# HTTP 重试技能

> 网络请求失败（超时、连接重置、限流）导致服务不稳定

- Skill: `modbender/http-2` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add modbender/http-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/modbender/http-2/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: modbender (https://skillmd.com/u/modbender)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/modbender/http-2

---


# HTTP 重试技能

**触发词**: timeouterror, econnreset, econnrefused, 429, retry, http error, 网络超时

## 问题
网络请求失败（超时、连接重置、限流）导致服务不稳定

## 解决方案
指数退避 + 超时控制 + 连接池复用

```javascript
async function fetchWithRetry(url, options = {}, maxRetries = 3) {
  const { retryDelay = 1000, timeout = 30000 } = options;
  
  for (let attempt = 0; attempt <= maxRetries; attempt++) {
    try {
      const controller = new AbortController();
      const timeoutId = setTimeout(() => controller.abort(), timeout);
      const response = await fetch(url, { ...options, signal: controller.signal });
      clearTimeout(timeoutId);
      
      if (response.status === 429 || response.status >= 500) {
        await new Promise(r => setTimeout(r, retryDelay * Math.pow(2, attempt)));
        continue;
      }
      return response;
    } catch (err) {
      if (attempt === maxRetries) throw err;
      await new Promise(r => setTimeout(r, retryDelay * Math.pow(2, attempt)));
    }
  }
}
```