The aim of httr is to provide a wrapper for RCurl that is less configurable but customised to the demands of modern web APIs.
functions for the most important http verbs:
automatic connection sharing across requests to the same website (by default, curl handles are managed automatically), cookies are maintained across requests, and the standard root-level SSL certificate store is used.
a request object which captures the body of the request along with http status code, cookies, headers, timings and other useful information.
response content is available with
content()as a raw vector (
as = "raw"), a character vector (
as = "text"), or parsed into an R object (
as = "parsed"), currently for html, xml, json, png and jpeg).
convert http errors into R errors with
wrapper functions for the most common configuration options:
url parsing (with
parse_url) and modification (with
support for OAuth 1.0 and 2.0. Use
oauth2.0_tokento get user tokens, and
sign_oauth2.0to sign requests. The demos directory has six demos of using OAuth: three for 1.0 (linkedin, twitter and vimeo) and three for 2.0 (facebook, github, google).
httr is still under active development, so you may want to get the development version rather than the CRAN version. You can get the latest version from github with: