convert function

geojson2vt.py

@@ -0,0 +1,37 @@
+import uuid
+import subprocess
+from pathlib import Path
+import json
+
+def geojson2vt(uploaded_geojson) -> str:
+    """Convert geojson file to vector tiles
+
+    Args:
+        uploaded_geojson: GeoJSON file uploaded by user
+
+    Returns:
+        str: vector tiles id
+    """
+    # save the uploaded file
+    # get a path to the saved geojson
+    uploaded_geojson_path = "land.geojson"  # replace value with the path to the saved geojson
+    vector_tiles_id = uploaded_geojson_path + uuid.uuid4().hex
+    tippecanoe_command = f"tippecanoe --maximum-zoom=g --output-to-directory={vector_tiles_id} --drop-densest-as-needed --no-tile-compression {uploaded_geojson_path}"
+    subprocess.run(tippecanoe_command, shell=True)  # https://stackoverflow.com/a/51950538/14742462
+    metadata_path = Path(vector_tiles_id, "metadata.json")
+    with open(metadata_path, "r") as metadata_file:
+        metadata = json.load(metadata_file)
+
+    with open("catalog.json", "r") as catalog_file:
+        catalog = json.load(catalog_file)
+        catalog.append(metadata)
+
+    with open("catalog.json", "w") as catalog_file:
+        json.dump(catalog, catalog_file, ensure_ascii=False)
+    return vector_tiles_id
+
+geojson2vt("ert")
+
+
+
+