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 seconds the HTTP server suggests 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 CURLINFO_RETRY_AFTER(3) always returns the number of seconds to wait - or zero if there was no header or the header could not be parsed.

DEFAULT

Zero if there was no header.

PROTOCOLS

This functionality affects all supported protocols

EXAMPLE

int main(void)
{
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 curl 7.66.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_HEADERFUNCTION(3), CURLOPT_STDERR(3), curl_easy_header(3)