> ## Documentation Index
> Fetch the complete documentation index at: https://help.airbridge.io/llms.txt
> Use this file to discover all available pages before exploring further.

# 메타데이터 가져오기 (Measurement Options)

사용할 수 있는 리포트 메저먼트 옵션을 조회합니다. \[[참고](https://docs.google.com/spreadsheets/d/13ThNnryqRmZQwJVecM8lZ2OB7LzA8s3cwLlQBGpbXLg/edit?gid=1539494076#gid=1539494076)]

<Card title="Try API Request" icon="rectangle-api" horizontal href="https://www.postman.com/airbridge-engineering/airbridge-api/request/euwlhud/get-metadata-retention-types-copy" />

```text GET theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
https://api.airbridge.io/dataspec/v1/apps/{app_name}/retention-report/measurement_options
```

<h2 id="메타데이터-가져오기-measurement-options-request">
  Request
</h2>

***

<h3 id="메타데이터-가져오기-measurement-options-headers">
  Headers
</h3>

<ParamField header="Accept-Language" type="string">
  API 요청 및 결과 반환에 사용할 언어를 지정할 수 있습니다. ISO-639-1 포맷을 따릅니다.
</ParamField>

<ParamField header="Content-Type" type="string">
  리소스의 미디어 타입을 나타냅니다. 기본값으로 `application/json`을 사용합니다.
</ParamField>

<ParamField header="Authorization" type="string">
  API 요청에 사용하는 키값입니다. [키값 생성 및 조회 방법](/ko/references/introduction)을 확인하여 획득할 수 있습니다.
</ParamField>

<h3 id="메타데이터-가져오기-measurement-options-path-params">
  Path Params
</h3>

<ParamField path="app_name" type="string" required>
  에어브릿지 앱 이름(App Name)
</ParamField>

<RequestExample>
  ```shellscript Request theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
  curl -X GET 'https://api.airbridge.io/dataspec/v1/apps/{app_name}/retention-report/measurement_options' \
    -H 'Accept-Language: ko' \
    -H 'Content-Type: application/json' \
    -H 'Authorization: Bearer {AIRBRIDGE-API-TOKEN}'
  ```
</RequestExample>

<h2 id="메타데이터-가져오기-measurement-options-response">
  Response
</h2>

***

### 200

### 404

입력한 필드에 오류가 있거나 해당하는 리소스가 없습니다.

<ResponseExample>
  ```json 200 theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
  {
    "data": [
      {
        "key": "general_retention",
        "name": "General",
        "description": "The user retention is measured based on all Start Events that occurred during the set date range. For example, the Return Event that occurred on 3/3 is attributed to both Channel A and B.  <br /><i>launch</i>\n<img src=\"https://static.airbridge.io/images/retention_measurement_tooltip_img/img_general.png\">\n<br /><i>launch</i>\n<a href=\"https://help.airbridge.io/en/guides/retention-report-viewing#general-mode\">Learn More</a>"
      },
      {
        "key": "confined_retention",
        "name": "Confined",
        "description": "The user retention is measured based on the latest Start Event that occurred during the set date range. For example, the Return Event that occurred on 3/3 is attributed to Channel B only. <br /><i>launch</i><img src=\"https://static.airbridge.io/images/retention_measurement_tooltip_img/img_confined.png\">\n<br /><i>launch</i>\n<a href=\"https://help.airbridge.io/en/guides/retention-report-viewing#confined-mode\">Learn More</a>"
      },
      {
        "key": "specific_retention",
        "name": "Specific",
        "description": "The user retention is measured based on the latest Start Event that occurred during the set date range. The Return Event is attributed when it occurs within the attribution window initiated by the Start Event. This option will be available soon. "
      }
    ]
  }
  ```

  ```json 404 theme={"theme":{"light":"github-dark-dimmed","dark":"github-dark-dimmed"}}
  {
    "type": "about:blank",
    "title": "Not Found",
    "status": 404,
    "traceId": "1-000000-000000000000000"
  }
  ```
</ResponseExample>