Geocoding Component Restrictions

This example creates a request to the geocoding service that restricts the results to a particular postal area within Sydney, Australia.

Read the documentation.

TypeScript

function initMap(): void {
  const geocoder = new google.maps.Geocoder();
  const map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    {
      zoom: 8,
      center: { lat: -33.865, lng: 151.209 },
    }
  );

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

function geocodeAddress(geocoder: google.maps.Geocoder, map: google.maps.Map) {
  geocoder
    .geocode({
      address: "483 George St.",
      componentRestrictions: {
        country: "AU",
        postalCode: "2000",
      },
    })
    .then(({ results }) => {
      map.setCenter(results[0].geometry.location);
      new google.maps.Marker({
        map,
        position: results[0].geometry.location,
      });
    })
    .catch((e) =>
      window.alert("Geocode was not successful for the following reason: " + e)
    );
}
index.ts

JavaScript

function initMap() {
  const geocoder = new google.maps.Geocoder();
  const map = new google.maps.Map(document.getElementById("map"), {
    zoom: 8,
    center: { lat: -33.865, lng: 151.209 },
  });
  document.getElementById("submit").addEventListener("click", () => {
    geocodeAddress(geocoder, map);
  });
}

function geocodeAddress(geocoder, map) {
  geocoder
    .geocode({
      address: "483 George St.",
      componentRestrictions: {
        country: "AU",
        postalCode: "2000",
      },
    })
    .then(({ results }) => {
      map.setCenter(results[0].geometry.location);
      new google.maps.Marker({
        map,
        position: results[0].geometry.location,
      });
    })
    .catch((e) =>
      window.alert("Geocode was not successful for the following reason: " + e)
    );
}

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 Component Restriction</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script src="./index.js"></script>
  </head>
  <body>
    <div id="floating-panel">
      <code>componentRestrictions: {country: "AU", postalCode: "2000"}</code
      ><br />
      <button id="submit">Geocode</button>
    </div>
    <div id="map"></div>

    <!-- Async script executes immediately and must be after any DOM elements used in callback. -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      async
    ></script>
  </body>
</html>
sample.html
function initMap() { const geocoder = new google.maps.Geocoder(); const map = new google.maps.Map(document.getElementById("map"), { zoom: 8, center: { lat: -33.865, lng: 151.209 }, }); document.getElementById("submit").addEventListener("click", () => { geocodeAddress(geocoder, map); }); } function geocodeAddress(geocoder, map) { geocoder .geocode({ address: "483 George St.", componentRestrictions: { country: "AU", postalCode: "2000", }, }) .then(({ results }) => { map.setCenter(results[0].geometry.location); new google.maps.Marker({ map, position: results[0].geometry.location, }); }) .catch((e) => window.alert("Geocode was not successful for the following reason: " + e) ); }
/* 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 Component Restriction</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <!-- jsFiddle will insert css and js --> </head> <body> <div id="floating-panel"> <code>componentRestrictions: {country: "AU", postalCode: "2000"}</code ><br /> <button id="submit">Geocode</button> </div> <div id="map"></div> <!-- Async script executes immediately and must be after any DOM elements used in callback. --> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&libraries=&v=weekly&channel=2" async ></script> </body> </html>

Try Sample

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application. 

  git clone -b sample-geocoding-component-restriction git@github.com:googlemaps/js-samples.git
  cd js-samples
  npm i
  npm start

Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME. 

  git checkout sample-SAMPLE_NAME
  npm i
  npm start