The code will now return a catalog.json, but a collection.json allows to specify spatial extent and some more metadata.
STAC Catalog is a simple, flexible JSON file of links that provides a structure to organize and browse STAC Items. A series of best practices helps make recommendations for creating real world STAC Catalogs.
STAC Collection is an extension of the STAC Catalog with additional information such as the extents, license, keywords, providers, etc that describe STAC Items that fall within the Collection.
The code will now return a catalog.json, but a collection.json allows to specify spatial extent and some more metadata.