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CURLOPT_TRANSFER_ENCODING - ask for HTTP Transfer Encoding

NAME  SYNOPSIS  DESCRIPTION  DEFAULT  PROTOCOLS  EXAMPLE  AVAILABILITY  RETURN VALUE  SEE ALSO 

NAME

CURLOPT_TRANSFER_ENCODING − ask for HTTP Transfer Encoding

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRANSFER_ENCODING,
long enable);

DESCRIPTION

Pass a long set to 1L to enable or 0 to disable.

Adds a request for compressed Transfer Encoding in the outgoing HTTP request. If the server supports this and so desires, it can respond with the HTTP response sent using a compressed Transfer−Encoding that is automatically uncompressed by libcurl on reception.

Transfer−Encoding differs slightly from the Content−Encoding you ask for with CURLOPT_ACCEPT_ENCODING(3) in that a Transfer−Encoding is strictly meant to be for the transfer and thus must be decoded before the data arrives in the client. Traditionally, Transfer−Encoding has been much less used and supported by both HTTP clients and HTTP servers.

DEFAULT

0

PROTOCOLS

This functionality affects http only

EXAMPLE

int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
curl_easy_setopt(curl, CURLOPT_TRANSFER_ENCODING, 1L);
curl_easy_perform(curl);
}
}

AVAILABILITY

Added in curl 7.21.6

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).

SEE ALSO

CURLOPT_ACCEPT_ENCODING(3), CURLOPT_HTTP_TRANSFER_DECODING(3)


Updated 2026-06-01 - jenkler.se | uex.se