Man pages sections > man3 > CURLOPT_HTTPPOST

CURLOPT_HTTPPOST - specify the multipart formpost content

CURLOPT_HTTPPOST(3) curl_easy_setopt options CURLOPT_HTTPPOST(3)

NAME

CURLOPT_HTTPPOST - specify the multipart formpost content

SYNOPSIS

#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTPPOST, struct curl_httppost *formpost);

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 formpost 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 curl_formadd(3) 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 CURLOPT_HTTPHEADER(3).
 
When setting CURLOPT_HTTPPOST(3), it will automatically set CURLOPT_NOBODY(3) to 0.

DEFAULT

NULL

PROTOCOLS

HTTP

EXAMPLE

/* 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);

AVAILABILITY

As long as HTTP is enabled

RETURN VALUE

Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_POSTFIELDS(3), CURLOPT_POST(3), curl_formadd(3), curl_formfree(3),
May 17, 2016 libcurl 7.55.1