By Intersecting Polygon

Learn how to get results from intersecting polygons.

For this request, you must send a POST request. It is formatted as follows (as an example Javascript fetch request):

const requestBody = {
    key : "your_api_key",
    maps : "<category>",
    polygon_geojson : featureCollection
};

fetch("https://native-land.ca/api/index.php", {
    method : "POST",
    body : JSON.stringify(requestBody)
})

The requestBody that you send must have all three parameters to function. maps must be a comma-separated string of territories, languages, and/or treaties.

An example polygon_geojson would be:

{
  “type”: “FeatureCollection”,
  “features”: [
    {
      “type”: “Feature”,
      “properties”: {},
      “geometry”: {
        “type”: “Polygon”,
        “coordinates”: [
          [
            [
              -105.556640625,
              58.17070248348609
            ],
            [
              -107.09472656249999,
              57.11238500793404
            ],
            [
              -104.853515625,
              56.145549500679074
            ],
            [
              -98.6572265625,
              56.70450561416937
            ],
            [
              -97.55859375,
              57.89149735271034
            ],
            [
              -99.8876953125,
              58.49369382056807
            ],
            [
              -103.7548828125,
              58.768200159239576
            ],
            [
              -105.556640625,
              58.17070248348609
            ]
          ]
        ]
      }
    }
  ]
}

Please avoid sending extremely details or complex polygons, as this slows down the response and puts an extra load on the server.

We are using PostgreSQL with PostGIS to speed up your spatial queries.