> For the complete documentation index, see [llms.txt](https://developers-apps-in-toss.toss.im/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-apps-in-toss.toss.im/documentation/api-and-sdk-zh/sdk/domains-api.md).

# Domains API

函数式(flat) API **领域.动作** 是以这种形式组合的公开接口。函数式 API 可以原样使用，领域接口会按领域单位把同一实现组合后额外提供。

文档结构完全遵循这个目录结构——领域目录中的 REFERENCE.md 是概览， `领域/成员/REFERENCE.md`是成员详情。

### 领域列表

| 领域                                                                              | 说明                     |
| ------------------------------------------------------------------------------- | ---------------------- |
| [Ads](/documentation/api-and-sdk-zh/sdk/domains-api/ads.md)                     | 插屏·AdMob·横幅广告          |
| [Analytics](/documentation/api-and-sdk-zh/sdk/domains-api/analytics.md)         | 分析日志·屏幕日志记录            |
| [Clipboard](/documentation/api-and-sdk-zh/sdk/domains-api/clipboard.md)         | 剪贴板读写                  |
| [Device](/documentation/api-and-sdk-zh/sdk/domains-api/device.md)               | 设备·权限·位置·媒体            |
| [Environment](/documentation/api-and-sdk-zh/sdk/domains-api/environment.md)     | 运行环境·版本·网络             |
| [File](/documentation/api-and-sdk-zh/sdk/domains-api/file.md)                   | 文件保存·PDF 查看器           |
| [Game](/documentation/api-and-sdk-zh/sdk/domains-api/game.md)                   | 游戏中心排行榜·个人资料           |
| [IAP](/documentation/api-and-sdk-zh/sdk/domains-api/iap.md)                     | 应用内支付                  |
| [Migration](/documentation/api-and-sdk-zh/sdk/domains-api/migration.md)         | Web origin 存储迁移        |
| [NavigationBar](/documentation/api-and-sdk-zh/sdk/domains-api/navigationbar.md) | 导航栏按钮·外观               |
| [Notification](/documentation/api-and-sdk-zh/sdk/domains-api/notification.md)   | 通知同意                   |
| [Permissions](/documentation/api-and-sdk-zh/sdk/domains-api/permissions.md)     | 设备权限查询·请求              |
| [Promotion](/documentation/api-and-sdk-zh/sdk/domains-api/promotion.md)         | 促销奖励·邀请好友              |
| [Review](/documentation/api-and-sdk-zh/sdk/domains-api/review.md)               | 请求应用内评价                |
| [SafeArea](/documentation/api-and-sdk-zh/sdk/domains-api/safearea.md)           | 查询·订阅 Safe Area insets |
| [Screen](/documentation/api-and-sdk-zh/sdk/domains-api/screen.md)               | 屏幕控制                   |
| [Share](/documentation/api-and-sdk-zh/sdk/domains-api/share.md)                 | 分享链接·分享表单              |
| [Storage](/documentation/api-and-sdk-zh/sdk/domains-api/storage.md)             | 本地存储                   |
| [TossAuth](/documentation/api-and-sdk-zh/sdk/domains-api/tossauth.md)           | Toss 登录·签名             |
| [TossPay](/documentation/api-and-sdk-zh/sdk/domains-api/tosspay.md)             | TossPay 支付认证           |
| [User](/documentation/api-and-sdk-zh/sdk/domains-api/user.md)                   | 用户键·同意数据·年龄            |

### 与函数式 API 的关系

```js
// 函数式(flat) API — 与 v2 相同
import { getAnonymousKey } from "@apps-in-toss/web-framework";
await getAnonymousKey();

// 领域接口 — 将同一实现按领域.动作
import { User } from "@apps-in-toss/web-framework";
await User.getAnonymousKey();
```

在不受支持的 Toss 应用版本中调用领域成员时 `undefined`不会返回 `UNSUPPORTED_APP_VERSION` 错误 **throw**会抛出（函数式 API 会保持既有（v2）行为不变）。该成员可 `isSupported()`可提前通过 isSupported() 确认。


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