Get local data

Learn how to access local data with the .

Display local facts using API key authentication

The provides detailed local data for specific countries. Each individual data field is represented by an 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 to access the GeoEnrichment service and display spending trend information for a study area within the United States.

Prerequisites

Steps

Get the starter app

Select a type of authentication below and follow the steps to create a new application.

You can choose one of the following to create a new CodePen:

  • Option 1: Complete the Display a map tutorial; or,
  • Option 2: Start from the Display a map tutorial .

Set up authentication

Create in your for the type of authentication you selected.

Create a new with the correct privileges to access the resources used in this tutorial.

  1. Go to the Create an API key tutorial and create an with the following :
    • Privileges
      • Location services > Basemaps
      • Location services > Data enrichment
  2. Copy the API key access token to your clipboard when prompted.

Set developer credentials

Use the API key or OAuth so your application can access .

  1. Update the accessToken variable to use your API key.

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        /* Use for API key authentication */
        const accessToken = "YOUR_ACCESS_TOKEN"
    
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Add references to ArcGIS REST JS

  1. Reference the request and demographics modules 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@5.1.0/dist/maplibre-gl.js"></script>
      <link href="https://unpkg.com/maplibre-gl@5.1.0/dist/maplibre-gl.css" rel="stylesheet" />
    
      <script src="https://unpkg.com/@esri/arcgis-rest-request@4/dist/bundled/request.umd.js"></script>
      <script
        src="https://unpkg.com/@esri/arcgis-rest-demographics@4/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>
    
    Expand

Update the map position

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

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        /* Use for API key authentication */
        const accessToken = "YOUR_ACCESS_TOKEN";
    
        // or
    
        /* 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: "YOUR_PORTAL_URL" // Your portal URL
        // })
    
        // const accessToken = session.token;
        const basemapEnum = "arcgis/outdoor";
    
        const map = new maplibregl.Map({
          container: "map", // the id of the div element
          style: `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapEnum}?token=${accessToken}`,
    
          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 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.

  1. 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://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapEnum}?token=${accessToken}`,
    
          zoom: 12, // starting zoom
          center: [-86.7679, 36.1745] // starting location [longitude, latitude]
    
        });
    
        map.getCanvas().style.cursor = "crosshair";
    
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  2. 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.

  1. Create a new arcgisRest.accessToken.

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        const map = new maplibregl.Map({
          container: "map", // the id of the div element
          style: `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapEnum}?token=${accessToken}`,
    
          zoom: 12, // starting zoom
          center: [-86.7679, 36.1745] // starting location [longitude, latitude]
    
        });
    
        const authentication = arcgisRest.ApiKeyManager.fromKey(accessToken);
    
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  2. Inside the click handler, call arcgisRest.queryDemographicData. Set the studyAreas parameter to a geometry made from the event's lngLat property. Also pass the authentication object.

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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,
    
          });
    
        });
    
    Expand
  3. 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.

  1. 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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  2. 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);
    
    Expand

Run the app

Run the app.

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:

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