download_session_asset {databraryr}

Download Asset From Databrary.

Description

Databrary stores file types (assets) of many types. This function downloads an asset based on its system-unique integer identifer (asset_id) and system-unique session (slot) identifier (session_id).

Usage

download_session_asset(
  asset_id = 1,
  session_id = 9807,
  file_name = NULL,
  target_dir = tempdir(),
  timeout_secs = REQUEST_TIMEOUT,
  vb = options::opt("vb"),
  rq = NULL
)

Arguments

asset_id

An integer. Asset id for target file. Default is 1.

session_id

An integer. Slot/session number where target file is stored. Default is 9807.

file_name

A character string. Name for downloaded file. Default is NULL.

target_dir

A character string. Directory to save the downloaded file. Default is a temporary directory given by a call to tempdir().

timeout_secs

An integer constant. The default value, defined in CONSTANTS.R is REQUEST_TIMEOUT. This value determines the default timeout value for the httr2 request object. When downloading large files, it can be useful to set this value to a large number.

vb

Show verbose messages. (Defaults to FALSE, overwritable using option 'databraryr.vb' or environment variable 'R_DATABRARYR_VB')

rq

A list in the form of an httr2 request object. Default is NULL.

Value

Full file name to the asset or NULL.

Examples

## Not run: 
download_session_asset() # Download's 'numbers' file from volume 1.
download_session_asset(asset_id = 11643, session_id = 9825, file_name = "rdk.mp4")
# Downloads a display with a random dot kinematogram (RDK).

## End(Not run)