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.TH CURLINFO_STARTTRANSFER_TIME 3 "November 04, 2020" "libcurl 7.77.0" "curl_easy_getinfo options"

.SH NAME
CURLINFO_STARTTRANSFER_TIME \- get the time until the first byte is received
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_STARTTRANSFER_TIME, double *timep);
.SH DESCRIPTION
Pass a pointer to a double to receive the time, in seconds, it took from the
start until the first byte is received by libcurl. This includes
\fICURLINFO_PRETRANSFER_TIME(3)\fP and also the time the server needs to
calculate the result.

When a redirect is followed, the time from each request is added together.

See also the TIMES overview in the \fIcurl_easy_getinfo(3)\fP man page.
.SH PROTOCOLS
All
.SH EXAMPLE
.nf
curl = curl_easy_init();
if(curl) {
  double start;
  curl_easy_setopt(curl, CURLOPT_URL, url);
  res = curl_easy_perform(curl);
  if(CURLE_OK == res) {
    res = curl_easy_getinfo(curl, CURLINFO_STARTTRANSFER_TIME, &start);
    if(CURLE_OK == res) {
      printf("Time: %.1f", start);
    }
  }
  /* always cleanup */
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in 7.9.2
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR curl_easy_getinfo "(3), " curl_easy_setopt "(3), " CURLINFO_STARTTRANSFER_TIME_T "(3)"
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