For that, you use `app.add_middleware()` (as in the example for CORS).

```Python
from fastapi import FastAPI
from unicorn import UnicornMiddleware

app = FastAPI()

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

그리고 **FastAPI** 애플리케이션도 여러 파일이나 모듈 등으로 구성될 수 있습니다.

### **FastAPI** app 파일

[Bigger Applications](bigger-applications.md){.internal-link target=_blank} 에 묘사된 파일 구조를 가지고 있는 것으로 가정해봅시다.

```
.
├── app
│   ├── __init__.py
│   └── main.py
```

`main.py` 파일 안에 **FastAPI** app 을 만들었습니다:

{* ../../docs_src/app_testing/main.py *}

### 테스트 파일

## Contoh

### Buat app

* Buat file `main.py` dengan:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.StemmerOverridePager;
import org.codelibs.fess.app.service.StemmerOverrideService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.admin.dict.stemmeroverride.UploadForm;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.dict.kuromoji;

import org.codelibs.fess.app.web.CrudMode;
import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

CMD ["fastapi", "run", "app/main.py", "--port", "80"]

# Si estás detrás de un proxy como Nginx o Traefik añade --proxy-headers
# CMD ["fastapi", "run", "app/main.py", "--port", "80", "--proxy-headers"]
```

</details>

## Qué es un Contenedor

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.CharMappingPager;
import org.codelibs.fess.app.service.CharMappingService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.admin.dict.mapping.UploadForm;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.dict.mapping.CharMappingFile;

 */
package org.codelibs.fess.app.web.api.admin.documents;

import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.web.admin.searchlist.AdminSearchlistAction;
import org.codelibs.fess.app.web.api.ApiResult;

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.GroupPager;
import org.codelibs.fess.app.service.GroupService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.user.exentity.Group;
import org.codelibs.fess.opensearch.user.exentity.User;
import org.lastaflute.web.Execute;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.api.admin;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.web.api.FessApiAction;
import org.codelibs.fess.exception.InvalidAccessTokenException;

/**
 * Abstract base class for admin API actions in Fess.