> For the complete documentation index, see [llms.txt](https://docs-cn.multimarkets.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-cn.multimarkets.org/client-api/bao-jia-jie-kou/cha-xun-jie-kou/k-xian-he-bing-xin-tiao.md).

# K线合并-心跳

## 接口说明

该接口需要走/quote\_kline\_merge，才能调用 要求请求者每10秒发送一次，在30秒内如果没有收到心跳请求，就会认为超时，断开请求者的websocket连接

## 请求-协议号：20000

### 数据格式:json

### 数据结构

#### data定义

### 请求示例

```json
{
    "cmd_id":20000,
    "seq_id":123,
    "ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
    "data":{
    }
}
```

## 应答-协议号：20001

### 数据格式:json

### 数据结构

#### data定义

### 应答示例

```json
{
    "ret":200,
    "msg":"ok",
    "cmd_id":20001,
    "seq_id":123,
    "ext":"3baaa938-f92c-4a74-a228-fd49d5e2f8bc-1678419657806",
    "data":{
    }
}
```


---

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