Errors

{
  "statusCode": 422,
  "code": "outside_24h_window",
  "message": "(#131047) Re-engagement message",
  "request_id": "9fb64a88-f0f1-4a36-a1e8-0ba3eef81360"
}

async function sendWhatsApp(payload, idempotencyKey, attempt = 1) {
  const res = await fetch('https://botzo.net/api/send', {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${process.env.BOTZO_API_KEY}`,
      Accept: 'application/json',
      'Content-Type': 'application/json',
      'Idempotency-Key': idempotencyKey,
    },
    body: JSON.stringify(payload),
  });
  const body = await res.json();
  if (res.ok) return body.message_id;

  const retryable = [409, 429, 500, 502, 503].includes(res.status);
  if (retryable && attempt < 5) {
    await new Promise((r) => setTimeout(r, 2 ** attempt * 1000));
    return sendWhatsApp(payload, idempotencyKey, attempt + 1);
  }
  if (body.code === 'outside_24h_window') {
    return sendTemplateInstead(payload.phone);
  }
  throw new Error(`Botzo ${body.code} (${body.request_id}): ${body.message}`);
}

function sendWhatsApp(array $payload, string $idempotencyKey): ?string
{
    for ($attempt = 1; $attempt <= 5; $attempt++) {
        $response = Http::withToken(env('BOTZO_API_KEY'))
            ->acceptJson()
            ->timeout(30)
            ->withHeaders(['Idempotency-Key' => $idempotencyKey])
            ->post('https://botzo.net/api/send', $payload);

        if ($response->successful()) {
            return $response->json('message_id');
        }
        if (! in_array($response->status(), [409, 429, 500, 502, 503], true)) {
            logger()->warning('Botzo send failed', $response->json());
            return null;
        }
        sleep(2 ** $attempt);
    }
    return null;
}