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🗂️ Geopackage (GPKG) Writer

The Geopackage writer exports your results as an Geopackage (gpkg) file.

📜 Format Details​

  • Delivery: Always a .gpkg file.
  • MIME type: application/geopackage+sqlite
  • CRS handling: Output CRS is defined by output.epsg in your request.

⚙️ Example Config​

{
  "input": { "format": "geojson" },
  "transformations": [
    { "type": "buffer", "params": { "distance": 100, "units": "meters" } }
  ],
  "output": {
    "format": "gpkg",
    "epsg": 4326
  }
}

📑 Example API Call​

curl -X POST https://api.geoflip.io/transform \
  -F 'config={
    "input":{"format":"geojson"},
    "transformations":[{"type":"buffer","params":{"distance":100,"units":"meters"}}],
    "output":{"format":"gpkg","epsg":4326}
  }' \
  -F "input_file=@/path/to/aoi.geojson;type=application/geo+json"

Response

{ "job_id": "abcd-ef01-2345-6789" }

Poll status:

curl https://api.geoflip.io/result/status/abcd-ef01-2345-6789

When status is SUCCESS, download from the output_url:

curl -O https://api.geoflip.io/result/output/abcd-ef01-2345-6789

This downloads a .gpkg file of you converted geojson attributes and geometry.

✅ Notes​

  • Attributes from your input are preserved in the .gpkg where applicable.
  • Works with any supported reader input (geojson, shp, dxf) and transformation pipeline.

➡️ Next Steps​