CURLOPT_POSTREDIR(3) curl_easy_setopt options CURLOPT_POSTREDIR(3)NAMECURLOPT_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 (sec‐
tion 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
PROTOCOLSHTTP(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 ALSOCURLOPT_FOLLOWLOCATION(3), CURLOPT_POSTFIELDS(3),
libcurl 7.37.0 19 Jun 2014 CURLOPT_POSTREDIR(3)
