Place Autocomplete

The Place Autocomplete sample demonstrates how to use the Place Autocomplete widget to provide a type-ahead search box.

  • The radio buttons allow you to filter the types of predictions that the autocomplete returns.
  • The Strict Bounds option restricts the search to the area within the current viewport. If this option is not checked, then the API biases the search to the current viewport, but it does not restrict it.

When you select an autocomplete result the sample then calls the getPlace() method, and then it opens an info window to display place details.

For more information, see the Autocomplete class.

TypeScript

// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">

function initMap(): void {
  const map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    {
      center: { lat: 40.749933, lng: -73.98633 },
      zoom: 13,
      mapTypeControl: false,
    }
  );
  const card = document.getElementById("pac-card") as HTMLElement;
  const input = document.getElementById("pac-input") as HTMLInputElement;
  const biasInputElement = document.getElementById(
    "use-location-bias"
  ) as HTMLInputElement;
  const strictBoundsInputElement = document.getElementById(
    "use-strict-bounds"
  ) as HTMLInputElement;
  const options = {
    fields: ["formatted_address", "geometry", "name"],
    strictBounds: false,
  };

  map.controls[google.maps.ControlPosition.TOP_LEFT].push(card);

  const autocomplete = new google.maps.places.Autocomplete(input, options);

  // Bind the map's bounds (viewport) property to the autocomplete object,
  // so that the autocomplete requests use the current map bounds for the
  // bounds option in the request.
  autocomplete.bindTo("bounds", map);

  const infowindow = new google.maps.InfoWindow();
  const infowindowContent = document.getElementById(
    "infowindow-content"
  ) as HTMLElement;

  infowindow.setContent(infowindowContent);

  const marker = new google.maps.Marker({
    map,
    anchorPoint: new google.maps.Point(0, -29),
  });

  autocomplete.addListener("place_changed", () => {
    infowindow.close();
    marker.setVisible(false);

    const place = autocomplete.getPlace();

    if (!place.geometry || !place.geometry.location) {
      // User entered the name of a Place that was not suggested and
      // pressed the Enter key, or the Place Details request failed.
      window.alert("No details available for input: '" + place.name + "'");
      return;
    }

    // If the place has a geometry, then present it on a map.
    if (place.geometry.viewport) {
      map.fitBounds(place.geometry.viewport);
    } else {
      map.setCenter(place.geometry.location);
      map.setZoom(17);
    }

    marker.setPosition(place.geometry.location);
    marker.setVisible(true);

    infowindowContent.children["place-name"].textContent = place.name;
    infowindowContent.children["place-address"].textContent =
      place.formatted_address;
    infowindow.open(map, marker);
  });

  // Sets a listener on a radio button to change the filter type on Places
  // Autocomplete.
  function setupClickListener(id, types) {
    const radioButton = document.getElementById(id) as HTMLInputElement;

    radioButton.addEventListener("click", () => {
      autocomplete.setTypes(types);
      input.value = "";
    });
  }

  setupClickListener("changetype-all", []);
  setupClickListener("changetype-address", ["address"]);
  setupClickListener("changetype-establishment", ["establishment"]);
  setupClickListener("changetype-geocode", ["geocode"]);
  setupClickListener("changetype-cities", ["(cities)"]);
  setupClickListener("changetype-regions", ["(regions)"]);

  biasInputElement.addEventListener("change", () => {
    if (biasInputElement.checked) {
      autocomplete.bindTo("bounds", map);
    } else {
      // User wants to turn off location bias, so three things need to happen:
      // 1. Unbind from map
      // 2. Reset the bounds to whole world
      // 3. Uncheck the strict bounds checkbox UI (which also disables strict bounds)
      autocomplete.unbind("bounds");
      autocomplete.setBounds({ east: 180, west: -180, north: 90, south: -90 });
      strictBoundsInputElement.checked = biasInputElement.checked;
    }

    input.value = "";
  });

  strictBoundsInputElement.addEventListener("change", () => {
    autocomplete.setOptions({
      strictBounds: strictBoundsInputElement.checked,
    });

    if (strictBoundsInputElement.checked) {
      biasInputElement.checked = strictBoundsInputElement.checked;
      autocomplete.bindTo("bounds", map);
    }

    input.value = "";
  });
}

declare global {
  interface Window {
    initMap: () => void;
  }
}
window.initMap = initMap;

