Directions Service

This example demonstrates the use of the DirectionsService object to fetch directions between different cities.

Read the documentation.

TypeScript

function initMap(): void {
  const directionsService = new google.maps.DirectionsService();
  const directionsRenderer = new google.maps.DirectionsRenderer();
  const map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    {
      zoom: 7,
      center: { lat: 41.85, lng: -87.65 },
    }
  );
  directionsRenderer.setMap(map);

  const onChangeHandler = function () {
    calculateAndDisplayRoute(directionsService, directionsRenderer);
  };
  (document.getElementById("start") as HTMLElement).addEventListener(
    "change",
    onChangeHandler
  );
  (document.getElementById("end") as HTMLElement).addEventListener(
    "change",
    onChangeHandler
  );
}

function calculateAndDisplayRoute(
  directionsService: google.maps.DirectionsService,
  directionsRenderer: google.maps.DirectionsRenderer
) {
  directionsService.route(
    {
      origin: {
        query: (document.getElementById("start") as HTMLInputElement).value,
      },
      destination: {
        query: (document.getElementById("end") as HTMLInputElement).value,
      },
      travelMode: google.maps.TravelMode.DRIVING,
    },
    (response, status) => {
      if (status === "OK") {
        directionsRenderer.setDirections(response);
      } else {
        window.alert("Directions request failed due to " + status);
      }
    }
  );
}
index.ts

JavaScript

function initMap() {
  const directionsService = new google.maps.DirectionsService();
  const directionsRenderer = new google.maps.DirectionsRenderer();
  const map = new google.maps.Map(document.getElementById("map"), {
    zoom: 7,
    center: { lat: 41.85, lng: -87.65 },
  });
  directionsRenderer.setMap(map);

  const onChangeHandler = function () {
    calculateAndDisplayRoute(directionsService, directionsRenderer);
  };
  document.getElementById("start").addEventListener("change", onChangeHandler);
  document.getElementById("end").addEventListener("change", onChangeHandler);
}

function calculateAndDisplayRoute(directionsService, directionsRenderer) {
  directionsService.route(
    {
      origin: {
        query: document.getElementById("start").value,
      },
      destination: {
        query: document.getElementById("end").value,
      },
      travelMode: google.maps.TravelMode.DRIVING,
    },
    (response, status) => {
      if (status === "OK") {
        directionsRenderer.setDirections(response);
      } else {
        window.alert("Directions request failed due to " + 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>Directions 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">
      <b>Start: </b>
      <select id="start">
        <option value="chicago, il">Chicago</option>
        <option value="st louis, mo">St Louis</option>
        <option value="joplin, mo">Joplin, MO</option>
        <option value="oklahoma city, ok">Oklahoma City</option>
        <option value="amarillo, tx">Amarillo</option>
        <option value="gallup, nm">Gallup, NM</option>
        <option value="flagstaff, az">Flagstaff, AZ</option>
        <option value="winona, az">Winona</option>
        <option value="kingman, az">Kingman</option>
        <option value="barstow, ca">Barstow</option>
        <option value="san bernardino, ca">San Bernardino</option>
        <option value="los angeles, ca">Los Angeles</option>
      </select>
      <b>End: </b>
      <select id="end">
        <option value="chicago, il">Chicago</option>
        <option value="st louis, mo">St Louis</option>
        <option value="joplin, mo">Joplin, MO</option>
        <option value="oklahoma city, ok">Oklahoma City</option>
        <option value="amarillo, tx">Amarillo</option>
        <option value="gallup, nm">Gallup, NM</option>
        <option value="flagstaff, az">Flagstaff, AZ</option>
        <option value="winona, az">Winona</option>
        <option value="kingman, az">Kingman</option>
        <option value="barstow, ca">Barstow</option>
        <option value="san bernardino, ca">San Bernardino</option>
        <option value="los angeles, ca">Los Angeles</option>
      </select>
    </div>
    <div id="map"></div>
  </body>
</html>
sample.html

