---
title: 流式调用
sidebarTitle: 流式调用
description: SSE 流式输出接入说明
---

# 流式调用

在请求体中设置 `"stream": true`，服务端以 SSE 形式返回增量内容。

## cURL

```bash
curl https://api.haiyushuke.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-4o-mini","stream":true,"messages":[{"role":"user","content":"写一首四句诗"}]}'
```

## OpenAI SDK（Node）

```ts
const stream = await client.chat.completions.create({
  model: "gpt-4o-mini",
  stream: true,
  messages: [{ role: "user", content: "你好" }],
});

for await (const chunk of stream) {
  const text = chunk.choices[0]?.delta?.content;
  if (text) process.stdout.write(text);
}
```

## 注意

- 客户端需正确处理连接中断与超时重试  
- 流式场景下计费通常按 **输出 token** 累计，以账单规则为准