curl / libcurl / API / curl_easy_setopt / CURLOPT_HTTPPOST

CURLOPT_HTTPPOST explained

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 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.

When setting CURLOPT_HTTPPOST, it will automatically set CURLOPT_NOBODY 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, CURLOPT_POST, curl_formadd, curl_formfree

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