Get local data

Learn how to access local data 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

Steps

Get the starter app

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

Set up authentication

Create developer credentials in your portal for the type of authentication you selected.

Set developer credentials

Use the API key or OAuth developer credentials so your application can access location services.

Add references to ArcGIS REST JS

This tutorial uses ArcGIS REST JS to access the GeoEnrichment service. It also uses the ol-popup library to display pop-ups.

1. Reference the ArcGIS REST JS and ol-popup libraries.

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     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@v10.5.0/ol.css" type="text/css" />
     <script src="https://cdn.jsdelivr.net/npm/ol@v10.5.0/dist/ol.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/ol-mapbox-style@12.5.0/dist/olms.js" type="text/javascript"></script>
     <script src="https://unpkg.com/ol-popup@5.1.1/dist/ol-popup.js"></script>
     <link rel="stylesheet" href="https://unpkg.com/ol-popup@5.1.1/src/ol-popup.css" />
   
     <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>
   

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Update the map

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

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       map.setView(
         new ol.View({
   
           center: ol.proj.fromLonLat([-86.7679, 36.1745]),
           zoom: 12
   
         })
       );
   

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2. Update the basemapId to arcgis/navigation.

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       const basemapId = "arcgis/navigation";
   
       const basemapURL = `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapId}?token=${accessToken}`;
   
       olms.apply(map, basemapURL).then(function (map) {
   
   

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Add a click event handler

You need a location before calling the GeoEnrichment service. To get a location, you can add a handler to the Map's click event. The click handler will be called with an object containing a Coordinate.

You can change the mouse cursor to a crosshair to make it easier to click precisely. Modify the CSS style of its canvas element to do this.

1. In the <style> , set the mouse cursor style to crosshair.

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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;
       }
   
   
       #map canvas {
         cursor: crosshair;
       }
   
       .ol-popup {
         width: 250px;
       }
   
   
     </style>
   

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2. Add a handler for the click event. Inside, convert the click coordinate to a longitude and latitude and save it in a variable.

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       olms.apply(map, basemapURL).then(function (map) {
   
         map.on("click", (event) => {
   
           const lonLat = ol.proj.toLonLat(event.coordinate);
   
         });
   
         // Add Esri attribution
         // Learn more in https://esriurl.com/attribution
         const source = map.getLayers().item(0).getSource();
         const poweredByEsriString = "Powered by <a href='https://www.esri.com/en-us/home' target='_blank'>Esri</a> | ";
   
         const attributionFn = source.getAttributions();
         if (attributionFn) {
           source.setAttributions((ViewStateLayerStateExtent) => {
             return [poweredByEsriString, ...attributionFn(ViewStateLayerStateExtent)];
           });
         }
         else source.setAttributions(poweredByEsriString);
   
       });
   

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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. Inside the click handler, create a new arcgisRest.ApiKeyManager to access the GeoEnrichment service. Call the service using queryDemographicData. Set the studyAreas parameter to a point geometry made from the event's lngLat property.

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         map.on("click", (event) => {
   
           const lonLat = ol.proj.toLonLat(event.coordinate);
   
           const authentication = arcgisRest.ApiKeyManager.fromKey(accessToken);
   
           arcgisRest
             .queryDemographicData({
               studyAreas: [{ geometry: { x: lonLat[0], y: lonLat[1] } }],
               authentication: authentication,
   
             })
   
         });
   

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2. 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 authentication = arcgisRest.ApiKeyManager.fromKey(accessToken);
   
           arcgisRest
             .queryDemographicData({
               studyAreas: [{ geometry: { x: lonLat[0], y: lonLat[1] } }],
               authentication: authentication,
   
               analysisVariables: [
                 "PsychographicsShopping.MP28067A_B",
                 "transportation.X7027_I",
                 "entertainment.X9005_I",
                 "lifemodegroupsNEW.TLIFENAME"
               ],
   
             })
   

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Display the results

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. To learn more, visit the GeoEnrichment service page.

You will display the results of the query in a pop-up.

1. Before the click handler, create a Popup and save it to a popup variable. Add it to the map with map.addOverlay.

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       const basemapId = "arcgis/navigation";
   
       const basemapURL = `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapId}?token=${accessToken}`;
   
       olms.apply(map, basemapURL).then(function (map) {
   
         const popup = new Popup();
         map.addOverlay(popup);
   

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2. Add a then handler to the queryDemographicData call. Inside, store the FeatureSet from the first result in a variable.

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           arcgisRest
             .queryDemographicData({
               studyAreas: [{ geometry: { x: lonLat[0], y: lonLat[1] } }],
               authentication: authentication,
   
               analysisVariables: [
                 "PsychographicsShopping.MP28067A_B",
                 "transportation.X7027_I",
                 "entertainment.X9005_I",
                 "lifemodegroupsNEW.TLIFENAME"
               ],
   
             })
   
             .then((response) => {
   
               const data = document.getElementById("data");
   
               const featureSet = response.results[0].value.FeatureSet;
   
             });
   

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3. If the FeatureSet contains data, use its attributes to build a message to show. Use popup.show to display the message at the location of the mouse click. Otherwise, display a "Data not available" message.

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               const data = document.getElementById("data");
   
               const featureSet = response.results[0].value.FeatureSet;
   
               let message;
               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.";
               }
               popup.show(event.coordinate, message);
   

   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: