Geocoding Service

This example creates a map along with a text input field and a button. When you click the "geocode" button, the sample sends a geocoding request, then pans the map to the geocoded location.

Read the documentation.

TypeScript

function initMap(): void {
  const map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    {
      zoom: 8,
      center: { lat: -34.397, lng: 150.644 },
    }
  );
  const geocoder = new google.maps.Geocoder();

  (document.getElementById("submit") as HTMLButtonElement).addEventListener(
    "click",
    () => {
      geocodeAddress(geocoder, map);
    }
  );
}

function geocodeAddress(
  geocoder: google.maps.Geocoder,
  resultsMap: google.maps.Map
) {
  const address = (document.getElementById("address") as HTMLInputElement)
    .value;
  geocoder.geocode({ address: address }, (results, status) => {
    if (status === "OK") {
      resultsMap.setCenter(results[0].geometry.location);
      new google.maps.Marker({
        map: resultsMap,
        position: results[0].geometry.location,
      });
    } else {
      alert("Geocode was not successful for the following reason: " + status);
    }
  });
}index.ts

JavaScript

function initMap() {
  const map = new google.maps.Map(document.getElementById("map"), {
    zoom: 8,
    center: { lat: -34.397, lng: 150.644 },
  });
  const geocoder = new google.maps.Geocoder();
  document.getElementById("submit").addEventListener("click", () => {
    geocodeAddress(geocoder, map);
  });
}

function geocodeAddress(geocoder, resultsMap) {
  const address = document.getElementById("address").value;
  geocoder.geocode({ address: address }, (results, status) => {
    if (status === "OK") {
      resultsMap.setCenter(results[0].geometry.location);
      new google.maps.Marker({
        map: resultsMap,
        position: results[0].geometry.location,
      });
    } else {
      alert("Geocode was not successful for the following reason: " + status);
    }
  });
}
index.js

CSS

/* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
#map {
  height: 100%;
}

/* Optional: Makes the sample page fill the window. */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

#floating-panel {
  position: absolute;
  top: 10px;
  left: 25%;
  z-index: 5;
  background-color: #fff;
  padding: 5px;
  border: 1px solid #999;
  text-align: center;
  font-family: "Roboto", "sans-serif";
  line-height: 30px;
  padding-left: 10px;
}
style.css

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Geocoding Service</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script src="./index.js"></script>
  </head>
  <body>
    <div id="floating-panel">
      <input id="address" type="textbox" value="Sydney, NSW" />
      <input id="submit" type="button" value="Geocode" />
    </div>
    <div id="map"></div>
  </body>
</html>sample.html

All

<!DOCTYPE html>
<html>
  <head>
    <title>Geocoding Service</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      defer
    ></script>
    <style type="text/css">
      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 100%;
      }

      /* Optional: Makes the sample page fill the window. */
      html,
      body {
        height: 100%;
        margin: 0;
        padding: 0;
      }

      #floating-panel {
        position: absolute;
        top: 10px;
        left: 25%;
        z-index: 5;
        background-color: #fff;
        padding: 5px;
        border: 1px solid #999;
        text-align: center;
        font-family: "Roboto", "sans-serif";
        line-height: 30px;
        padding-left: 10px;
      }
    </style>
    <script>
      function initMap() {
        const map = new google.maps.Map(document.getElementById("map"), {
          zoom: 8,
          center: { lat: -34.397, lng: 150.644 },
        });
        const geocoder = new google.maps.Geocoder();
        document.getElementById("submit").addEventListener("click", () => {
          geocodeAddress(geocoder, map);
        });
      }

      function geocodeAddress(geocoder, resultsMap) {
        const address = document.getElementById("address").value;
        geocoder.geocode({ address: address }, (results, status) => {
          if (status === "OK") {
            resultsMap.setCenter(results[0].geometry.location);
            new google.maps.Marker({
              map: resultsMap,
              position: results[0].geometry.location,
            });
          } else {
            alert(
              "Geocode was not successful for the following reason: " + status
            );
          }
        });
      }
    </script>
  </head>
  <body>
    <div id="floating-panel">
      <input id="address" type="textbox" value="Sydney, NSW" />
      <input id="submit" type="button" value="Geocode" />
    </div>
    <div id="map"></div>
  </body>
</html>
inline.html

/* Always set the map height explicitly to define the size of the div * element that contains the map. */ #map { height: 100%; } /* Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; } #floating-panel { position: absolute; top: 10px; left: 25%; z-index: 5; background-color: #fff; padding: 5px; border: 1px solid #999; text-align: center; font-family: "Roboto", "sans-serif"; line-height: 30px; padding-left: 10px; }

<!DOCTYPE html> <html> <head> <title>Geocoding Service</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initMap&libraries=&v=weekly" defer ></script>  </head> <body> <div id="floating-panel"> <input id="address" type="textbox" value="Sydney, NSW" /> <input id="submit" type="button" value="Geocode" /> </div> <div id="map"></div> </body> </html>

Create a starter application from sample

A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.

Run Locally

Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM.

npx @googlemaps/js-samples init geocoding-simple DESTINATION_FOLDER

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