CURLOPT_HTTPPOST(3)        Library Functions Manual        CURLOPT_HTTPPOST(3)

NAME
       CURLOPT_HTTPPOST - multipart formpost content

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTPPOST,
                                 struct curl_httppost *formpost);

DESCRIPTION
       This option is deprecated. Use CURLOPT_MIMEPOST(3) instead.

       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), libcurl automatically sets
       CURLOPT_NOBODY(3) to 0.

DEFAULT
       NULL

PROTOCOLS
       HTTP

EXAMPLE
       int main(void)
       {
         struct curl_httppost *formpost;
         struct curl_httppost *lastptr;

         /* 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);

         CURL *curl = curl_easy_init();
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_HTTPPOST, formpost);
           curl_easy_perform(curl);
           curl_easy_cleanup(curl);
         }
         curl_formfree(formpost);
       }

AVAILABILITY
       As long as HTTP is enabled. Deprecated in 7.56.0.

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

SEE ALSO
       CURLOPT_MIMEPOST(3), CURLOPT_POST(3), CURLOPT_POSTFIELDS(3),
       curl_formadd(3), curl_formfree(3), curl_mime_init(3)

libcurl                          April 26 2024             CURLOPT_HTTPPOST(3)