This example demonstrates the use of the DirectionsService object
to fetch directions for a route including waypoints.
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: 6,
center: { lat: 41.85, lng: -87.65 },
}
);
directionsRenderer.setMap(map);
(document.getElementById("submit") as HTMLElement).addEventListener(
"click",
() => {
calculateAndDisplayRoute(directionsService, directionsRenderer);
}
);
}
function calculateAndDisplayRoute(
directionsService: google.maps.DirectionsService,
directionsRenderer: google.maps.DirectionsRenderer
) {
const waypts: google.maps.DirectionsWaypoint[] = [];
const checkboxArray = document.getElementById(
"waypoints"
) as HTMLSelectElement;
for (let i = 0; i < checkboxArray.length; i++) {
if (checkboxArray.options[i].selected) {
waypts.push({
location: (checkboxArray[i] as HTMLOptionElement).value,
stopover: true,
});
}
}
directionsService
.route({
origin: (document.getElementById("start") as HTMLInputElement).value,
destination: (document.getElementById("end") as HTMLInputElement).value,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING,
})
.then((response) => {
directionsRenderer.setDirections(response);
const route = response.routes[0];
const summaryPanel = document.getElementById(
"directions-panel"
) as HTMLElement;
summaryPanel.innerHTML = "";
// For each route, display summary information.
for (let i = 0; i < route.legs.length; i++) {
const routeSegment = i + 1;
summaryPanel.innerHTML +=
"<b>Route Segment: " + routeSegment + "</b><br>";
summaryPanel.innerHTML += route.legs[i].start_address + " to ";
summaryPanel.innerHTML += route.legs[i].end_address + "<br>";
summaryPanel.innerHTML += route.legs[i].distance!.text + "<br><br>";
}
})
.catch((e) => window.alert("Directions request failed due to " + status));
}
declare global {
interface Window {
initMap: () => void;
}
}
window.initMap = initMap;
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: 6,
center: { lat: 41.85, lng: -87.65 },
});
directionsRenderer.setMap(map);
document.getElementById("submit").addEventListener("click", () => {
calculateAndDisplayRoute(directionsService, directionsRenderer);
});
}
function calculateAndDisplayRoute(directionsService, directionsRenderer) {
const waypts = [];
const checkboxArray = document.getElementById("waypoints");
for (let i = 0; i < checkboxArray.length; i++) {
if (checkboxArray.options[i].selected) {
waypts.push({
location: checkboxArray[i].value,
stopover: true,
});
}
}
directionsService
.route({
origin: document.getElementById("start").value,
destination: document.getElementById("end").value,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING,
})
.then((response) => {
directionsRenderer.setDirections(response);
const route = response.routes[0];
const summaryPanel = document.getElementById("directions-panel");
summaryPanel.innerHTML = "";
// For each route, display summary information.
for (let i = 0; i < route.legs.length; i++) {
const routeSegment = i + 1;
summaryPanel.innerHTML +=
"<b>Route Segment: " + routeSegment + "</b><br>";
summaryPanel.innerHTML += route.legs[i].start_address + " to ";
summaryPanel.innerHTML += route.legs[i].end_address + "<br>";
summaryPanel.innerHTML += route.legs[i].distance.text + "<br><br>";
}
})
.catch((e) => window.alert("Directions request failed due to " + status));
}
window.initMap = initMap;
CSS
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#container {
height: 100%;
display: flex;
}
#sidebar {
flex-basis: 15rem;
flex-grow: 1;
padding: 1rem;
max-width: 30rem;
height: 100%;
box-sizing: border-box;
overflow: auto;
}
#map {
flex-basis: 0;
flex-grow: 4;
height: 100%;
}
#directions-panel {
margin-top: 10px;
}
HTML
<html>
<head>
<title>Waypoints in Directions</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 id="container">
<div id="map"></div>
<div id="sidebar">
<div>
<b>Start:</b>
<select id="start">
<option value="Halifax, NS">Halifax, NS</option>
<option value="Boston, MA">Boston, MA</option>
<option value="New York, NY">New York, NY</option>
<option value="Miami, FL">Miami, FL</option>
</select>
<br />
<b>Waypoints:</b> <br />
<i>(Ctrl+Click or Cmd+Click for multiple selection)</i> <br />
<select multiple id="waypoints">
<option value="montreal, quebec">Montreal, QBC</option>
<option value="toronto, ont">Toronto, ONT</option>
<option value="chicago, il">Chicago</option>
<option value="winnipeg, mb">Winnipeg</option>
<option value="fargo, nd">Fargo</option>
<option value="calgary, ab">Calgary</option>
<option value="spokane, wa">Spokane</option>
</select>
<br />
<b>End:</b>
<select id="end">
<option value="Vancouver, BC">Vancouver, BC</option>
<option value="Seattle, WA">Seattle, WA</option>
<option value="San Francisco, CA">San Francisco, CA</option>
<option value="Los Angeles, CA">Los Angeles, CA</option>
</select>
<br />
<input type="submit" id="submit" />
</div>
<div id="directions-panel"></div>
</div>
</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&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-directions-waypoints https://github.com/googlemaps/js-samples.gitcd js-samplesnpm inpm start
Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME.
git checkout sample-SAMPLE_NAMEnpm inpm start