JavaScript

// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">
function initMap() {
  const map = new google.maps.Map(document.getElementById("map"), {
    center: { lat: 40.749933, lng: -73.98633 },
    zoom: 13,
    mapTypeControl: false,
  });
  const card = document.getElementById("pac-card");
  const input = document.getElementById("pac-input");
  const biasInputElement = document.getElementById("use-location-bias");
  const strictBoundsInputElement = document.getElementById("use-strict-bounds");
  const options = {
    fields: ["formatted_address", "geometry", "name"],
    strictBounds: false,
  };

  map.controls[google.maps.ControlPosition.TOP_LEFT].push(card);

  const autocomplete = new google.maps.places.Autocomplete(input, options);

  // Bind the map's bounds (viewport) property to the autocomplete object,
  // so that the autocomplete requests use the current map bounds for the
  // bounds option in the request.
  autocomplete.bindTo("bounds", map);

  const infowindow = new google.maps.InfoWindow();
  const infowindowContent = document.getElementById("infowindow-content");

  infowindow.setContent(infowindowContent);

  const marker = new google.maps.Marker({
    map,
    anchorPoint: new google.maps.Point(0, -29),
  });

  autocomplete.addListener("place_changed", () => {
    infowindow.close();
    marker.setVisible(false);

    const place = autocomplete.getPlace();

    if (!place.geometry || !place.geometry.location) {
      // User entered the name of a Place that was not suggested and
      // pressed the Enter key, or the Place Details request failed.
      window.alert("No details available for input: '" + place.name + "'");
      return;
    }

    // If the place has a geometry, then present it on a map.
    if (place.geometry.viewport) {
      map.fitBounds(place.geometry.viewport);
    } else {
      map.setCenter(place.geometry.location);
      map.setZoom(17);
    }

    marker.setPosition(place.geometry.location);
    marker.setVisible(true);
    infowindowContent.children["place-name"].textContent = place.name;
    infowindowContent.children["place-address"].textContent =
      place.formatted_address;
    infowindow.open(map, marker);
  });

  // Sets a listener on a radio button to change the filter type on Places
  // Autocomplete.
  function setupClickListener(id, types) {
    const radioButton = document.getElementById(id);

    radioButton.addEventListener("click", () => {
      autocomplete.setTypes(types);
      input.value = "";
    });
  }

  setupClickListener("changetype-all", []);
  setupClickListener("changetype-address", ["address"]);
  setupClickListener("changetype-establishment", ["establishment"]);
  setupClickListener("changetype-geocode", ["geocode"]);
  setupClickListener("changetype-cities", ["(cities)"]);
  setupClickListener("changetype-regions", ["(regions)"]);
  biasInputElement.addEventListener("change", () => {
    if (biasInputElement.checked) {
      autocomplete.bindTo("bounds", map);
    } else {
      // User wants to turn off location bias, so three things need to happen:
      // 1. Unbind from map
      // 2. Reset the bounds to whole world
      // 3. Uncheck the strict bounds checkbox UI (which also disables strict bounds)
      autocomplete.unbind("bounds");
      autocomplete.setBounds({ east: 180, west: -180, north: 90, south: -90 });
      strictBoundsInputElement.checked = biasInputElement.checked;
    }

    input.value = "";
  });
  strictBoundsInputElement.addEventListener("change", () => {
    autocomplete.setOptions({
      strictBounds: strictBoundsInputElement.checked,
    });
    if (strictBoundsInputElement.checked) {
      biasInputElement.checked = strictBoundsInputElement.checked;
      autocomplete.bindTo("bounds", map);
    }

    input.value = "";
  });
}

window.initMap = initMap;

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;
}

#description {
  font-family: Roboto;
  font-size: 15px;
  font-weight: 300;
}

#infowindow-content .title {
  font-weight: bold;
}

#infowindow-content {
  display: none;
}

#map #infowindow-content {
  display: inline;
}

.pac-card {
  background-color: #fff;
  border: 0;
  border-radius: 2px;
  box-shadow: 0 1px 4px -1px rgba(0, 0, 0, 0.3);
  margin: 10px;
  padding: 0 0.5em;
  font: 400 18px Roboto, Arial, sans-serif;
  overflow: hidden;
  font-family: Roboto;
  padding: 0;
}

