> ## Documentation Index
> Fetch the complete documentation index at: https://cndoc-langchain.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 华为 OBS 目录集成

> 使用 LangChain Python 与华为 OBS 目录文档加载器集成。

以下代码演示了如何从华为 OBS（对象存储服务）加载对象作为文档。

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
# 安装所需包
# pip install esdk-obs-python
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
from langchain_community.document_loaders import OBSDirectoryLoader
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
endpoint = "your-endpoint"
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
# 配置您的访问凭证
config = {"ak": "your-access-key", "sk": "your-secret-key"}
loader = OBSDirectoryLoader("your-bucket-name", endpoint=endpoint, config=config)
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader.load()
```

## 指定加载前缀

如果您想从存储桶加载具有特定前缀的对象，可以使用以下代码：

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader = OBSDirectoryLoader(
    "your-bucket-name", endpoint=endpoint, config=config, prefix="test_prefix"
)
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader.load()
```

## 从 ECS 获取认证信息

如果您的 LangChain 部署在华为云 ECS 上，并且[已设置委托](https://support.huaweicloud.com/intl/en-us/usermanual-ecs/ecs_03_0166.html#section7)，加载器可以直接从 ECS 获取安全令牌，而无需访问密钥和秘密密钥。

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
config = {"get_token_from_ecs": True}
loader = OBSDirectoryLoader("your-bucket-name", endpoint=endpoint, config=config)
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader.load()
```

## 使用公共存储桶

如果您的存储桶策略允许匿名访问（匿名用户具有 `listBucket` 和 `GetObject` 权限），您可以直接加载对象，而无需配置 `config` 参数。

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader = OBSDirectoryLoader("your-bucket-name", endpoint=endpoint)
```

```python theme={"theme":{"light":"catppuccin-latte","dark":"catppuccin-mocha"}}
loader.load()
```

***

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  <Callout icon="terminal-2">
    [将这些文档连接](/use-these-docs)到 Claude、VSCode 等，通过 MCP 获取实时答案。
  </Callout>

  <Callout icon="edit">
    [在 GitHub 上编辑此页面](https://github.com/langchain-ai/docs/edit/main/src/oss/python/integrations/document_loaders/huawei_obs_directory.mdx) 或 [提交问题](https://github.com/langchain-ai/docs/issues/new/choose)。
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