You can access premium and curated content hosted by Esri by authenticating with OAuth credentials.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Access premium content</title>
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<!-- ArcGIS REST JS used for user authentication. -->
<script src="https://unpkg.com/@esri/arcgis-rest-request@4/dist/bundled/request.umd.js"></script>
<!-- Load Leaflet from CDN -->
<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@3.0.19/dist/esri-leaflet.js"></script>
<script src="https://unpkg.com/esri-leaflet-vector@4.3.2/dist/esri-leaflet-vector.js"></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>
<div id="map"></div>
<script type="module">
/* Use for user authentication */
const session = await arcgisRest.ArcGISIdentityManager.beginOAuth2({
clientId: "YOUR_CLIENT_ID", // Your client ID from OAuth credentials
redirectUri: "YOUR_REDIRECT_URI", // The redirect URL registered in your OAuth credentials
portal: "https://www.arcgis.com/sharing/rest" // Your portal URL
});
const accessToken = session.token;
const map = L.map("map", { minZoom: 2 }).setView([34.045, -118.195], 13);
const basemapEnum = "arcgis/streets-night";
L.esri.Vector.vectorBasemapLayer(basemapEnum, {
token: accessToken
}).addTo(map);
L.esri.dynamicMapLayer({
url: "https://traffic.arcgis.com/arcgis/rest/services/World/Traffic/MapServer",
token: accessToken
}).addTo(map);
</script>
</body>
</html>