A subject id code. If not specified returns all top level subjects.
Use search_subjects or get_subjects to get subject id.
level
A number from 0 to 6, filters the returned unit by its level.
If NULL (default) no level filters apply. Use get_levels to find more info.
year
A vector of years. If NULL (default) returns data for all available years.
sort
A type of sorting, "id" (default), "-id", "name", "-name"
lang
A language of returned data, "pl" (default), "en"
...
Other arguments passed on to GET. For example
a proxy parameters, see details.
Details
To use a proxy to connect, a use_proxy can be
passed to GET. For example
get_request(id, filters,
config = httr::use_proxy(url, port, username, password)).