This script pulls .geojson file links from a URL, puts them into a list, and then loops through the list to get the multipolygon shapefiles from each geojson file aggregated into a single geojson file.
Example of Greece postal code shapefiles retrieved with script (plotted in tableau): https://public.tableau.com/views/GreecePostalCodesMapped/Dashboard1?:language=en-US&:display_count=n&:origin=viz_share_link
