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 handle.
curl_download(url, destfile, quiet = TRUE, mode = "wb", handle = new_handle())A character string naming the URL of a resource to be downloaded.
A character string with the name where the downloaded file is saved. Tilde-expansion is performed.
If TRUE, suppress status messages (if any), and the
progress bar.
A character string specifying the mode with which to write the file.
Useful values are "w", "wb" (binary), "a" (append)
and "ab".
a curl handle object
Path of downloaded file (invisibly).
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.
# NOT RUN {
# Download large file
# }
# NOT RUN {
url <- "http://www2.census.gov/acs2011_5yr/pums/csv_pus.zip"
tmp <- tempfile()
curl_download(url, tmp)
# }
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