.\" generated by cd2nroff 0.1 from CURLOPT_POSTREDIR.md
.TH CURLOPT_POSTREDIR 3 "2024-11-18" libcurl
.SH NAME
CURLOPT_POSTREDIR \- how to act on an HTTP POST redirect
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
                          long bitmask);
.fi
.SH 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
\fBCURL_REDIR_POST_301\fP) 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 \fBCURL_REDIR_POST_302\fP) makes
libcurl maintain the request method after a 302 redirect whilst setting bit 2
(value \fBCURL_REDIR_POST_303\fP) makes libcurl maintain the request method
after a 303 redirect. The value \fBCURL_REDIR_POST_ALL\fP is a convenience
define that sets all three bits.

The non\-RFC behavior 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 \fICURLOPT_FOLLOWLOCATION(3)\fP.
.SH DEFAULT
0
.SH PROTOCOLS
This functionality affects http only
.SH EXAMPLE
.nf
int main(void)
{
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "https://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);
  }
}
.fi
.SH HISTORY
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.
.SH AVAILABILITY
Added in curl 7.19.1
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH SEE ALSO
.BR CURLINFO_EFFECTIVE_METHOD (3),
.BR CURLINFO_REDIRECT_COUNT (3),
.BR CURLOPT_FOLLOWLOCATION (3),
.BR CURLOPT_MAXREDIRS (3),
.BR CURLOPT_POSTFIELDS (3)