.\" generated by cd2nroff 0.1 from CURLOPT_POSTREDIR.md .TH CURLOPT_POSTREDIR 3 "March 22 2024" libcurl .SH NAME CURLOPT_POSTREDIR \- how to act on an HTTP POST redirect .SH SYNOPSIS .nf #include 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 HTTP(S) .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 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. .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)