a base::character vector of either
length 1 (if successful) or length 0 (if not successful).
Arguments
redcap_uri
The
uri/url
of the REDCap server
typically formatted as "https://server.org/apps/redcap/api/".
Required.
token
The user-specific string that serves as the password for a
project. Required.
verbose
A boolean value indicating if messages should be printed
to the R console during the operation. The verbose output might contain
sensitive information (e.g. PHI), so turn this off if the output might
be visible somewhere public. Optional.
The value passed to the handle parameter of
httr::POST().
This is useful for only unconventional authentication approaches. It
should be NULL for most institutions. Optional.
Details
If the API call is unsuccessful, a value of character(0) will
be returned (i.e., an empty vector). This ensures that a the function
will always return an object of class
base::character.