| caching {finbif} | R Documentation |
Caching FinBIF downloads
Description
Working with cached data from FinBIF.
Turning caching off
By default, local caching of most FinBIF API requests is turned on. Any
request made using the same arguments will only request data from FinBIF in
the first instance and subsequent requests will use the local cache while it
exists. This will increase the speed of repeated requests and save bandwidth
and computation for the FinBIF server. Caching can be turned off temporarily
by setting the cache = FALSE in the requesting function.
Setting options(finbif_use_cache = FALSE) will turn off caching for the
current session.
Using filesystem caching
By default cached requests are stored in memory. This can be changed by
setting the file path for the current session with
options(finbif_cache_path = "path/to/cache").
Using database caching
Caching can also be done using a database. Using a database for caching
requires the packages DBI, blob and a database backend package such as
RSQLite to be installed. To use the database for caching simply pass the
connection objected created with DBI::dbConnect to the finbif_cache_path
option (e.g.,
db <- DBI::dbConnect(RSQLite::SQLite(), "my-db.sqlite");
options(finbif_cache_path = db)
).
Clearing the cache
The cache files can deleted finbif_clear_cache().