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---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: CURLINFO_SPEED_DOWNLOAD
Section: 3
Source: libcurl
See-also:
- CURLINFO_SIZE_UPLOAD_T (3)
- CURLINFO_SPEED_UPLOAD (3)
- curl_easy_getinfo (3)
- curl_easy_setopt (3)
Protocol:
- All
Added-in: 7.4.1
---
# NAME
CURLINFO_SPEED_DOWNLOAD - download speed
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_SPEED_DOWNLOAD,
double *speed);
~~~
# DESCRIPTION
Pass a pointer to a double to receive the average download speed that curl
measured for the complete download. Measured in bytes/second.
CURLINFO_SPEED_DOWNLOAD_T(3) is a newer replacement that returns a more
sensible variable type.
# %PROTOCOLS%
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode result;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
/* Perform the request */
result = curl_easy_perform(curl);
if(!result) {
double speed;
result = curl_easy_getinfo(curl, CURLINFO_SPEED_DOWNLOAD, &speed);
if(!result) {
printf("Download speed %.0f bytes/sec\n", speed);
}
}
}
}
~~~
# DEPRECATED
Deprecated since 7.55.0.
# %AVAILABILITY%
# RETURN VALUE
curl_easy_getinfo(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).
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