Post request using cookies with cURL, RCurl and httr

Question

In Windows cURL I can post a web request similar to this:

curl  --dump-header cook.txt ^
  --data \"RURL=http=//www.example.com/r&user=bob&password=hell         


        

Answer 1

httr automatically preserves cookies across calls to the same site, as illustrated by these two calls to http://httpbin.org

GET("http://httpbin.org/cookies/set?a=1")
# Response [http://httpbin.org/cookies]
#   Status: 200
#   Content-type: application/json
# {
#    "cookies": {
#     "a": "1"
#   }
# } 

GET("http://httpbin.org/cookies")
# Response [http://httpbin.org/cookies]
#   Status: 200
#   Content-type: application/json
# {
#   "cookies": {
#     "a": "1"
#   }
# } 

Perhaps the problem is that you're sending your data as application/x-www-form-urlencoded, but the default in httr is multipart/form-data, so use multipart = FALSE in your POST call.