Place Autocomplete and Directions

This sample allows a user to specify source and destination locations, and then it uses the DirectionsService to calculate the route, and the DirectionsRenderer to display the route.

For more information, see Autocomplete for Addresses and Search Terms, and the Directions Service.

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,
    {
      mapTypeControl: false,
      center: { lat: -33.8688, lng: 151.2195 },
      zoom: 13,
    }
  );

  new AutocompleteDirectionsHandler(map);
}

class AutocompleteDirectionsHandler {
  map: google.maps.Map;
  originPlaceId: string;
  destinationPlaceId: string;
  travelMode: google.maps.TravelMode;
  directionsService: google.maps.DirectionsService;
  directionsRenderer: google.maps.DirectionsRenderer;

  constructor(map: google.maps.Map) {
    this.map = map;
    this.originPlaceId = "";
    this.destinationPlaceId = "";
    this.travelMode = google.maps.TravelMode.WALKING;
    this.directionsService = new google.maps.DirectionsService();
    this.directionsRenderer = new google.maps.DirectionsRenderer();
    this.directionsRenderer.setMap(map);

    const originInput = document.getElementById(
      "origin-input"
    ) as HTMLInputElement;
    const destinationInput = document.getElementById(
      "destination-input"
    ) as HTMLInputElement;
    const modeSelector = document.getElementById(
      "mode-selector"
    ) as HTMLSelectElement;

    // Specify just the place data fields that you need.
    const originAutocomplete = new google.maps.places.Autocomplete(
      originInput,
      { fields: ["place_id"] }
    );

    // Specify just the place data fields that you need.
    const destinationAutocomplete = new google.maps.places.Autocomplete(
      destinationInput,
      { fields: ["place_id"] }
    );

    this.setupClickListener(
      "changemode-walking",
      google.maps.TravelMode.WALKING
    );
    this.setupClickListener(
      "changemode-transit",
      google.maps.TravelMode.TRANSIT
    );
    this.setupClickListener(
      "changemode-driving",
      google.maps.TravelMode.DRIVING
    );

    this.setupPlaceChangedListener(originAutocomplete, "ORIG");
    this.setupPlaceChangedListener(destinationAutocomplete, "DEST");

    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(originInput);
    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(
      destinationInput
    );
    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(modeSelector);
  }

  // Sets a listener on a radio button to change the filter type on Places
  // Autocomplete.
  setupClickListener(id: string, mode: google.maps.TravelMode) {
    const radioButton = document.getElementById(id) as HTMLInputElement;

    radioButton.addEventListener("click", () => {
      this.travelMode = mode;
      this.route();
    });
  }

  setupPlaceChangedListener(
    autocomplete: google.maps.places.Autocomplete,
    mode: string
  ) {
    autocomplete.bindTo("bounds", this.map);

    autocomplete.addListener("place_changed", () => {
      const place = autocomplete.getPlace();

      if (!place.place_id) {
        window.alert("Please select an option from the dropdown list.");
        return;
      }

      if (mode === "ORIG") {
        this.originPlaceId = place.place_id;
      } else {
        this.destinationPlaceId = place.place_id;
      }

      this.route();
    });
  }

  route() {
    if (!this.originPlaceId || !this.destinationPlaceId) {
      return;
    }

    const me = this;

    this.directionsService.route(
      {
        origin: { placeId: this.originPlaceId },
        destination: { placeId: this.destinationPlaceId },
        travelMode: this.travelMode,
      },
      (response, status) => {
        if (status === "OK") {
          me.directionsRenderer.setDirections(response);
        } else {
          window.alert("Directions request failed due to " + status);
        }
      }
    );
  }
}

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

Note: Read the guide on using TypeScript and Google Maps.

