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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Add a default marker to a web map</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v2.13.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v2.13.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'CHANGEME';
const map = new mapboxgl.Map({
container: 'map',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/streets-v12',
center: [0.1276, 51.5072],
zoom: 8
});
async function fetchLocations() {
const locations = [];
let postcodes = ["WC1A 2JX", "SW1A 0AA"];
for (const postcode of postcodes) {
const response = await fetch(`https://api.postcodes.io/postcodes/${postcode}`);
const data = await response.json();
if (data && data.result) {
locations.push(data.result);
}
}
return locations;
}
fetchLocations().then((yolo) => {
console.log(yolo);
// Create a default Marker and add it to the map.
// TODO loop over yolo instead.
const marker1 = new mapboxgl.Marker()
.setLngLat([yolo[0].longitude, yolo[0].latitude])
.addTo(map);
const marker2 = new mapboxgl.Marker()
.setLngLat([yolo[1].longitude, yolo[1].latitude])
.addTo(map);
})
</script>
</body>
</html>