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//proc/self/root/opt/curlssl/share/man/man3/CURLOPT_POST.3
.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at http://curl.haxx.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" ************************************************************************** .\" .TH CURLOPT_POST 3 "17 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options" .SH NAME CURLOPT_POST \- request a HTTP POST .SH SYNOPSIS #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POST, long post); .SH DESCRIPTION A parameter set to 1 tells libcurl to do a regular HTTP post. This will also make the library use a "Content-Type: application/x-www-form-urlencoded" header. (This is by far the most commonly used POST method). Use one of \fICURLOPT_POSTFIELDS(3)\fP or \fICURLOPT_COPYPOSTFIELDS(3)\fP options to specify what data to post and \fICURLOPT_POSTFIELDSIZE(3)\fP or \fICURLOPT_POSTFIELDSIZE_LARGE(3)\fP to set the data size. Optionally, you can provide data to POST using the \fICURLOPT_READFUNCTION(3)\fP and \fICURLOPT_READDATA(3)\fP options but then you must make sure to not set \fICURLOPT_POSTFIELDS(3)\fP to anything but NULL. When providing data with a callback, you must transmit it using chunked transfer-encoding or you must set the size of the data with the \fICURLOPT_POSTFIELDSIZE(3)\fP or \fICURLOPT_POSTFIELDSIZE_LARGE(3)\fP options. To enable chunked encoding, you simply pass in the appropriate Transfer-Encoding header, see the post-callback.c example. You can override the default POST Content-Type: header by setting your own with \fICURLOPT_HTTPHEADER(3)\fP. Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue" header. You can disable this header with \fICURLOPT_HTTPHEADER(3)\fP as usual. If you use POST to a HTTP 1.1 server, you can send data without knowing the size before starting the POST if you use chunked encoding. You enable this by adding a header like "Transfer-Encoding: chunked" with \fICURLOPT_HTTPHEADER(3)\fP. With HTTP 1.0 or without chunked transfer, you must specify the size in the request. When setting \fICURLOPT_POST(3)\fP to 1, it will automatically set \fICURLOPT_NOBODY(3)\fP to 0. If you issue a POST request and then want to make a HEAD or GET using the same re-used handle, you must explicitly set the new request type using \fICURLOPT_NOBODY(3)\fP or \fICURLOPT_HTTPGET(3)\fP or similar. .SH DEFAULT 0, disabled .SH PROTOCOLS HTTP .SH EXAMPLE TODO .SH AVAILABILITY Along with HTTP .SH RETURN VALUE Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not. .SH "SEE ALSO" .BR CURLOPT_POSTFIELDS "(3), " CURLOPT_HTTPPOST "(3), "
