> For the complete documentation index, see [llms.txt](https://docs.convai.com/api-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.convai.com/api-docs/zh/cha-jian-yu-ji-cheng/web-plugins/convai-web-sdk/vanilla-typescript/events-and-message-handling.md).

# 事件与消息处理

## 事件

### 状态变化

```ts
client.on('stateChange', (state) => {
  console.log(state.agentState, state.isConnected);
});
```

### 新消息

```ts
client.on('message', (message) => {
  console.log('消息：', message.type, message.content);
});
```

### 消息已更新

```ts
client.on('messagesChange', (messages) => {
  console.log('消息总数：', messages.length);
});
```

### 实时转写

```ts
client.on('userTranscriptionChange', (text) => {
  console.log('你说了：', text);
});
```

### 生命周期事件

```ts
client.on('connect', () => console.log('已连接'));
client.on('disconnect', () => console.log('已断开连接'));
client.on('botReady', () => console.log('机器人已就绪'));
```

### 错误

```ts
client.on('error', (err) => {
  console.error('Convai 错误：', err);
});
```

***

## 消息类型

Convai 消息包括：

* `user-transcription`
* `bot-llm-text`
* `bot-emotion`
* `action`
* `behavior-tree`

只有部分会在 UI 中显示（通常是转写内容 + 机器人文本）。

***

## 移除监听器

```ts
const unsub = client.on('message', handler);
unsub(); // 移除监听器
```


---

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