想免费体验GPT-4？自己部署它！ https://ai-pro.org/

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Cloudflare Work 代码
该代码可用于在 Cloudflare Workers 上部署一个简单的 API，转发请求至 `https://multillm.ai-pro.org/api/openai-completion` 并返回响应。
## 代码
```javascript
addEventListener("fetch", event => {
  event.respondWith(handleRequest(event.request))
})
async function handleRequest(request) {
  if (request.method === "POST" && new URL(request.url).pathname === "/v1/chat/completions") {
    const url = 'https://multillm.ai-pro.org/api/openai-completion';
    const headers = new Headers(request.headers);
    headers.set('Content-Type', 'application/json');
    const requestBody = await request.json();
    const stream = requestBody.stream;
    const newRequest = new Request(url, {
      method: 'POST',
      headers: headers,
      body: JSON.stringify(requestBody)
    });
    try {
      const response = await fetch(newRequest);
      if (stream) {
        const { readable, writable } = new TransformStream();
        response.body.pipeTo(writable);
        return new Response(readable, {
          headers: response.headers
        });
      } else {
        return new Response(response.body, {
          status: response.status,
          headers: response.headers
        });
      }
    } catch (e) {
      return new Response(JSON.stringify({ error: 'Unable to reach the backend API' }), { status: 502 });
    }
  } else {
    return new Response('Not found', { status: 404 });
  }
}
```
## 使用示例
```bash
curl --location 'https://ai-pro-free.aivvm.com/v1/chat/completions' \
--header 'Content-Type: application/json' \
--data '{
    "model": "gpt-4-turbo",
    "messages": [
    {
      "role": "user", "content": "鲁迅为什么打周树人"
    }],
    "stream": true
  }'
```
## 来源
[https://ai-pro.org](https://ai-pro.org)