Milradar to GeoJSON Converter

A simple HTTP endpoint that fetches military aircraft data from milradar.com API and converts it to GeoJSON format.

Usage

Make a GET request to the /planes.geojson endpoint:

curl https://your-val-town-url/planes.geojson

Data Format

Input (Milradar API)

[
  {
    "id": 8409,
    "plane_type_id": 1409,
    "lat": 47.611162,
    "lon": -68.5568,
    "gspeed": 433,
    "type": "C17",
    "callsign": "BRK81   ",
    "track": 199,
    "is_flying": true
  }
]

Output (GeoJSON)

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Point",
        "coordinates": [-68.5568, 47.611162]
      },
      "properties": {
        "id": 8409,
        "plane_type_id": 1409,
        "gspeed": 433,
        "type": "C17",
        "callsign": "BRK81",
        "track": 199,
        "is_flying": true
      }
    }
  ]
}

Key Transformations

Coordinate System: Converts from lat, lon to GeoJSON [longitude, latitude] format
Data Cleaning: Trims whitespace from callsigns
Structure: Wraps individual points in GeoJSON Feature format
Collection: Groups all features into a FeatureCollection

Response Headers

Content-Type: application/geo+json
Cache-Control: public, max-age=60 (1 minute cache)
Access-Control-Allow-Origin: * (CORS enabled)

Error Handling

Returns appropriate HTTP status codes:

200 OK: Successful conversion
500 Internal Server Error: Conversion failure (with error details in JSON response)

brendanashworth

militaryplanes