Add API

app.py

@@ -381,29 +381,15 @@ def calculate_geometry_metrics(file_url: str):
     found, and returns the results in JSON format.
     """
     try:
-        # 1. Fetch and read the spatial file from the URL
-        input_gdf = get_gdf_from_url(file_url)
-
-        # 2. Preprocess the GeoDataFrame
-        processed_gdf = preprocess_gdf(input_gdf)
-        
-        # 3. Isolate the first valid polygon
-        polygon_gdf = processed_gdf[processed_gdf.geometry.type == 'Polygon']
-        if polygon_gdf.empty:
-            raise ValueError("No valid polygon found in the provided file.")
-        
-        # Take just the first polygon for this example
-        first_polygon_gdf = polygon_gdf.iloc[[0]]
-
-        # 4. Convert to a suitable Coordinate Reference System for measurement
-        metric_gdf = to_best_crs(first_polygon_gdf)
+        input_gdf = get_gdf_from_file(file_obj) if file_obj is not None else get_gdf_from_url(url_str)
+        input_gdf = preprocess_gdf(input_gdf)
+        geometry_gdf = next((input_gdf.iloc[[i]] for i in range(len(input_gdf)) if is_valid_polygon(input_gdf.iloc[[i]])), None)
+        geometry_gdf = to_best_crs(geometry_gdf)
 
         # 5. Calculate area and perimeter
-        area_sq_meters = metric_gdf.area.item()
-        perimeter_meters = metric_gdf.length.item()
+        area_sq_meters = geometry_gdf.area.item()/ 10000
+        perimeter_meters = geometry_gdf.length.item()
         
-        area_hectares = area_sq_meters / 10000
-
         # 6. Return the results
         return {
             "area": round(area_hectares, 4),