Make markers draggable

This example map shows a draggable marker that displays its updated position when dragging is finished (the dragend event is fired).

Read the documentation.

TypeScript

const mapElement = document.querySelector('gmp-map') as google.maps.MapElement;

 async function initMap() {
    // Request needed libraries.
    const { Map, InfoWindow } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
    const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

    const infoWindow = new InfoWindow();

    const draggableMarker = new AdvancedMarkerElement({
        position: {lat: 37.39094933041195, lng: -122.02503913145092},
        gmpDraggable: true,
        title: "This marker is draggable.",
    });
    mapElement.append(draggableMarker);

    draggableMarker.addListener('dragend', (event) => {
        const position = draggableMarker.position as google.maps.LatLng;
        infoWindow.close();
        infoWindow.setContent(`Pin dropped at: ${position.lat}, ${position.lng}`);
        infoWindow.open(draggableMarker.map, draggableMarker);
    });
}

initMap();
index.ts

JavaScript

const mapElement = document.querySelector('gmp-map');
async function initMap() {
    // Request needed libraries.
    const { Map, InfoWindow } = await google.maps.importLibrary("maps");
    const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
    const infoWindow = new InfoWindow();
    const draggableMarker = new AdvancedMarkerElement({
        position: { lat: 37.39094933041195, lng: -122.02503913145092 },
        gmpDraggable: true,
        title: "This marker is draggable.",
    });
    mapElement.append(draggableMarker);
    draggableMarker.addListener('dragend', (event) => {
        const position = draggableMarker.position;
        infoWindow.close();
        infoWindow.setContent(`Pin dropped at: ${position.lat}, ${position.lng}`);
        infoWindow.open(draggableMarker.map, draggableMarker);
    });
}
initMap();
index.js

CSS

/* 
 * Always set the map height explicitly to define the size of the div element
 * that contains the map. 
 */
gmp-map {
  height: 100%;
}

/* 
 * Optional: Makes the sample page fill the window. 
 */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

style.css

HTML

<html>
  <head>
    <title>Draggable Advanced Marker</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
    <!-- prettier-ignore -->
    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly"});</script>
  </head>
  <body>
    <gmp-map center="37.39094933041195,-122.02503913145092" zoom="14" map-id="4504f8b37365c3d0"></gmp-map>
  </body>
</html>
index.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 https://github.com/googlemaps-samples/js-api-samples.git
  cd samples/advanced-markers-draggable
  npm i
  npm start