You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.8 KiB
92 lines
3.8 KiB
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2019, 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 https://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 "September 16, 2020" "libcurl 7.73.0" "curl_easy_setopt options"
|
|
|
|
.SH NAME
|
|
CURLOPT_POST \- request an 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 an 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. (Since 7.66.0, libcurl will
|
|
automatically use chunked encoding for POSTs if the size is unknown.)
|
|
|
|
When setting \fICURLOPT_POST(3)\fP to 1, libcurl will automatically set
|
|
\fICURLOPT_NOBODY(3)\fP and \fICURLOPT_HTTPGET(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
|
|
.nf
|
|
CURL *curl = curl_easy_init();
|
|
if(curl) {
|
|
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin");
|
|
curl_easy_setopt(curl, CURLOPT_POST, 1L);
|
|
|
|
/* set up the read callback with CURLOPT_READFUNCTION */
|
|
|
|
ret = curl_easy_perform(curl);
|
|
|
|
curl_easy_cleanup(curl);
|
|
}
|
|
.fi
|
|
.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), "
|