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(
    {
      componentRestrictions: {
        country: "AU",
        postalCode: "2000",
      },
    },
    (
      results: google.maps.GeocoderResult[],
      status: google.maps.GeocoderStatus
    ) => {
      if (status === "OK") {
        map.setCenter(results[0].geometry.location);
        new google.maps.Marker({
          map,
          position: results[0].geometry.location,
        });
      } else {
        window.alert(
          "Geocode was not successful for the following reason: " + status
        );
      }
    }
  );
}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(
    {
      componentRestrictions: {
        country: "AU",
        postalCode: "2000",
      },
    },
    (results, status) => {
      if (status === "OK") {
        map.setCenter(results[0].geometry.location);
        new google.maps.Marker({
          map,
          position: results[0].geometry.location,
        });
      } else {
        window.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 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">
      <pre>componentRestrictions: {country: "AU", postalCode: "2000"}</pre>
      <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

All

<!DOCTYPE html>
<html>
  <head>
    <title>Geocoding Component Restriction</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></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 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(
          {
            componentRestrictions: {
              country: "AU",
              postalCode: "2000",
            },
          },
          (results, status) => {
            if (status === "OK") {
              map.setCenter(results[0].geometry.location);
              new google.maps.Marker({
                map,
                position: results[0].geometry.location,
              });
            } else {
              window.alert(
                "Geocode was not successful for the following reason: " + status
              );
            }
          }
        );
      }
    </script>
  </head>
  <body>
    <div id="floating-panel">
      <pre>componentRestrictions: {country: "AU", postalCode: "2000"}</pre>
      <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>
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 Component Restriction</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>  </head> <body> <div id="floating-panel"> <pre>componentRestrictions: {country: "AU", postalCode: "2000"}</pre> <button id="submit">Geocode</button> </div> <div id="map"></div>  <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&libraries=&v=weekly" async ></script> </body> </html>