NAME

       CURLOPT_POSTREDIR - how to act on a HTTP POST redirect

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
                                 long bitmask);

DESCRIPTION

       Pass a bitmask to control how libcurl acts on redirects after POSTs that get a 301, 302 or
       303 response back.  A parameter with bit  0  set  (value  CURL_REDIR_POST_301)  tells  the
       library  to  respect  RFC 7231 (section 6.4.2 to 6.4.4) and not convert POST requests into
       GET requests when following a 301 redirection.  Setting bit 1 (value  CURL_REDIR_POST_302)
       makes libcurl maintain the request method after a 302 redirect whilst setting bit 2 (value
       CURL_REDIR_POST_303) makes libcurl maintain the request method after a 303  redirect.  The
       value CURL_REDIR_POST_ALL is a convenience define that sets all three bits.

       The non-RFC behaviour is ubiquitous in web browsers, so the library does the conversion by
       default to maintain consistency. However, a server may require a POST  to  remain  a  POST
       after    such   a   redirection.   This   option   is   meaningful   only   when   setting
       CURLOPT_FOLLOWLOCATION(3).

DEFAULT

       0

PROTOCOLS

       HTTP(S)

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

         /* a silly POST example */
         curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "data=true");

         /* example.com is redirected, so we tell libcurl to send POST on 301, 302 and
            303 HTTP response codes */
         curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);

         curl_easy_perform(curl);
       }

AVAILABILITY

       Added in 7.17.1. This option was  known  as  CURLOPT_POST301  up  to  7.19.0  as  it  only
       supported the 301 then. CURL_REDIR_POST_303 was added in 7.26.0.

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_FOLLOWLOCATION(3), CURLOPT_POSTFIELDS(3),