genereate gpx file to simulate location one iPhone device using xcode

generate-gpx.js

// 1. find location latitude & longitude of desired location and name of location
// 2. call generate_gpx using previous data

// alternative, you can use http://gpx-poi.com to generate .gpx file
function generate_gpx(lat,lon,name,time='2017-07-01T02:24:02Z'){

  return `<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<gpx
xmlns="http://www.topografix.com/GPX/1/1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd"
version="1.1"
creator="gpx-poi.com">
   <wpt lat="${lat}" lon="${lon}">
      <time>${time}</time>
      <name>${name}</name>
   </wpt>
</gpx>`;

}