wb_cache_dir() returns the path where cached API responses are stored.
wb_cache_delete() clears all cached responses.
Details
The cache is only used when enabled with options(worldbank.cache = TRUE).
Cached responses are stored for 1 day by default, but this can be customized with
options(worldbank.cache_max_age = seconds).
Examples
if (FALSE) { # \dontrun{
# enable caching
options(worldbank.cache = TRUE)
# view cache location
wb_cache_dir()
# clear the cache
wb_cache_delete()
} # }