Get local data

Learn how to access local data, such as spending trends, for the United States with the GeoEnrichment service.

The GeoEnrichment service provides detailed local data for specific countries. Each individual data field is represented by an analysis variable that are organized into data categories such as spending and market behaviors such as 2022 Educational Attainment or 2022 Seen Video Ad at Gas Station Last 30 Days. The data available vary by country and by data provider.

In this tutorial, you use ArcGIS REST JS to access the GeoEnrichment service and display spending trend information for a study area within the United States.

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 basemapEnum = "ArcGIS:Streets";
const map = new maplibregl.Map({
  container: "map", // the id of the div element
  style: `https://basemaps-api.arcgis.com/arcgis/rest/services/styles/${basemapEnum}?type=style&token=${apiKey}`,
  zoom: 12, // starting zoom
  center: [-118.805, 34.027] // starting location [longitude, latitude]
});

Add references to ArcGIS REST JS

Reference the request and demographics moduels from ArcGIS REST JS.

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  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
    <script src="https://unpkg.com/maplibre-gl@2.1.9/dist/maplibre-gl.js"></script>
    <link href="https://unpkg.com/maplibre-gl@2.1.9/dist/maplibre-gl.css" rel="stylesheet" />

    <script src="https://unpkg.com/@esri/arcgis-rest-request@4.0.0/dist/bundled/request.umd.js"></script>
    <script src="https://unpkg.com/@esri/arcgis-rest-demographics@4.0.0/dist/bundled/demographics.umd.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>
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Update the map position

Update the center parameter to [-86.7679, 36.1745] and set zoom to 12.

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      const apiKey = "YOUR_API_KEY";
      const basemapEnum = "ArcGIS:Streets";

      const map = new maplibregl.Map({
        container: "map", // the id of the div element
        style: `https://basemaps-api.arcgis.com/arcgis/rest/services/styles/${basemapEnum}?type=style&token=${apiKey}`,

        zoom: 12, // starting zoom
        center: [-86.7679, 36.1745] // starting location [longitude, latitude]

      });
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Add a click event handler

You need a location before accessing the GeoEnrichment service. Add a click handler to the Map. The click handler will be called with an object containing a LngLat.

You can change the mouse cursor to a crosshair to make it easier to click precisely. Use map.getCanvas to get the canvas, then modify its style property.

After the map initialization code, set the mouse cursor style to crosshair.

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      const map = new maplibregl.Map({
        container: "map", // the id of the div element
        style: `https://basemaps-api.arcgis.com/arcgis/rest/services/styles/${basemapEnum}?type=style&token=${apiKey}`,

        zoom: 12, // starting zoom
        center: [-86.7679, 36.1745] // starting location [longitude, latitude]

      });

      map.getCanvas().style.cursor = "crosshair";
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Add an async handler for the click event.

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      map.getCanvas().style.cursor = "crosshair";

      map.on("click", async (e) => {
        // e.lngLat contains the clicked location

      });
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Execute the query

You pass one or more study areas to arcgisRest.queryDemographicData to specify the location of your query. To query a circular buffer around a point, pass a geometry object with x and y parameters. The default search radius is one mile.

Create a new arcgisRest.ApiKey.

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      const map = new maplibregl.Map({
        container: "map", // the id of the div element
        style: `https://basemaps-api.arcgis.com/arcgis/rest/services/styles/${basemapEnum}?type=style&token=${apiKey}`,

        zoom: 12, // starting zoom
        center: [-86.7679, 36.1745] // starting location [longitude, latitude]

      });

      const authentication = arcgisRest.ApiKeyManager.fromKey(apiKey);
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Inside the click handler, call arcgisRest.queryDemographicData. Set the studyAreas parameter to a point geometry made from the event's lngLat property. Also pass the authentication object.

queryDemographicData is an asynchronous function that queries the GeoEnrichment service. The await keyword will cause your program to wait for a response from the service before continuing.

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      map.on("click", async (e) => {
        // e.lngLat contains the clicked location

        const response = await arcgisRest.queryDemographicData({
          studyAreas: [
            {
              geometry: {
                x: e.lngLat.lng,
                y: e.lngLat.lat
              }
            }
          ],
          authentication: authentication,

        });

      });
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Set the analysisVariables parameter with the following analysis variables:

Buys Natural Products (PsychographicsShopping.MP28067A_B)
Auto/Truck Rental on Trips (transportation.X7027_I)
Membership fees for Social Clubs (entertainment.X9005_I)
Tapestry group name (lifemodegroupsNEW.TLIFENAME)

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        const response = await arcgisRest.queryDemographicData({
          studyAreas: [
            {
              geometry: {
                x: e.lngLat.lng,
                y: e.lngLat.lat
              }
            }
          ],
          authentication: authentication,

          analysisVariables: [
            "PsychographicsShopping.MP28067A_B",
            "transportation.X7027_I",
            "entertainment.X9005_I",
            "lifemodegroupsNEW.TLIFENAME"
          ],

        });
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Display a pop-up

If the query is successful, the response will contain a results array with a value containing a FeatureSet. The FeatureSet contains attributes such as population within the study area, the number of males and females, and the average household size. A message will display if there is no data available for a location selected. To learn more, visit the GeoEnrichment service page.

You can use a pop-up to show the results of the query at the location where you clicked on the map.

To add a pop-up to the map, you use the Popup class in MapLibre GL JS. See the Display a pop-up tutorial for more information.

Set a variable containing the contents of the pop-up, using values from the query response.

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        const response = await arcgisRest.queryDemographicData({
          studyAreas: [
            {
              geometry: {
                x: e.lngLat.lng,
                y: e.lngLat.lat
              }
            }
          ],
          authentication: authentication,

          analysisVariables: [
            "PsychographicsShopping.MP28067A_B",
            "transportation.X7027_I",
            "entertainment.X9005_I",
            "lifemodegroupsNEW.TLIFENAME"
          ],

        });

        let message;
        const featureSet = response.results[0].value.FeatureSet;
        if (featureSet.length > 0 && featureSet[0].features.length > 0) {
          const attributes = featureSet[0].features[0].attributes;
          message =
            "<b>Data for a 1 mile search radius</b><br>" +
            [
              `Buys Natural Products: ${attributes.MP28067a_B}`,
              `Membership fees for Social Clubs: ${attributes.X9005_I}`,
              `Auto/Truck Rental on Trips: ${attributes.X7027_I}`,
              `Tapestry group name: ${attributes.TLIFENAME}`
            ].join("<br>");

        } else {
          message = "Data not available for this location.";
        }
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Create a Popup to display a message containing demographic attributes, and add it to the map at the clicked location.

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        } else {
          message = "Data not available for this location.";
        }

        const popup = new maplibregl.Popup().setHTML(message).setLngLat(e.lngLat).addTo(map);
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Run the app

In CodePen, run your code to display the map.

You should now see a map centered over Nashville. Click on the map to access the GeoEnrichment service to return local information and view the results in a popup.

What's next?

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

Get global data

Query demographic information for locations around the world with the GeoEnrichment service.

Search for an address

Find an address or place using a search box and the geocoding service.

Query a feature layer (SQL)

Execute a SQL query to access polygon features from a feature layer.

MapLibre GL JS

Get local data

Solution

Estimated time

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