cachedDownload

character file path/name where the download should be saved

destfile

additional arguments, ultimately passed to <code>download.file</code>

This function wraps <code><a rd-options="utils:download.file" href="/link/utils%3A%3Adownload.file()?package=httpcache&version=1.0.2&to=utils%3Adownload.file" data-mini-rdoc="utils:download.file::utils::download.file()">utils::download.file()</a></code>. When
caching is enabled, <code>cachedDownload</code> will save a copy of the resulting
file to temporary storage and record that location in the query cache.
Subsequent download requests will just copy the cached file to the
destination path and not make a request across the network.

In order to improve performance for HTTP API clients, 'httpcache'
provides simple tools for caching and invalidating cache. It includes the
HTTP verb functions GET, PUT, PATCH, POST, and DELETE, which are drop-in
replacements for those in the 'httr' package. These functions are cache-aware
and provide default settings for cache invalidation suitable for RESTful
APIs; the package also enables custom cache-management strategies.
Finally, 'httpcache' includes a basic logging framework to facilitate the
measurement of HTTP request time and cache performance.

Neal Richardson

httpcache

Query Cache for HTTP Clients

cachedDownload function

This function wraps <code><a rd-options='utils:download.file' href='utils::download.file()'>utils::download.file()</a></code>. When
caching is enabled, <code>cachedDownload</code> will save a copy of the resulting
file to temporary storage and record that location in the query cache.
Subsequent download requests will just copy the cached file to the
destination path and not make a request across the network.

cachedDownload: Cache the result of a file download

Description

Usage

Arguments

Value