NAME¶
CURLOPT_POSTFIELDS - specify data to POST to server
SYNOPSIS¶
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDS, char *postdata);
DESCRIPTION¶
Pass a char * as parameter, pointing to the full data to send in a HTTP POST
operation. You must make sure that the data is formatted the way you want the
server to receive it. libcurl will not convert or encode it for you in any
way. For example, the web server may assume that this data is url-encoded.
The data pointed to is NOT copied by the library: as a consequence, it must be
preserved by the calling application until the associated transfer finishes.
This POST is a normal application/x-www-form-urlencoded kind (and libcurl will
set that Content-Type by default when this option is used), which is commonly
used by HTML forms. Change Content-Type with
CURLOPT_HTTPHEADER(3).
Using
CURLOPT_POSTFIELDS(3) implies
CURLOPT_POST(3).
If you want to do a zero-byte POST, you need to set
CURLOPT_POSTFIELDSIZE(3) explicitly to zero, as simply setting
CURLOPT_POSTFIELDS(3) to NULL or "" just effectively disables
the sending of the specified string. libcurl will instead assume that you'll
send the POST data using the read callback!
Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue"
header. You can disable this header with
CURLOPT_HTTPHEADER(3) as
usual.
To make multipart/formdata posts (aka RFC2388-posts), check out the
CURLOPT_HTTPPOST(3) option combined with
curl_formadd(3).
DEFAULT¶
NULL
PROTOCOLS¶
HTTP
EXAMPLE¶
TODO
AVAILABILITY¶
Always
RETURN VALUE¶
Returns CURLE_OK
SEE ALSO¶
CURLOPT_POSTFIELDSIZE(3),
CURLOPT_READFUNCTION(3),