How to make a map with pins using Leaflet

This example shows how to make a map with pins using Leaflet JS. Load a geoJSON of points in Leaflet JS and add your custom pins or icons.


npm install --save @maptiler/leaflet-maptilersdk leaflet

main.js

import { MaptilerLayer, MapStyle } from '@maptiler/leaflet-maptilersdk';
import L from 'leaflet';
import 'leaflet/dist/leaflet.css';

const key = 'YOUR_MAPTILER_API_KEY_HERE';
const map = L.map('map').setView([45.9767521, 7.6569418], 12);
const mtLayer = new MaptilerLayer({
  apiKey: key,
  style: MapStyle.BASE, // optional
}).addTo(map);

const leafIcon = new L.icon({
  iconUrl: "https://docs.maptiler.com/sdk-js/examples/custom-points-icon-png/underground.png", //your custom pin
  iconSize: [24, 26],
});

async function loadGeoJSON() {
  const response = await fetch(`https://api.maptiler.com/data/YOUR_MAPTILER_DATASET_ID_HERE/features.json?key=${key}`);
  const geoJSON = await response.json();
  L.geoJSON(geoJSON, {
    pointToLayer: function (geoJsonPoint, latlng) {
      return L.marker(latlng, {icon: leafIcon});
    }
  }).addTo(map);
}

loadGeoJSON();

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="robots" content="noindex">
  <title>How to make a map with pins using Leaflet | NPM example</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
  <div id="map"></div>
  <script type="module" src="./main.js"></script>
</body>
</html>

style.css

#map {position: absolute; top: 0; right: 0; bottom: 0; left: 0;}

<!DOCTYPE html>
<html>

<head>
  <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
  <title>Marker with custom icon</title>
  <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
  <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
  <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" />
  <script
    src="https://cdn.maptiler.com/leaflet-maptilersdk/v4.1.0/leaflet-maptilersdk.umd.min.js"></script>
  <style>
    #map {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
    }
  </style>
</head>

<body>
  <div id="map"></div>
  <script>
    const key = 'YOUR_MAPTILER_API_KEY_HERE';
    const map = L.map('map').setView([45.9767521, 7.6569418], 12);
    const mtLayer = L.maptiler.maptilerLayer({
      apiKey: key,
      style: L.maptiler.MapStyle.BASE, // optional
    }).addTo(map);

    const leafIcon = new L.icon({
      iconUrl: "https://docs.maptiler.com/sdk-js/examples/custom-points-icon-png/underground.png", //your custom pin
      iconSize: [24, 26],
    });

    async function loadGeoJSON() {
      const response = await fetch(`https://api.maptiler.com/data/YOUR_MAPTILER_DATASET_ID_HERE/features.json?key=${key}`);
      const geoJSON = await response.json();
      L.geoJSON(geoJSON, {
        pointToLayer: function (geoJsonPoint, latlng) {
          return L.marker(latlng, { icon: leafIcon });
        }
      }).addTo(map);
    }

    loadGeoJSON();

  </script>
</body>

</html>

Replace YOUR_MAPTILER_API_KEY_HERE with your own API key. Make sure to secure the key before you publish it.

Learn more

Check out the Leaflet marker with a custom icon to learn How to customize Leaflet icons.

How to make a map with pins using Leaflet

NPM module setup

main.js

index.html

style.css

Basic JavaScript setup

Learn more