CDN Existence Checks — exists • artcdn

Check whether objects or prefixes exist in a bucket before attempting operations that would fail on missing assets.

Usage

cdn_has_prefix(bucket, prefix)

cdn_has_object(bucket, key)

Arguments

bucket: Character(1). A registered bucket name.
prefix: Character(1). Path prefix to check (without trailing slash).
key: Character(1). Full object key/path to check.

Value

TRUE if objects found, FALSE otherwise.

TRUE if object exists, FALSE otherwise.

Functions

cdn_has_prefix(): Check if any objects exist under a prefix
cdn_has_object(): Check if a specific object exists

Examples

if (FALSE) { # \dontrun{
cdn_has_prefix("art-data", "processed/artist-uuid/artwork-uuid")
} # }
if (FALSE) { # \dontrun{
cdn_has_object("art-public", "thumbnails/artist/artwork.jpeg")
} # }