Change the basemap style (v1)

Learn how to change a basemap style in a map with the basemap styles service (v1).

The basemap styles service (v1) provides a number basemap layer styles such as topography, streets, and imagery that you can use in maps.

In this tutorial, you use a <select> dropdown menu with ol-mapbox-style to toggle between a number of different basemap layer styles.

Prerequisites

You need an ArcGIS Developer or ArcGIS Online account to access the developer dashboard and create an API key.

Steps

Create a new pen

To get started, either complete the Display a map tutorial or .

Set the API key

To access location services, you need an API key or OAuth 2.0 access token. To learn how to create and scope your key, visit the Create an API key tutorial.

Go to your dashboard to get an API key. The API key must be scoped to access the services used in this tutorial.

In CodePen, update apiKey to use your key.

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const apiKey = "YOUR_API_KEY";
const basemapId = "ArcGIS:Streets";
const basemapURL = "https://basemaps-api.arcgis.com/arcgis/rest/services/styles/" + basemapId + "?type=style&token=" + apiKey;
olms.apply(map, basemapURL);

Remove basemap references

Remove the basemapId, basemapURL, and the olms function.

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    <script>

      const map = new ol.Map({ target: "map" });

      map.setView(
        new ol.View({
          center: ol.proj.fromLonLat([-118.805, 34.027]),
          zoom: 12
        })
      );

      const apiKey = "YOUR_API_KEY";

      const basemapId = "arcgis/streets";

      const basemapURL = `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapId}?token=${apiKey}`;

      olms.apply(map, basemapURL);

    </script>
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Add a basemap selector

OpenLayers does not have a basemap layer switching widget, so you will use the a plain HTML <select> element.

In the <head> tag, add CSS that will position the <select> menu wrapper element in the upper right corner and provide styling.

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    <style>
      html,
      body,
      #map {
        padding: 0;
        margin: 0;
        height: 100%;
        width: 100%;
        font-family: Arial, Helvetica, sans-serif;
        font-size: 14px;
        color: #323232;
      }

      #basemaps-wrapper {
        position: absolute;
        top: 20px;
        right: 20px;
      }
      #basemaps {
        padding: 4px 8px;
        font-size: 16px;
      }

    </style>
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In the <body> element, add the wrapper tag with an id of basemaps-wrapper.

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

    <div id="basemaps-wrapper">

    </div>
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In the wrapper element, add a <select> element with basemap layer enumerations and labels.

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    <div id="basemaps-wrapper">

      <select id="basemaps">
        <option value="ArcGIS:Streets">ArcGIS:Streets</option>
        <option value="ArcGIS:Navigation">ArcGIS:Navigation</option>
        <option value="ArcGIS:Topographic">ArcGIS:Topographic</option>
        <option value="ArcGIS:LightGray">ArcGIS:LightGray</option>
        <option value="ArcGIS:DarkGray">ArcGIS:DarkGray</option>
        <option value="ArcGIS:StreetsRelief">ArcGIS:StreetsRelief</option>
        <option value="ArcGIS:Imagery:Standard">ArcGIS:Imagery:Standard</option>
        <option value="ArcGIS:ChartedTerritory">ArcGIS:ChartedTerritory</option>
        <option value="ArcGIS:ColoredPencil">ArcGIS:ColoredPencil</option>
        <option value="ArcGIS:Nova">ArcGIS:Nova</option>
        <option value="ArcGIS:Midcentury">ArcGIS:Midcentury</option>
        <option value="OSM:Standard">OSM:Standard</option>
        <option value="OSM:Streets">OSM:Streets</option>
      </select>

    </div>
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Set the initial basemap layer

When the page loads, initialize the basemap layer to the first option in the menu.

Create a function called url that computes the style service URL for a basemap layer.

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    <script>
      const apiKey = "YOUR_API_KEY";
      const map = new ol.Map({ target: "map" });
      map.setView(
        new ol.View({
          center: ol.proj.fromLonLat([-118.805, 34.027]),
          zoom: 12
        })
      );

      const baseUrl = "https://basemaps-api.arcgis.com/arcgis/rest/services/styles";
      const url = (name) => `${baseUrl}/${name}?type=style&token=${apiKey}`;
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Create a function called setBasemap that will clear existing layers and use olms to instantiate a basemap layer by name.

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      const baseUrl = "https://basemaps-api.arcgis.com/arcgis/rest/services/styles";
      const url = (name) => `${baseUrl}/${name}?type=style&token=${apiKey}`;

      const setBasemap = (name) => {
        // Clear out existing layers.
        map.setLayerGroup(new ol.layer.Group());

        // Instantiate the given basemap layer.
        olms.apply(map, url(name));
      };
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Call setBasemap to initialize the basemap layer to the ArcGIS:Streets enumeration to match the first basemap in the select element.

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      const setBasemap = (name) => {
        // Clear out existing layers.
        map.setLayerGroup(new ol.layer.Group());

        // Instantiate the given basemap layer.
        olms.apply(map, url(name));
      };

      setBasemap("ArcGIS:Streets");
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Set the selected basemap layer

Call setBasemap when the user selects an option in the <select> menu.

Extract the <select> DOM element using document.querySelector.

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      setBasemap("ArcGIS:Streets");

      const basemapsSelectElement = document.querySelector("#basemaps");
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Call setBasemap in response to change events on the <select> element.

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      const basemapsSelectElement = document.querySelector("#basemaps");

      basemapsSelectElement.addEventListener("change", (e) => {
        setBasemap(e.target.value);
      });
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Run the app

In CodePen, run your code to display the map.

Use the layer switcher menu at the top right to select and explore different basemap layer styles.

What's Next?

Learn how to use additional ArcGIS location services in these tutorials:

Change the basemap style (v2)

Switch a basemap style in a map using the basemap styles service v2.

Change the place label language

Switch the language of place labels on a basemap.

Display a custom basemap style

Add a styled vector basemap layer to a map.

Style vector tiles

Change the fill and outline of vector tiles based on their attributes.