File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / docs / libcurl / opts / CURLINFO_RETRY_AFTER.3
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Wed Jun 3 10:01:15 2020 UTC (4 years ago) by misho
Branches: curl, MAIN
CVS tags: v7_70_0p4, HEAD
curl

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.TH CURLINFO_RETRY_AFTER 3 "March 23, 2020" "libcurl 7.70.0" "curl_easy_getinfo options"

.SH NAME
CURLINFO_RETRY_AFTER \- returns the Retry-After retry delay
.SH SYNOPSIS
#include <curl/curl.h>

CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RETRY_AFTER, curl_off_t *retry);
.SH DESCRIPTION
Pass a pointer to a curl_off_t variable to receive the number of seconds the
HTTP server suggesets the client should wait until the next request is
issued. The information from the "Retry-After:" header.

While the HTTP header might contain a fixed date string, the
\fICURLINFO_RETRY_AFTER(3)\fP will always return number of seconds to wait -
or zero if there was no header or the header couldn't be parsed.
.SH DEFAULT
Returns zero delay if there was no header.
.SH PROTOCOLS
HTTP(S)
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
  CURLcode res;
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
  res = curl_easy_perform(curl);
  if(res == CURLE_OK) {
    curl_off_t wait = 0;
    curl_easy_getinfo(curl, CURLINFO_RETRY_AFTER, &wait);
    if(wait)
      printf("Wait for %" CURL_FORMAT_CURL_OFF_T " seconds\\n", wait);
  }
  curl_easy_cleanup(curl);
}
.fi
.SH AVAILABILITY
Added in curl 7.66.0
.SH RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_STDERR "(3), " CURLOPT_HEADERFUNCTION "(3), "

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