429 Upstream rate limit exceeded, please retry later · Retrying in 8s · attempt ...

🔍 报错分析

1. 🌐 错误翻译

原文：429 Upstream rate limit exceeded, please retry later · Retrying in 8s · attempt 6/10
译文：429 上游请求速率超限，请稍后重试 · 8秒后重试 · 第6/10次尝试

2. 🎯 原因分析

3. 💡 解决方案

// 带指数退避的请求函数
async function requestWithBackoff(apiUrl, maxRetries = 10, initialDelay = 1000) {
  let retryCount = 0;
  while (retryCount < maxRetries) {
    try {
      const response = await fetch(apiUrl);
      if (response.status === 429) {
        const delay = initialDelay * Math.pow(2, retryCount); // 指数退避
        console.log(`请求超限，${delay}ms后重试，当前第${retryCount + 1}次`);
        await new Promise(resolve => setTimeout(resolve, delay));
        retryCount++;
        continue;
      }
      return response;
    } catch (error) {
      if (error.status === 429) {
        retryCount++;
        const delay = initialDelay * Math.pow(2, retryCount);
        await new Promise(resolve => setTimeout(resolve, delay));
        continue;
      }
      throw error;
    }
  }
  throw new Error(`重试次数用尽，请求仍被限流`);
}

4. 🛡️ 预防措施