# 杂项

## 获取消息平台实例

> v3.4.34 后

```python
from astrbot.api.event import filter, AstrMessageEvent

@filter.command("test")
async def test_(self, event: AstrMessageEvent):
    from astrbot.core.platform.sources.aiocqhttp.aiocqhttp_platform_adapter import AiocqhttpAdapter # 其他平台同理
    # >= v4.0.0 使用：
    platform_id = event.get_platform_id()
    platform = self.context.get_platform_inst(platform_id)
    # < v4.0.0 使用（已废弃）：
    # platform = self.context.get_platform(filter.PlatformAdapterType.AIOCQHTTP)
    assert isinstance(platform, AiocqhttpAdapter)
    # platform.get_client().api.call_action()
```

## 调用 QQ 协议端 API

```py
@filter.command("helloworld")
async def helloworld(self, event: AstrMessageEvent):
    if event.get_platform_name() == "aiocqhttp":
        # qq
        from astrbot.core.platform.sources.aiocqhttp.aiocqhttp_message_event import AiocqhttpMessageEvent
        assert isinstance(event, AiocqhttpMessageEvent)
        client = event.bot # 得到 client
        payloads = {
            "message_id": event.message_obj.message_id,
        }
        ret = await client.api.call_action('delete_msg', **payloads) # 调用 协议端  API
        logger.info(f"delete_msg: {ret}")
```

关于 CQHTTP API，请参考如下文档：

Napcat API 文档：<https://napcat.apifox.cn/>

Lagrange API 文档：<https://lagrange-onebot.apifox.cn/>

## 获取载入的所有插件

```py
plugins = self.context.get_all_stars() # 返回 StarMetadata 包含了插件类实例、配置等等
```

## 获取加载的所有平台

```py
from astrbot.api.platform import Platform
platforms = self.context.platform_manager.get_insts() # List[Platform]
```
