strava-to-kml.js

/**
 * 1. Go to http://labs.strava.com/gpx-to-route/
 * 2. Enter a Strava activity URL
 * 3. Run this snippet
 */
map.eachLayer(layer => {
  if (layer.getLatLngs) {
    const coordinates = layer.getLatLngs().map(latLng => {
      return [latLng.lng, latLng.lat];
    });
    console.log(
`<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
  <Folder>
    <name>Strava Export</name>
    <description>Exported on ${new Date().toLocaleString()}</description>
    <Placemark>
      <name>Activity</name>
      <description>Strava activity</description>
      <LineString>
        <coordinates>
          ${coordinates.map(coordinate => coordinate.join(',')).join(' ')}
        </coordinates>
      </LineString>
    </Placemark>
  </Folder>
</kml>`);
  }
});