httr is organised around the six 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 twelve demos of using OAuth: four for 1.0
(linkedin, twitter, vimeo, and yahoo) and eight for 2.0 (azure, facebook,
github, google, linkedin, reddit, yahoo, and yelp).
Useful links: