docs/libcurl/opts/CURLOPT_HTTPPOST.3

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.TH CURLOPT_HTTPPOST 3 "November 04, 2020" "libcurl 7.78.0" "curl_easy_setopt options"

.SH NAME
CURLOPT_HTTPPOST \- specify the multipart formpost content
.SH SYNOPSIS
.nf
#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTPPOST,
                          struct curl_httppost *formpost);
.SH DESCRIPTION
Tells libcurl you want a multipart/formdata HTTP POST to be made and you
instruct what data to pass on to the server in the \fIformpost\fP argument.
Pass a pointer to a linked list of curl_httppost structs as parameter.  The
easiest way to create such a list, is to use \fIcurl_formadd(3)\fP as
documented. The data in this list must remain intact as long as the curl
transfer is alive and is using it.

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.

When setting \fICURLOPT_HTTPPOST(3)\fP, it will automatically set
\fICURLOPT_NOBODY(3)\fP to 0.

This option is deprecated! Do not use it. Use \fICURLOPT_MIMEPOST(3)\fP
instead after having prepared mime data.
.SH DEFAULT
NULL
.SH PROTOCOLS
HTTP
.SH EXAMPLE
.nf
/* Fill in the file upload field. This makes libcurl load data from
   the given file name when curl_easy_perform() is called. */
curl_formadd(&formpost,
             &lastptr,
             CURLFORM_COPYNAME, "sendfile",
             CURLFORM_FILE, "postit2.c",
             CURLFORM_END);

/* Fill in the filename field */
curl_formadd(&formpost,
             &lastptr,
             CURLFORM_COPYNAME, "filename",
             CURLFORM_COPYCONTENTS, "postit2.c",
             CURLFORM_END);

/* Fill in the submit field too, even if this is rarely needed */
curl_formadd(&formpost,
             &lastptr,
             CURLFORM_COPYNAME, "submit",
             CURLFORM_COPYCONTENTS, "send",
             CURLFORM_END);
.fi
.SH AVAILABILITY
As long as HTTP is enabled. Deprecated in 7.56.0.
.SH RETURN VALUE
Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_POSTFIELDS "(3), " CURLOPT_POST "(3), " CURLOPT_MIMEPOST "(3),"
.BR curl_formadd "(3), " curl_formfree "(3), " curl_mime_init "(3)"