Queries the Internet Archive availability API (
http://archive.org/wayback/available) for the closest archived
snapshot of url and returns a directly-downloadable snapshot URL,
or NULL if no snapshot exists or the lookup fails. This is the
shared fetch failsafe the wider morie package family relies on: callers
attempt the live source first and fall back to this snapshot when the
source is unreachable.
Usage
wayback_snapshot_url(url, timestamp = NULL)
Arguments
- url
The original source URL to look up.
- timestamp
Optional 14-digit
YYYYMMDDhhmmss target; the API returns the snapshot closest to
it. Defaults to the most recent.
Value
A character scalar snapshot URL, or NULL.
Examples
# \donttest{
wayback_snapshot_url("https://www.r-project.org/")
#> [1] "https://web.archive.org/web/20260911112635/https://www.r-project.org/"
# }