <title>Add a Stream Service</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@1.1.0/dist/leaflet.css"
    integrity="sha512-wcw6ts8Anuw10Mzh9Ytw4pylW8+NAD4ch3lqm9lzAsTxg0GFeJgoAtxuCLREZSC5lUXdVyo/7yfsqFjQ4S+aKw=="
    crossorigin=""/>
  <script src="https://unpkg.com/leaflet@1.1.0/dist/leaflet-src.js"
    integrity="sha384-TWB9xRHTlLQmqAngHwD7usGcf4akGf0JP6aHwlgilpmOu2UuBq5aWLsDAh39iSn1"
    crossorigin=""></script>


  <!-- Load Esri Leaflet from CDN -->
  <script src="https://unpkg.com/esri-leaflet@2.0.8"
    integrity="sha384-ze7rgny7/YGFxBlVgTBdOABNWe5V9BYjju/qwqJhCU8XJHtuEnRlbUpN5lXyY706"
    crossorigin=""></script>


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

<script src="https://unpkg.com/esri-leaflet-stream@1.0.0/dist/esri-leaflet-stream.min.js"></script>

<div id="map"></div>

<script type='text/javascript'>
  var map = L.map('map').setView([47.59242, -122.31727], 12);

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

  function createRandomFill(){
    return '#'+(Math.random()*0xFFFFFF<<0).toString(16);
  }

  var buses = L.esri.streamFeatureLayer({
    url: 'https://geoeventsample3.esri.com:6443/arcgis/rest/services/SeattleBus/StreamServer',
    pointToLayer: function (geojson, latlng) {
      return L.circleMarker(latlng, {
        fillColor: createRandomFill(),
        fillOpacity: 0.8,
        color: "#cccccc",
        weight: 2
      });
    },
  }).addTo(map);

</script>

</body>
</html>