Libcurl implementation of C_download (the "internal" download method)
with added support for https, ftps, gzip, etc. Default behavior is identical
to download.file(), but request can be fully configured by passing
a custom curl::handle().
Usage
download_xml(
url,
file = basename(url),
quiet = TRUE,
mode = "wb",
handle = curl::new_handle()
)
download_html(
url,
file = basename(url),
quiet = TRUE,
mode = "wb",
handle = curl::new_handle()
)Arguments
- url
A character string naming the URL of a resource to be downloaded.
- file
A character string with the name where the downloaded file is saved.
- quiet
If
TRUE, suppress status messages (if any), and the progress bar.- mode
A character string specifying the mode with which to write the file. Useful values are
"w","wb"(binary),"a"(append) and"ab".- handle
a curl handle object
Details
The main difference between curl_download and curl_fetch_disk
is that curl_download checks the http status code before starting the
download, and raises an error when status is non-successful. The behavior of
curl_fetch_disk on the other hand is to proceed as normal and write
the error page to disk in case of a non success response.
For a more advanced download interface which supports concurrent requests and resuming large files, have a look at the multi_download function.