querySourceFeatures

by Tristen Brown

HTML

<script src="https://api.tiles.mapbox.com/mapbox-gl-js/v1.1.0/mapbox-gl.js"></script>
<link rel="stylesheet" href="https://api.tiles.mapbox.com/mapbox-gl-js/v1.1.0/mapbox-gl.css">
<div id="map"></div>

CSS

body {
    margin: 0;
    padding: 0;
  }

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

JavaScript

mapboxgl.accessToken = 'pk.eyJ1IjoidHJpc3RlbiIsImEiOiJjajZoOXU4Z2kwNnppMnlxd2d6bTFvZ2xtIn0.PP7AoUakMfeqdXFHdsY0oA';

const map = new mapboxgl.Map({
  container: 'map',
  style: 'mapbox://styles/tristen/cjwurvssn93s01cny9t91anji',
  center: [139.64299, 35.70138],
  zoom: 14
});

map.on('load', () => {
  map.on('moveend', () => {
    const features = map.querySourceFeatures('composite', {
      sourceLayer: 'road_v4',
      filter: ['==', ['get', 'class'], 'major_rail']
    });

    console.log(features);
  });
});