Search for an address

Learn how to find an address or place using a search box and the geocoding service.

Search for an address

Find the location of addresses with the geocoding service.

Geocoding is the process of converting address or place text to a location. The geocoding service provides address and place geocoding and reverse geocoding.

In this tutorial, you use ArcGIS REST JS to access the geocoding service. You use a simple input control to accept text and a button to execute a search for an address or place. When an address or place is located, a pop-up will appear with the name, location, and address, and the view will pan to it.

Prerequisites

You need an ArcGIS Location Platform or ArcGIS Online account.

Steps

Create a new pen

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

Get an access token

You need an access token with the correct privileges to access the resources used in this tutorial.

  1. Go to the Create an API key tutorial and create an API key with the following privilege(s):

    • Privileges
      • Location services > Basemaps
      • Location services > Geocoding
  2. Copy the API key access token to your clipboard when prompted.

  3. In CodePen, update the accessToken variable to use your access token.

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

To learn about the other types of authentication available, go to Types of authentication.

Update the map

A navigation basemap layer is typically used in geocoding and routing applications. Update the basemap layer to use arcgis/navigation.

  1. Update the basemap and the map initialization to center on location [151.2093, -33.8688], Sydney.

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          map.setView(
            new ol.View({
    
              center: ol.proj.fromLonLat([151.2093, -33.8688]), // Sydney
    
              zoom: 13
            })
          );
    
          const accessToken = "YOUR_ACCESS_TOKEN";
    
          const basemapId = "arcgis/navigation";
    
          const basemapURL = `https://basemapstyles-api.arcgis.com/arcgis/rest/services/styles/v2/styles/${basemapId}?token=${accessToken}`;
    
    Expand

Add references to ArcGIS REST JS

This tutorial uses ArcGIS REST JS for geocoding. It also uses the ol-popup library to display pop-ups.

  1. In the <head> element, add references to the ArcGIS REST JS and ol-popup libraries.

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        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@v10.1.0/ol.css" type="text/css" />
        <script src="https://cdn.jsdelivr.net/npm/ol@v10.1.0/dist/ol.js"></script>
        <script src="https://cdn.jsdelivr.net/npm/ol-mapbox-style@12.3.5/dist/olms.js" type="text/javascript"></script>
    
        <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-geocoding@4.0.0/dist/bundled/geocoding.umd.js"></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" />
    
    Expand

Create geocoder controls

Use an HTML <input> control to type an address into, and a <button> control to initiate the query. Wrap them in a <div>.

  1. In the <body> section, add a div, with a text input control and a button inside.

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      <body>
    
        <div id="map"></div>
    
        <div class="search">
          <input id="geocode-input" type="text" placeholder="Enter an address or place e.g. 1 York St" size="50" />
          <button id="geocode-button">Geocode</button>
        </div>
    
    Expand
  2. In the <style> section, style the div with absolute position in the top right corner of the map.

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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;
          }
    
          .search {
            position: absolute;
            top: 20px;
            right: 20px;
          }
          #geocode-input,
          #geocode-button {
            font-size: 16px;
            margin: 0 2px 0 0;
            padding: 4px 8px;
          }
          #geocode-input {
            width: 300px;
          }
    
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Add a pop-up

You create a Popup to display the found address at its geocoded location. It is a type of Overlay so you add it to the map with map.addOverlay.

  1. After the map initialization code, create a Popup and save it to a popup variable. Add it to the map with map.addOverlay.

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

When you click the button, call arcgisRest.geocode with the value of the search query. This uses the findAddressCandidates operation from the geocoding service to return a number of possible address candidates for your query.

  1. Attach a click event handler to the button.

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          const popup = new Popup();
          map.addOverlay(popup);
    
          document.getElementById("geocode-button").addEventListener("click", () => {
    
          });
    
    Expand
  2. Inside the click handler, create a new arcgisRest.ApiKeyManager to access the geocoding service. Call arcgisRest.geocode with the user's search query. Set the params to include the center of the map and set outFields to * to return all fields.

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          document.getElementById("geocode-button").addEventListener("click", () => {
    
            const query = document.getElementById("geocode-input").value;
    
            const authentication = arcgisRest.ApiKeyManager.fromKey(accessToken);
    
            const center = ol.proj.transform(map.getView().getCenter(), "EPSG:3857", "EPSG:4326");
    
            arcgisRest
              .geocode({
                singleLine: query,
                authentication,
    
                params: {
                  outFields: "*",
                  location: center.join(","),
                  outSR: 3857 // Request coordinates in Web Mercator to simplify displaying
                }
              })
    
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Show the result

If the query is successful, the candidates property will contain at least one value. To display a pop-up at the location, you use the popup.show method. This sets the pop-up location, and updates its content with an HTML string.

  1. Add a response handler. Inside, check that candidates contains at least one value. Use the location property to calculate and store coordinates as an array.

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                params: {
                  outFields: "*",
                  location: center.join(","),
                  outSR: 3857 // Request coordinates in Web Mercator to simplify displaying
                }
              })
    
              .then((response) => {
                const result = response.candidates[0];
                if (!result === 0) {
                  alert("That query didn't match any geocoding results.");
                  return;
                }
    
                const coords = [result.location.x, result.location.y];
    
              })
    
    Expand
  2. Call popup.show to position the pop-up at the geocoded location. Pass the result's LongLabel attribute to display the full address as the pop-up's HTML content. Call map.setCenter to center the map at the result.

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                const coords = [result.location.x, result.location.y];
    
                popup.show(coords, result.attributes.LongLabel);
                map.getView().setCenter(coords);
    
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Handle errors

It is good practice to handle situations where there is a problem accessing the service. This could happen due to network disruption or a problem with your API key, for instance.

  1. Check for issues accessing the geocoding service and alert the user.

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                popup.show(coords, result.attributes.LongLabel);
                map.getView().setCenter(coords);
    
              })
    
              .catch((error) => {
                alert("There was a problem using the geocoder. See the console for details.");
                console.error(error);
              });
    
    Expand

Run the app

In CodePen, run your code to display the map.

In the input box, type "1 Lyon St." or "Starbucks" and then click the Geocode button to find it's location. If a location is found, the map will zoom to it and display a pop-up with the address.

What's next?

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

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