proxy-server.js

import express from 'express';
import { createProxyMiddleware } from 'http-proxy-middleware';
import cors from 'cors';

const app = express();
const PORT = 3001;

// 启用CORS
app.use(cors({
  origin: ['http://localhost:8080', 'http://localhost:8081', 'http://localhost:8082', 'http://localhost:8083', 'http://localhost:8084', 'http://localhost:8085', 'http://localhost:8086', 'http://localhost:8087', 'http://localhost:8088', 'http://localhost:8089'],
  credentials: true
}));

// OpenAI API代理
app.use('/api/openai', createProxyMiddleware({
  target: 'https://api.openai.com/v1',
  changeOrigin: true,
  pathRewrite: {
    '^/api/openai': '', // 移除 /api/openai 前缀
  },
  onProxyReq: (proxyReq, req, res) => {
    console.log(`Proxying request: ${req.method} ${req.url}`);
  },
  onError: (err, req, res) => {
    console.error('Proxy error:', err);
    res.status(500).json({ error: 'Proxy error' });
  }
}));

app.listen(PORT, () => {
  console.log(`CORS Proxy server running on http://localhost:${PORT}`);
  console.log(`OpenAI API proxied at http://localhost:${PORT}/api/openai`);
});