> 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/sdk/domains-api/device/device.opencamera.md).

# Device.openCamera

> 함수형 API `openCamera`로도 같은 기능을 쓸 수 있어요.

### 기능 설명

카메라를 실행해서 촬영한 이미지를 반환해요.

카메라 권한이 없으면 `OpenCameraPermissionError`가 발생해요. `Device.openCamera.getPermission()` / `Device.openCamera.openPermissionDialog()`로 권한을 확인·요청할 수 있어요.

### 타입

```ts
Device.openCamera(options?: OpenCameraOptions): Promise<ImageResponse>;
```

**Params**

```ts
type OpenCameraOptions = {
  /** 이미지를 Base64로 반환할지 여부예요. 기본값은 false예요. */
  base64?: boolean;
  /** 이미지의 최대 너비(px)예요. 기본값은 1024예요. */
  maxWidth?: number;
};
```

**Response**

```ts
type ImageResponse = {
  id: string;
  dataUri: string;
};
```

### 에러

에러는 클래스로 던져져요 — `error instanceof OpenCameraPermissionError`로 식별해요. 클래스는 `@apps-in-toss/web-framework`에서 import할 수 있어요.

| 에러 클래스                      | 설명                                                                          |
| --------------------------- | --------------------------------------------------------------------------- |
| `OpenCameraPermissionError` | 카메라 권한이 거부된 경우예요. `Device.openCamera.openPermissionDialog()`로 다시 요청할 수 있어요. |

### 예시 코드

```js
import { Device, OpenCameraPermissionError } from "@apps-in-toss/web-framework";

const base64 = true;

async function captureAndShow() {
  try {
    const image = await Device.openCamera({ base64, maxWidth: 1024 });

    const img = document.getElementById("preview");
    img.src = base64
      ? "data:image/jpeg;base64," + image.dataUri
      : image.dataUri;
  } catch (error) {
    if (error instanceof OpenCameraPermissionError) {
      console.warn("카메라 권한이 없어요.");
      return;
    }
    console.error(error);
  }
}

document
  .getElementById("open-camera")
  .addEventListener("click", captureAndShow);
```


---

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