CURLINFO_RETRY_AFTER(3) curl_easy_getinfo options CURLINFO_RETRY_AFTER(3)
NAME
CURLINFO_RETRY_AFTER - returns the Retry-After retry delay
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RETRY_AFTER,
curl_off_t *retry);
DESCRIPTION
Pass a pointer to a curl_off_t variable to receive the number of sec-
onds the HTTP server suggests the client should wait until the next re-
quest is issued. The information from the "Retry-After:" header.
While the HTTP header might contain a fixed date string, the
CURLINFO_RETRY_AFTER(3) will always return number of seconds to wait -
or zero if there was no header or the header could not be parsed.
DEFAULT
Returns zero delay if there was no header.
PROTOCOLS
HTTP(S)
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://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);
}
AVAILABILITY
Added in 7.66.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
if not.
SEE ALSO
CURLOPT_STDERR(3), CURLOPT_HEADERFUNCTION(3),
libcurl 7.81.0 November 26, 2021 CURLINFO_RETRY_AFTER(3)
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