url_accessible {xfun}

R Documentation

Test if a URL is accessible

Description

Try to send a HEAD request to a URL if curl is available, otherwise try to download the URL via xfun::download_file(), and see if it succeeds.

Usage

url_accessible(x, use_curl = loadable("curl"))

Arguments

x	A URL as a character string.
use_curl	Whether to use the curl package.

Value

TRUE or FALSE.

Examples

xfun::url_accessible("https://yihui.org")

---