Rate limits

async function fetchWithRetry(url, options, maxAttempts = 5) {
  for (let attempt = 1; ; attempt++) {
    const response = await fetch(url, options);
    if (response.status !== 429 || attempt === maxAttempts) return response;

    const retryAfter = Number(response.headers.get("Retry-After"));
    const backoff = Math.min(2 ** (attempt - 1), 60);
    const seconds = retryAfter > 0 ? retryAfter : backoff + Math.random();

    await new Promise((resolve) => setTimeout(resolve, seconds * 1000));
  }
}

import random
import time

import requests


def request_with_retry(method, url, max_attempts=5, **kwargs):
    for attempt in range(1, max_attempts + 1):
        response = requests.request(method, url, **kwargs)
        if response.status_code != 429 or attempt == max_attempts:
            return response

        retry_after = response.headers.get("Retry-After")
        if retry_after and retry_after.isdigit():
            delay = int(retry_after)
        else:
            delay = min(2 ** (attempt - 1), 60) + random.random()
        time.sleep(delay)

<?php
function requestWithRetry(string $url, array $curlOptions, int $maxAttempts = 5): array
{
    for ($attempt = 1; ; $attempt++) {
        $retryAfter = null;
        $ch = curl_init($url);
        curl_setopt_array($ch, $curlOptions + [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_HEADERFUNCTION => function ($ch, $header) use (&$retryAfter) {
                if (stripos($header, "Retry-After:") === 0) {
                    $retryAfter = (int) trim(substr($header, 12));
                }
                return strlen($header);
            },
        ]);
        $body = curl_exec($ch);
        $status = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);

        if ($status !== 429 || $attempt === $maxAttempts) {
            return [$status, $body];
        }

        $delay = $retryAfter ?: min(2 ** ($attempt - 1), 60) + mt_rand() / mt_getrandmax();
        usleep((int) ($delay * 1000000));
    }
}