All

<!DOCTYPE html>
<html>
  <head>
    <title>Directions 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 directionsService = new google.maps.DirectionsService();
        const directionsRenderer = new google.maps.DirectionsRenderer();
        const map = new google.maps.Map(document.getElementById("map"), {
          zoom: 7,
          center: { lat: 41.85, lng: -87.65 },
        });
        directionsRenderer.setMap(map);

        const onChangeHandler = function () {
          calculateAndDisplayRoute(directionsService, directionsRenderer);
        };
        document
          .getElementById("start")
          .addEventListener("change", onChangeHandler);
        document
          .getElementById("end")
          .addEventListener("change", onChangeHandler);
      }

      function calculateAndDisplayRoute(directionsService, directionsRenderer) {
        directionsService.route(
          {
            origin: {
              query: document.getElementById("start").value,
            },
            destination: {
              query: document.getElementById("end").value,
            },
            travelMode: google.maps.TravelMode.DRIVING,
          },
          (response, status) => {
            if (status === "OK") {
              directionsRenderer.setDirections(response);
            } else {
              window.alert("Directions request failed due to " + status);
            }
          }
        );
      }
    </script>
  </head>
  <body>
    <div id="floating-panel">
      <b>Start: </b>
      <select id="start">
        <option value="chicago, il">Chicago</option>
        <option value="st louis, mo">St Louis</option>
        <option value="joplin, mo">Joplin, MO</option>
        <option value="oklahoma city, ok">Oklahoma City</option>
        <option value="amarillo, tx">Amarillo</option>
        <option value="gallup, nm">Gallup, NM</option>
        <option value="flagstaff, az">Flagstaff, AZ</option>
        <option value="winona, az">Winona</option>
        <option value="kingman, az">Kingman</option>
        <option value="barstow, ca">Barstow</option>
        <option value="san bernardino, ca">San Bernardino</option>
        <option value="los angeles, ca">Los Angeles</option>
      </select>
      <b>End: </b>
      <select id="end">
        <option value="chicago, il">Chicago</option>
        <option value="st louis, mo">St Louis</option>
        <option value="joplin, mo">Joplin, MO</option>
        <option value="oklahoma city, ok">Oklahoma City</option>
        <option value="amarillo, tx">Amarillo</option>
        <option value="gallup, nm">Gallup, NM</option>
        <option value="flagstaff, az">Flagstaff, AZ</option>
        <option value="winona, az">Winona</option>
        <option value="kingman, az">Kingman</option>
        <option value="barstow, ca">Barstow</option>
        <option value="san bernardino, ca">San Bernardino</option>
        <option value="los angeles, ca">Los Angeles</option>
      </select>
    </div>
    <div id="map"></div>
  </body>
</html>

inline.html
function initMap() { const directionsService = new google.maps.DirectionsService(); const directionsRenderer = new google.maps.DirectionsRenderer(); const map = new google.maps.Map(document.getElementById("map"), { zoom: 7, center: { lat: 41.85, lng: -87.65 }, }); directionsRenderer.setMap(map); const onChangeHandler = function () { calculateAndDisplayRoute(directionsService, directionsRenderer); }; document.getElementById("start").addEventListener("change", onChangeHandler); document.getElementById("end").addEventListener("change", onChangeHandler); } function calculateAndDisplayRoute(directionsService, directionsRenderer) { directionsService.route( { origin: { query: document.getElementById("start").value, }, destination: { query: document.getElementById("end").value, }, travelMode: google.maps.TravelMode.DRIVING, }, (response, status) => { if (status === "OK") { directionsRenderer.setDirections(response); } else { window.alert("Directions request failed due to " + status); } } ); }
/* 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>Directions 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> <!-- jsFiddle will insert css and js --> </head> <body> <div id="floating-panel"> <b>Start: </b> <select id="start"> <option value="chicago, il">Chicago</option> <option value="st louis, mo">St Louis</option> <option value="joplin, mo">Joplin, MO</option> <option value="oklahoma city, ok">Oklahoma City</option> <option value="amarillo, tx">Amarillo</option> <option value="gallup, nm">Gallup, NM</option> <option value="flagstaff, az">Flagstaff, AZ</option> <option value="winona, az">Winona</option> <option value="kingman, az">Kingman</option> <option value="barstow, ca">Barstow</option> <option value="san bernardino, ca">San Bernardino</option> <option value="los angeles, ca">Los Angeles</option> </select> <b>End: </b> <select id="end"> <option value="chicago, il">Chicago</option> <option value="st louis, mo">St Louis</option> <option value="joplin, mo">Joplin, MO</option> <option value="oklahoma city, ok">Oklahoma City</option> <option value="amarillo, tx">Amarillo</option> <option value="gallup, nm">Gallup, NM</option> <option value="flagstaff, az">Flagstaff, AZ</option> <option value="winona, az">Winona</option> <option value="kingman, az">Kingman</option> <option value="barstow, ca">Barstow</option> <option value="san bernardino, ca">San Bernardino</option> <option value="los angeles, ca">Los Angeles</option> </select> </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. 

npm i -g '@googlemaps/js-samples'
googlemaps-js-samples init directions-simple DESTINATION_FOLDER

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