Publishing files to a SpatioTemporal Asset Catalog

The SpatioTemporal Asset Catalog (STAC) specification provides an easy approach for describing geospatial assets. STAC is typically implemented for imagery and other raster data.

pygeoapi implements STAC as an geospatial file browser through the FileSystem provider, supporting any level of file/directory nesting/hierarchy.

Configuring STAC in pygeoapi is done by simply pointing the data provider property to the given directory and specifying allowed file types:

Connection examples

    type: stac-collection
        - type: stac
          name: FileSystem
          data: /Users/tomkralidis/Dev/data/gdps
              - .grib2


rasterio and fiona are required for describing geospatial files.

pygeometa metadata control files

pygeoapi’s STAC filesystem fuctionality supports pygeometa MCF files residing in the same directory as data files. If an MCF file is found, it will be used as part of generating the STAC item metadata (e.g. a file named birds.csv having an associated birds.yml file). If no MCF file is found, then pygeometa will generate the STAC item metadata from configuration and by reading the data’s properties.

Publishing ESRI Shapefiles

ESRI Shapefile publishing requires to specify all required component file extensions (.shp, .shx, .dbf) with the provider file_types option.

Data access examples

From here, browse the filesystem accordingly.