httr makes http easy.
Each request returns a
response object which provides
easy access to status code, cookies, headers, timings, and other useful
info. The content of the request is available as a raw vector
content), character vector (
or parsed into an R object (
parsed_content), currently for
html, xml, json, png and jpeg).
httr supports OAuth 1.0 and 2.0. Use
oauth2.0_token get user tokens, and
sign_oauth2.0 to 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).