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CURLINFO_RETRY_AFTER(3) Library Functions Manual 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 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. This option used to return a negative wait time if the server provided a date in the past. Since 8.12.0, a negative wait time is returned as zero. In any case we recommend checking that the wait time is within an accept- able range for your circumstance. 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 result; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com"); result = curl_easy_perform(curl); if(result == 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 curl_easy_getinfo(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3). SEE ALSO CURLOPT_HEADERFUNCTION(3), CURLOPT_STDERR(3), curl_easy_header(3) libcurl 2026-06-11 CURLINFO_RETRY_AFTER(3)
NAME | SYNOPSIS | DESCRIPTION | DEFAULT | PROTOCOLS | EXAMPLE | AVAILABILITY | RETURN VALUE | SEE ALSO
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