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) will always return number of seconds to wait - or zero if there was no header or the header couldn't 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 curl 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),