test.geojson

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "label": "This is a geojson on the gist.github.com"
      },
      "geometry": {
        "type": "LineString",
        "coordinates": [
          [
            139.6870422363281,
            35.73425097869431
          ],
          [
            139.76943969726562,
            35.73425097869431
          ],
          [
            139.73922729492188,
            35.66399091134812
          ],
          [
            139.70352172851562,
            35.698571062054015
          ]
        ]
      }
    }
  ]
}