Get service metadata

Retrieve service metadata such as metadata such as name, bounding box and capabilities. To learn more about using the L.esri.FeatureLayer class, visit the API reference.
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<html>
  <head>
    <meta charset="utf-8" />
    <title>Get service metadata</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@3.0.14/dist/esri-leaflet.js"></script>
    <!-- Load Esri Leaflet Vector from CDN -->
    <script src="https://unpkg.com/esri-leaflet-vector@4.2.7/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>
    <style>
      #info {
        position: absolute;
        top: 10px;
        right: 10px;
        z-index: 1000;
        background: white;
        padding: 1em;
      }
    </style>
    <div id="map"></div>
    <div id="info" class="leaflet-bar"></div>
    <script>
      const accessToken = "YOUR_ACCESS_TOKEN";

      const map = L.map("map").setView([37.837, -122.479], 8);

      L.esri.Vector.vectorBasemapLayer("arcgis/streets-relief", {
        token: accessToken
      }).addTo(map);

      const earthquakes = L.esri
        .featureLayer({
          url: "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Earthquakes_Since1970/MapServer/0"
        })
        .addTo(map);

      earthquakes.metadata(function (error, metadata) {
        if (error) {
          return;
        }

        let htmlContent = "<ul>";
        htmlContent += "<li>Name: " + metadata.name + "</li>";
        htmlContent += "<li>Geometry Type: " + metadata.geometryType + "</li>";
        htmlContent += "<li>Supported Query Formats: " + metadata.supportedQueryFormats + "</li>";

        document.getElementById("info").innerHTML = htmlContent;
      });
    </script>
  </body>
</html>