Create a draggable marker

Drag the Marker to a new location on a map and populate its coordinates in a display.


npm install --save @maptiler/sdk

main.js

import { Map, MapStyle, config } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';

config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const coordinates = document.getElementById('coordinates');
const map = new Map({
    container: 'map',
    style: MapStyle.STREETS,
    center: [0, 0],
    zoom: 2
});

const marker = new maptilersdk.Marker({
    draggable: true
})
    .setLngLat([0, 0])
    .addTo(map);

function onDragEnd() {
    const lngLat = marker.getLngLat();
    coordinates.style.display = 'block';
    coordinates.innerHTML =
        'Longitude: ' + lngLat.lng + '<br />Latitude: ' + lngLat.lat;
}

marker.on('dragend', onDragEnd);

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="robots" content="noindex">
  <title>Create a draggable marker | NPM example</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
  <style>
  .coordinates {
      background: rgba(0, 0, 0, 0.5);
      color: #fff;
      position: absolute;
      bottom: 40px;
      left: 10px;
      padding: 5px 10px;
      margin: 0;
      font-size: 11px;
      line-height: 18px;
      border-radius: 3px;
      display: none;
  }
  </style>

  <div id="map"></div>
  <pre id="coordinates" class="coordinates"></pre>
  <script type="module" src="./main.js"></script>
</body>
</html>

style.css

body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}

<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Create a draggable Marker</title>
  <script src="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.umd.min.js"></script>
  <link href="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.css" rel="stylesheet" />
  <style>
    body {
      margin: 0;
      padding: 0;
    }

    #map {
      position: absolute;
      top: 0;
      bottom: 0;
      width: 100%;
    }

    .coordinates {
      background: rgba(0, 0, 0, 0.5);
      color: #fff;
      position: absolute;
      bottom: 40px;
      left: 10px;
      padding: 5px 10px;
      margin: 0;
      font-size: 11px;
      line-height: 18px;
      border-radius: 3px;
      display: none;
    }
  </style>
</head>

<body>
  <div id="map"></div>
  <pre id="coordinates" class="coordinates"></pre>

  <script>
    maptilersdk.config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
    const coordinates = document.getElementById('coordinates');
    const map = new maptilersdk.Map({
      container: 'map',
      style: maptilersdk.MapStyle.STREETS,
      center: [0, 0],
      zoom: 2
    });

    const marker = new maptilersdk.Marker({
      draggable: true
    })
      .setLngLat([0, 0])
      .addTo(map);

    function onDragEnd() {
      const lngLat = marker.getLngLat();
      coordinates.style.display = 'block';
      coordinates.innerHTML =
        'Longitude: ' + lngLat.lng + '<br />Latitude: ' + lngLat.lat;
    }

    marker.on('dragend', onDragEnd);
  </script>
</body>

</html>