CURLOPT_POSTREDIR - how to act on an HTTP POST redirect
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR, long bitmask);
CURLOPT_POSTREDIR(3) curl_easy_setopt options CURLOPT_POSTREDIR(3) NAME CURLOPT_POSTREDIR - how to act on an 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 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 CURLOPT_FOLLOWLOCATION(3). DEFAULT 0 PROTOCOLS HTTP(S) EXAMPLE 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); } 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. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLOPT_FOLLOWLOCATION(3), CURLOPT_POSTFIELDS(3), NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 December 31, 2020 CURLOPT_POSTREDIR(3)