1CURLOPT_POSTREDIR(3) curl_easy_setopt options CURLOPT_POSTREDIR(3)
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6 CURLOPT_POSTREDIR - how to act on an HTTP POST redirect
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9 #include <curl/curl.h>
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11 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTREDIR,
12 long bitmask);
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15 Pass a bitmask to control how libcurl acts on redirects after POSTs
16 that get a 301, 302 or 303 response back. A parameter with bit 0 set
17 (value CURL_REDIR_POST_301) tells the library to respect RFC 7231 (sec‐
18 tion 6.4.2 to 6.4.4) and not convert POST requests into GET requests
19 when following a 301 redirection. Setting bit 1 (value
20 CURL_REDIR_POST_302) makes libcurl maintain the request method after a
21 302 redirect whilst setting bit 2 (value CURL_REDIR_POST_303) makes
22 libcurl maintain the request method after a 303 redirect. The value
23 CURL_REDIR_POST_ALL is a convenience define that sets all three bits.
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25 The non-RFC behavior is ubiquitous in web browsers, so the library does
26 the conversion by default to maintain consistency. However, a server
27 may require a POST to remain a POST after such a redirection. This op‐
28 tion is meaningful only when setting CURLOPT_FOLLOWLOCATION(3).
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34 HTTP(S)
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37 CURL *curl = curl_easy_init();
38 if(curl) {
39 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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41 /* a silly POST example */
42 curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "data=true");
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44 /* example.com is redirected, so we tell libcurl to send POST on 301, 302 and
45 303 HTTP response codes */
46 curl_easy_setopt(curl, CURLOPT_POSTREDIR, CURL_REDIR_POST_ALL);
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48 curl_easy_perform(curl);
49 }
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52 Added in 7.17.1. This option was known as CURLOPT_POST301 up to 7.19.0
53 as it only supported the 301 then. CURL_REDIR_POST_303 was added in
54 7.26.0.
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57 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
58 if not.
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61 CURLOPT_FOLLOWLOCATION(3), CURLOPT_POSTFIELDS(3),
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65libcurl 7.76.1 December 31, 2020 CURLOPT_POSTREDIR(3)