Libcurl implementation of
C_download (the "internal" download method)
with added support for https, ftps, gzip, etc. Default behavior is identical
download.file, but request can be fully configured by passing
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.
A character string specifying the mode with which to write the file.
Useful values are
a curl handle object
The main difference between
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.
Path of downloaded file (invisibly).
Advanced download interface: multi_download
# Download large file ## Not run: url <- "http://www2.census.gov/acs2011_5yr/pums/csv_pus.zip" tmp <- tempfile() curl_download(url, tmp) ## End(Not run)
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