I want OSM administrative boundaries from http://global.mapit.mysociety.org/area/14455.html. I can get the geodata in different formats there, but the attribute data always is a separate JSON file. I want them both in just one file, or to be able to merge the information.
I haven't found a solution to merge the GeoJSON.
What's the workflow to get the two files joined and saved as a shapefile, for example?