httr is organised around the five most common http verbs:
GET, PATCH,
POST, HEAD,
PUT, and DELETE.
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 (text_content),
or parsed into an R object (parsed_content), currently for
html, xml, json, png and jpeg).
Requests can be modified by various config options like
set_cookies, add_headers,
authenticate, use_proxy,
verbose, and timeout
httr supports OAuth 1.0 and 2.0. Use oauth1.0_token and
oauth2.0_token to get user tokens, and
sign_oauth1.0 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).
Useful links: