To do this, use `yield` instead of `return`, and write the extra steps (code) after.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

Any function that is valid to use with:

      <span style="background-color:#007166"><font color="#D3D7CF"> tip </font></span>  Running in development mode, for production use:
             <b>fastapi run</b>

             Logs:

모든 *경로 처리*를 추가한 뒤에 수행해야 합니다.

{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py310.py hl[2, 12:21, 24] *}

/// tip | 팁

`app.openapi()`를 수동으로 호출한다면, 그 전에 `operationId`들을 업데이트해야 합니다.

///

/// warning | 경고

이렇게 할 경우, 각 *경로 처리 함수*의 이름이 고유하도록 보장해야 합니다.

서로 다른 모듈(파이썬 파일)에 있어도 마찬가지입니다.

///

│   ├── main.py
│   ├── dependencies.py
│   └── routers
│   │   ├── __init__.py
│   │   ├── items.py
│   │   └── users.py
│   └── internal
│       ├── __init__.py
│       └── admin.py
```

/// tip

There are several `__init__.py` files: one in each directory or subdirectory.

This is what allows importing code from one file into another.

For example, in `app/main.py` you could have a line like:

```

    "paths": {
            // 여기에 다른 내용이 더 있습니다
    }
}
```

/// tip | 팁

`root_path`에서 가져온 값인 `/api/v1`의 `url` 값을 가진, 자동 생성된 server에 주목하세요.

///

[http://127.0.0.1:9999/api/v1/docs](http://127.0.0.1:9999/api/v1/docs)의 docs UI에서는 다음처럼 보입니다:

<img src="/img/tutorial/behind-a-proxy/image03.png">

/// tip | 팁

docs UI는 선택한 server와 상호작용합니다.

///

/// note | 기술 세부사항

# GraphQL { #graphql }

由于 **FastAPI** 基于 **ASGI** 标准，因此很容易集成任何也兼容 ASGI 的 **GraphQL** 库。

你可以在同一个应用中将常规的 FastAPI 路径操作与 GraphQL 结合使用。

/// tip | 提示

**GraphQL** 解决一些非常特定的用例。

与常见的 **Web API** 相比，它有各自的**优点**和**缺点**。

请确保评估在你的用例中，这些**好处**是否足以弥补这些**缺点**。 🤓

///

## GraphQL 库 { #graphql-libraries }

以下是一些支持 **ASGI** 的 **GraphQL** 库。你可以将它们与 **FastAPI** 一起使用：

* [Strawberry](https://strawberry.rocks/) 🍓

# GraphQL { #graphql }

由於 FastAPI 基於 ASGI 標準，整合任何與 ASGI 相容的 GraphQL 函式庫都很容易。

你可以在同一個應用程式中同時使用一般的 FastAPI 路徑操作 (path operation) 與 GraphQL。

/// tip

GraphQL 解決某些非常特定的使用情境。

與一般的 Web API 相比，它有優點也有缺點。

請確認在你的使用情境中，這些效益是否足以彌補其限制。 🤓

///

## GraphQL 函式庫 { #graphql-libraries }

下面是支援 ASGI 的部分 GraphQL 函式庫，你可以與 FastAPI 一起使用：

* [Strawberry](https://strawberry.rocks/) 🍓

You should do it after adding all your *path operations*.

{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py310.py hl[2, 12:21, 24] *}

/// tip

If you manually call `app.openapi()`, you should update the `operationId`s before that.

///

/// warning

If you do this, you have to make sure each one of your *path operation functions* has a unique name.

It is not very popular or used nowadays.

OAuth2 doesn't specify how to encrypt the communication, it expects you to have your application served with HTTPS.

/// tip

In the section about **deployment** you will see how to set up HTTPS for free, using Traefik and Let's Encrypt.

///

## OpenID Connect { #openid-connect }

/// tip

In the next chapter, you will see a real secure implementation, with password hashing and <abbr title="JSON Web Tokens">JWT</abbr> tokens.

But for now, let's focus on the specific details we need.

///

{* ../../docs_src/security/tutorial003_an_py310.py hl[87] *}

/// tip