Skip to content

httr

981 9 1 MIT
1.4.7 (8 May 2023) May 06 2012 816.7 thousand (month)

The aim of httr is to provide a wrapper for the curl package, customised to the demands of modern web APIs.

Key features:

  • Functions for the most important http verbs: GET(), HEAD(), PATCH(), PUT(), DELETE() and POST().
  • Automatic connection sharing across requests to the same website (by default, curl handles are managed automatically), cookies are maintained across requests, and a up-to-date root-level SSL certificate store is used.
  • Requests return a standard reponse object that captures the http status line, headers and body, along with 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.
  • You can convert http errors into R errors with stop_for_status().
  • Config functions make it easier to modify the request in common ways: set_cookies(), add_headers(), authenticate(), use_proxy(), verbose(), timeout(), content_type(), accept(), progress().
  • Support for OAuth 1.0 and 2.0 with oauth1.0_token() and oauth2.0_token(). The demo directory has eight OAuth demos: four for 1.0 (twitter, vimeo, withings and yahoo) and four for 2.0 (facebook, github, google, linkedin). OAuth credentials are automatically cached within a project.

Example Use


library(httr)

# GET requests:
resp <- GET("http://httpbin.org/get")
status_code(resp)  # status code
headers(resp)  # headers
str(content(resp))  # body

# POST requests: 
# Form encoded
resp <- POST(url, body = body, encode = "form")
# Multipart encoded
resp <- POST(url, body = body, encode = "multipart")
# JSON encoded
resp <- POST(url, body = body, encode = "json")

# setting cookies:
resp <- GET("http://httpbin.org/cookies", set_cookies("MeWant" = "cookies"))
content(r)$cookies  # get response cookies

Alternatives / Similar


1,476 1.0.4 (1 year, 8 months ago) Nov 22 2014 compare
101 1.4.2 (11 months ago) Nov 09 2016 compare
152 2.2.4 (3 years ago) Dec 22 2019 compare

Other Languages

51,415 2.31.0 (11 months ago) Feb 14 2011 compare
8,650 3.3.2 (5 months ago) Dec 28 2012 compare
104,139 1.6.8 (4 days ago) Aug 29 2014 compare
14,607 3.9.5 (25 days ago) Jul 26 2019 compare
got
13,956 14.2.1 (2 months ago) Mar 27 2014 compare
12,422 0.27.0 (2 months ago) Jul 26 2019 compare
16,538 9.0.2 (12 days ago) Aug 22 2011 compare
1,617 3.3.1 (4 months ago) Dec 11 2011 compare
5,665 2.9.0 (4 months ago) Dec 19 2009 compare
698 2.8.3 (7 years ago) Jul 25 2009 compare
1,154 0.110.0 (a month ago) Oct 31 2009 compare
5,761 0.22.0 (12 days ago) Jul 25 2009 compare
1,041 7.45.3 (2 months ago) Feb 25 2003 compare
4,063 1.4.1 (5 months ago) Oct 06 2009 compare
22,795 7.8.0 (8 months ago) Nov 14 2011 compare
1,219 1.1.7 (3 years ago) Oct 25 2009 compare
383 18.1.0 (4 months ago) Aug 06 2011 compare
1,885 v7.1.0-BETA1 (9 days ago) Apr 28 2019 compare
877 0.11.0 (3 years ago) Sep 25 2013 compare
583 23.11.0 (6 months ago) Dec 28 2012 compare
req
4,023 v3.43.4 (4 days ago) Jun 16 2023 compare
9,408 v2.13.1 (a day ago) Oct 28 2018 compare
506 1.1.4 (4 years ago) Apr 20 2010 compare
3,560 v2.0.11 (a month ago) Oct 06 2013 compare
1,921 1.2.1 (2 years ago) Nov 11 2011 compare
1,736 1.0.0 (10 days ago) Apr 14 2012 compare
2,988 0.12.0 (6 years ago) Mar 20 2015 compare