Errors

import time, httpx

def call(client, method, url, **kwargs):
    for attempt in range(5):
        r = client.request(method, url, **kwargs)
        if r.status_code < 400:
            return r.json()

        body = r.json()
        err = body.get("error", {})

        if r.status_code == 429:
            time.sleep(int(r.headers.get("Retry-After", 2 ** attempt)))
            continue
        if r.status_code >= 500:
            time.sleep(2 ** attempt)
            continue

        raise RuntimeError(
            f"{err.get('code')}: {err.get('message')} "
            f"(request_id={body.get('request_id')})"
        )

    raise RuntimeError("exhausted retries")

async function call(url, init = {}, attempt = 0) {
  const res = await fetch(url, init);
  if (res.ok) return res.json();

  const body = await res.json();

  if (res.status === 429) {
    const wait = Number(res.headers.get("Retry-After") || 2 ** attempt);
    await new Promise((r) => setTimeout(r, wait * 1000));
    return call(url, init, attempt + 1);
  }
  if (res.status >= 500 && attempt < 4) {
    await new Promise((r) => setTimeout(r, 2 ** attempt * 1000));
    return call(url, init, attempt + 1);
  }

  throw Object.assign(new Error(body.error?.message ?? "request failed"), {
    code: body.error?.code,
    type: body.error?.type,
    requestId: body.request_id,
  });
}