Reverse geocoding

Reverse geocoding turns a coordinate into the nearest address, street or place. types limits the kind of result, radius the search distance in metres.

Code

// Reverse geocoding: click the map, get the nearest address, street or place.
const TOKEN = 'YOUR_TOKEN'; // your public token (mx_pk_…) from https://account.mapx.at
// Adds the token to every request MapLibre makes to mapx.at (style, tiles, fonts, sprites), never to other hosts.
const transformRequest = (url) => ({ url: /^https:\/\/([\w-]+\.)?mapx\.at\//.test(url) ? url + (url.includes('?') ? '&' : '?') + 'access_token=' + TOKEN : url });
const AUTH = { headers: { Authorization: 'Bearer ' + TOKEN } };

maplibregl.addProtocol('pmtiles', new pmtiles.Protocol().tile);

const map = new maplibregl.Map({ transformRequest, container: 'map', style: 'https://api.mapx.at/v1/styles/streets', center: [16.3725, 48.2085], zoom: 15 });
map.addControl(new maplibregl.NavigationControl());
const popup = new maplibregl.Popup({ closeButton: false });

map.on('click', async (e) => {
  const { lng, lat } = e.lngLat;
  try {
    const res = await fetch(`https://api.mapx.at/v1/reverse?lng=${lng}&lat=${lat}&limit=1&types=address,street,place`, AUTH);
    if (!res.ok) throw new Error('HTTP ' + res.status);
    const f = (await res.json()).features[0];
    popup.setLngLat(e.lngLat).setText(f ? f.place_name : 'Nothing found nearby').addTo(map);
  } catch (err) { popup.setLngLat(e.lngLat).setText('Error: ' + err.message).addTo(map); }
});

Complete HTML file

Save and open in a browser. All it needs is MapLibre GL JS 4.7.1 and pmtiles 3.2.1 from a CDN, plus your public token (replace YOUR_TOKEN), no build.

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>mapx Beispiel</title>
<link rel="stylesheet" href="https://unpkg.com/maplibre-gl@4.7.1/dist/maplibre-gl.css">
<script src="https://unpkg.com/maplibre-gl@4.7.1/dist/maplibre-gl.js"></script>
<script src="https://unpkg.com/pmtiles@3.2.1/dist/pmtiles.js"></script>
<style>html,body{margin:0;font:14px system-ui,sans-serif}#map{height:70vh}</style>
</head>
<body>
<div id="map"></div>
<script>
// Reverse geocoding: click the map, get the nearest address, street or place.
const TOKEN = 'YOUR_TOKEN'; // your public token (mx_pk_…) from https://account.mapx.at
// Adds the token to every request MapLibre makes to mapx.at (style, tiles, fonts, sprites), never to other hosts.
const transformRequest = (url) => ({ url: /^https:\/\/([\w-]+\.)?mapx\.at\//.test(url) ? url + (url.includes('?') ? '&' : '?') + 'access_token=' + TOKEN : url });
const AUTH = { headers: { Authorization: 'Bearer ' + TOKEN } };

maplibregl.addProtocol('pmtiles', new pmtiles.Protocol().tile);

const map = new maplibregl.Map({ transformRequest, container: 'map', style: 'https://api.mapx.at/v1/styles/streets', center: [16.3725, 48.2085], zoom: 15 });
map.addControl(new maplibregl.NavigationControl());
const popup = new maplibregl.Popup({ closeButton: false });

map.on('click', async (e) => {
  const { lng, lat } = e.lngLat;
  try {
    const res = await fetch(`https://api.mapx.at/v1/reverse?lng=${lng}&lat=${lat}&limit=1&types=address,street,place`, AUTH);
    if (!res.ok) throw new Error('HTTP ' + res.status);
    const f = (await res.json()).features[0];
    popup.setLngLat(e.lngLat).setText(f ? f.place_name : 'Nothing found nearby').addTo(map);
  } catch (err) { popup.setLngLat(e.lngLat).setText('Error: ' + err.message).addTo(map); }
});
</script>
</body>
</html>

APIs used

Geocoding GET api.mapx.at/v1/reverse

Address validation Truck route with options