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"), {
    mapTypeControl: false,
    center: { lat: -33.8688, lng: 151.2195 },
    zoom: 13,
  });

  new AutocompleteDirectionsHandler(map);
}

class AutocompleteDirectionsHandler {
  map;
  originPlaceId;
  destinationPlaceId;
  travelMode;
  directionsService;
  directionsRenderer;
  constructor(map) {
    this.map = map;
    this.originPlaceId = "";
    this.destinationPlaceId = "";
    this.travelMode = google.maps.TravelMode.WALKING;
    this.directionsService = new google.maps.DirectionsService();
    this.directionsRenderer = new google.maps.DirectionsRenderer();
    this.directionsRenderer.setMap(map);

    const originInput = document.getElementById("origin-input");
    const destinationInput = document.getElementById("destination-input");
    const modeSelector = document.getElementById("mode-selector");
    // Specify just the place data fields that you need.
    const originAutocomplete = new google.maps.places.Autocomplete(
      originInput,
      { fields: ["place_id"] },
    );
    // Specify just the place data fields that you need.
    const destinationAutocomplete = new google.maps.places.Autocomplete(
      destinationInput,
      { fields: ["place_id"] },
    );

    this.setupClickListener(
      "changemode-walking",
      google.maps.TravelMode.WALKING,
    );
    this.setupClickListener(
      "changemode-transit",
      google.maps.TravelMode.TRANSIT,
    );
    this.setupClickListener(
      "changemode-driving",
      google.maps.TravelMode.DRIVING,
    );
    this.setupPlaceChangedListener(originAutocomplete, "ORIG");
    this.setupPlaceChangedListener(destinationAutocomplete, "DEST");
    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(originInput);
    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(
      destinationInput,
    );
    this.map.controls[google.maps.ControlPosition.TOP_LEFT].push(modeSelector);
  }
  // Sets a listener on a radio button to change the filter type on Places
  // Autocomplete.
  setupClickListener(id, mode) {
    const radioButton = document.getElementById(id);

    radioButton.addEventListener("click", () => {
      this.travelMode = mode;
      this.route();
    });
  }
  setupPlaceChangedListener(autocomplete, mode) {
    autocomplete.bindTo("bounds", this.map);
    autocomplete.addListener("place_changed", () => {
      const place = autocomplete.getPlace();

      if (!place.place_id) {
        window.alert("Please select an option from the dropdown list.");
        return;
      }

      if (mode === "ORIG") {
        this.originPlaceId = place.place_id;
      } else {
        this.destinationPlaceId = place.place_id;
      }

      this.route();
    });
  }
  route() {
    if (!this.originPlaceId || !this.destinationPlaceId) {
      return;
    }

    const me = this;

    this.directionsService.route(
      {
        origin: { placeId: this.originPlaceId },
        destination: { placeId: this.destinationPlaceId },
        travelMode: this.travelMode,
      },
      (response, status) => {
        if (status === "OK") {
          me.directionsRenderer.setDirections(response);
        } else {
          window.alert("Directions request failed due to " + status);
        }
      },
    );
  }
}

window.initMap = initMap;
index.js

Note: The JavaScript is compiled from the TypeScript snippet.

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;
}

.controls {
  margin-top: 10px;
  border: 1px solid transparent;
  border-radius: 2px 0 0 2px;
  box-sizing: border-box;
  -moz-box-sizing: border-box;
  height: 32px;
  outline: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

#origin-input,
#destination-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: 200px;
}

#origin-input:focus,
#destination-input:focus {
  border-color: #4d90fe;
}

#mode-selector {
  color: #fff;
  background-color: #4d90fe;
  margin-left: 12px;
  padding: 5px 11px 0px 11px;
}

#mode-selector label {
  font-family: Roboto;
  font-size: 13px;
  font-weight: 300;
}
style.css

HTML

<html>
  <head>
    <title>Place Autocomplete and Directions</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div style="display: none">
      <input
        id="origin-input"
        class="controls"
        type="text"
        placeholder="Enter an origin location"
      />

      <input
        id="destination-input"
        class="controls"
        type="text"
        placeholder="Enter a destination location"
      />

      <div id="mode-selector" class="controls">
        <input
          type="radio"
          name="type"
          id="changemode-walking"
          checked="checked"
        />
        <label for="changemode-walking">Walking</label>

        <input type="radio" name="type" id="changemode-transit" />
        <label for="changemode-transit">Transit</label>

        <input type="radio" name="type" id="changemode-driving" />
        <label for="changemode-driving">Driving</label>
      </div>
    </div>

    <div id="map"></div>

    <!-- 
      The `defer` attribute causes the script 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>
index.html

Try Sample

JSFiddle.net Google Cloud Shell

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-directions 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