#pac-container {
  padding-bottom: 12px;
  margin-right: 12px;
}

.pac-controls {
  display: inline-block;
  padding: 5px 11px;
}

.pac-controls label {
  font-family: Roboto;
  font-size: 13px;
  font-weight: 300;
}

#pac-input {
  background-color: #fff;
  font-family: Roboto;
  font-size: 15px;
  font-weight: 300;
  margin-left: 12px;
  padding: 0 11px 0 13px;
  text-overflow: ellipsis;
  width: 400px;
}

#pac-input:focus {
  border-color: #4d90fe;
}

#title {
  color: #fff;
  background-color: #4d90fe;
  font-size: 25px;
  font-weight: 500;
  padding: 6px 12px;
}

HTML

<html>
  <head>
    <title>Place Autocomplete</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div class="pac-card" id="pac-card">
      <div>
        <div id="title">Autocomplete search</div>
        <div id="type-selector" class="pac-controls">
          <input
            type="radio"
            name="type"
            id="changetype-all"
            checked="checked"
          />
          <label for="changetype-all">All</label>

          <input type="radio" name="type" id="changetype-establishment" />
          <label for="changetype-establishment">establishment</label>

          <input type="radio" name="type" id="changetype-address" />
          <label for="changetype-address">address</label>

          <input type="radio" name="type" id="changetype-geocode" />
          <label for="changetype-geocode">geocode</label>

          <input type="radio" name="type" id="changetype-cities" />
          <label for="changetype-cities">(cities)</label>

          <input type="radio" name="type" id="changetype-regions" />
          <label for="changetype-regions">(regions)</label>
        </div>
        <br />
        <div id="strict-bounds-selector" class="pac-controls">
          <input type="checkbox" id="use-location-bias" value="" checked />
          <label for="use-location-bias">Bias to map viewport</label>

          <input type="checkbox" id="use-strict-bounds" value="" />
          <label for="use-strict-bounds">Strict bounds</label>
        </div>
      </div>
      <div id="pac-container">
        <input id="pac-input" type="text" placeholder="Enter a location" />
      </div>
    </div>
    <div id="map"></div>
    <div id="infowindow-content">
      <span id="place-name" class="title"></span><br />
      <span id="place-address"></span>
    </div>

    <!-- 
      The `defer` attribute causes the callback to execute after the full HTML
      document has been parsed. For non-blocking uses, avoiding race conditions,
      and consistent behavior across browsers, consider loading using Promises.
      See https://developers.google.com/maps/documentation/javascript/load-maps-js-api
      for more information.
      -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&libraries=places&v=weekly"
      defer
    ></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-places-autocomplete https://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

Use the Place Picker component

Note: This sample uses an open source library. See the README for support and feedback related to the library.

Display place autocomplete with just a few lines of code using web components.

GIF with search box. User starts to type an address as input and a dropdown with related
      addresses appears. User clicks an address from the dropdown and the search box fills
      in the rest of the address.
Figure 1: Text input to search for a specific address or place using autocomplete

What are web components?

Web components allow you to create custom, reusable, encapsulated HTML tags that are usable anywhere in the HTML of your web app. They are supported in all modern browsers and expose a framework-agnostic mechanism for encapsulating UI and functionality.

What is the Place Picker component?

The place picker component is a text input that allows end users to search for a specific address or place using autocomplete.

What is the Extended Component Library?

The Extended Component Library from Google Maps Platform is a set of Web Components that helps developers build better maps and location features faster, and with less effort. It encapsulates boilerplate code, best practices, and responsive design, reducing complex map interfaces into a single HTML element. Ultimately, these components make it easier to read, learn, customize, and maintain maps and location-related code.

Get Started

To get started, load the Extended Component library with npm.

For best performance, use a package manager and import only the components you need. This package is listed on npm as @googlemaps/extended-component-library. Install it with:

  npm i @googlemaps/extended-component-library;

Then import any components you use in your application.

  import '@googlemaps/extended-component-library/place_picker.js';

After loading the npm library, get an API Key from the Cloud Console.

  <gmpx-api-loader key="YOUR_API_KEY"></gmpx-api-loader>

Use the place picker component tag.

  <gmpx-place-picker placeholder="Enter a place" id="place-picker" style="width: 100%">
  </gmpx-place-picker>

For more details, check out Github or npm. To see components used in sample code, check out the examples page on Github.