1CURLINFO_RETRY_AFTER(3) curl_easy_getinfo options CURLINFO_RETRY_AFTER(3)
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6 CURLINFO_RETRY_AFTER - returns the Retry-After retry delay
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9 #include <curl/curl.h>
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11 CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RETRY_AFTER,
12 curl_off_t *retry);
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15 Pass a pointer to a curl_off_t variable to receive the number of sec‐
16 onds the HTTP server suggesets the client should wait until the next
17 request is issued. The information from the "Retry-After:" header.
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19 While the HTTP header might contain a fixed date string, the
20 CURLINFO_RETRY_AFTER(3) will always return number of seconds to wait -
21 or zero if there was no header or the header couldn't be parsed.
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24 Returns zero delay if there was no header.
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27 HTTP(S)
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30 CURL *curl = curl_easy_init();
31 if(curl) {
32 CURLcode res;
33 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
34 res = curl_easy_perform(curl);
35 if(res == CURLE_OK) {
36 curl_off_t wait = 0;
37 curl_easy_getinfo(curl, CURLINFO_RETRY_AFTER, &wait);
38 if(wait)
39 printf("Wait for %" CURL_FORMAT_CURL_OFF_T " seconds\n", wait);
40 }
41 curl_easy_cleanup(curl);
42 }
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45 Added in curl 7.66.0
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48 Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION
49 if not.
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52 CURLOPT_STDERR(3), CURLOPT_HEADERFUNCTION(3),
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56libcurl 7.71.1 March 23, 2020 CURLINFO_RETRY_AFTER(3)