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