Man page - curlopt_httppost(3)

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Manual

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

This functionality affects http only

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);
}

DEPRECATED

Deprecated in 7.56.0.

AVAILABILITY

Added in curl 7.1

RETURN VALUE

curl_easy_setopt(3) returns a CURLcode indicating success or error.

CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).