CURLOPT_MIMEPOST(3) Library Functions Manual CURLOPT_MIMEPOST(3)
NAME
CURLOPT_MIMEPOST - send data from mime structure
SYNOPSIS
#include <curl/curl.h>
curl_mime *mime;
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MIMEPOST, mime);
DESCRIPTION
Pass a mime handle previously obtained from curl_mime_init(3).
This setting is supported by the HTTP protocol to post forms and by the
SMTP and IMAP protocols to provide the email data to send/upload.
This option is the preferred way of posting an HTTP form, replacing and
extending the CURLOPT_HTTPPOST(3) option.
When setting CURLOPT_MIMEPOST(3) to NULL, libcurl resets the request
type for HTTP to the default to disable the POST. Typically that would
mean it is reset to GET. Instead you should set a desired request method
explicitly.
PROTOCOLS
This functionality affects http, imap and smtp
EXAMPLE
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
curl_mime *multipart = curl_mime_init(curl);
if(multipart) {
curl_mimepart *part = curl_mime_addpart(multipart);
curl_mime_name(part, "name");
curl_mime_data(part, "daniel", CURL_ZERO_TERMINATED);
part = curl_mime_addpart(multipart);
curl_mime_name(part, "project");
curl_mime_data(part, "curl", CURL_ZERO_TERMINATED);
part = curl_mime_addpart(multipart);
curl_mime_name(part, "logotype-image");
curl_mime_filedata(part, "curl.png");
/* Set the form info */
curl_easy_setopt(curl, CURLOPT_MIMEPOST, multipart);
curl_easy_perform(curl); /* post away */
curl_mime_free(multipart); /* free the post data */
}
}
}
AVAILABILITY
Added in curl 7.56.0
RETURN VALUE
This returns CURLE_OK.
SEE ALSO
CURLOPT_HTTPPOST(3), CURLOPT_POSTFIELDS(3), CURLOPT_PUT(3),
curl_mime_init(3)
libcurl 2026-07-12 CURLOPT_MIMEPOST(3)
Generated by dwww version 1.16 on Sat Oct 3 05:06:32 CEST 2026.