網站或介面返回 502 怎麼辦？

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.APIYI_API_KEY,
  baseURL: "https://api.apiyi.com/v1",
  maxRetries: 0, // 關閉 SDK 預設重試，由下面的邏輯接管
});

const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

async function chatWithRetry(messages, retries = 2, waitMs = 30_000) {
  for (let attempt = 0; ; attempt++) {
    try {
      return await client.chat.completions.create({
        model: "gpt-4o",
        messages,
      });
    } catch (err) {
      // 502 / 503 等 5xx：請求沒有打進服務，不計費，可放心重試
      if (err.status < 500 || attempt >= retries) throw err;
      await sleep(waitMs); // 容器重啟一般 1 分鐘內完成，等 30 秒再試
    }
  }
}

const resp = await chatWithRetry([{ role: "user", content: "你好" }]);
console.log(resp.choices[0].message.content);

# curl 的 --retry 會自動對 502/503/504 等瞬時錯誤重試
curl https://api.apiyi.com/v1/chat/completions \
  --retry 2 --retry-delay 30 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [{"role": "user", "content": "你好"}]
  }'