하지만 실제 애플리케이션에서는 보안을 위해, 사용자가 실제로 가질 수 있는 스코프만(또는 미리 정의한 것만) 추가하도록 반드시 확인해야 합니다.

///

{* ../../docs_src/security/tutorial005_an_py310.py hl[157] *}

## *경로 처리*와 의존성에서 스코프 선언하기 { #declare-scopes-in-path-operations-and-dependencies }

이제 `/users/me/items/`에 대한 *경로 처리*가 스코프 `items`를 요구한다고 선언합니다.

이를 위해 `fastapi`에서 `Security`를 import하여 사용합니다.

Em seguida, ele converterá e validará os dados. Assim, quando você usar esse objeto `settings`, terá dados dos tipos que declarou (por exemplo, `items_per_user` será um `int`).

### Usar o `settings` { #use-the-settings }

Depois você pode usar o novo objeto `settings` na sua aplicação:

{* ../../docs_src/settings/tutorial001_py310.py hl[18:20] *}

（FastAPI を使わない場合でも）Python の型の使い方を 2 分で復習したい場合は、短いチュートリアル [Python の型](python-types.md) を参照してください。

型を使った標準的な Python を記述します:

```Python
from datetime import date

from pydantic import BaseModel

# Declare a variable as a str
# and get editor support inside the function
def main(user_id: str):
    return user_id


# A Pydantic model
class User(BaseModel):
    id: int
    name: str
    joined: date
```

{* ../../docs_src/query_params_str_validations/tutorial013_an_py310.py hl[9] *}

/// note | 注意

注意，在這種情況下，FastAPI 不會檢查清單的內容。

例如，`list[int]` 會檢查（並文件化）清單內容為整數；但單獨使用 `list` 則不會。

///

## 宣告更多中繼資料 { #declare-more-metadata }

你可以為參數加入更多資訊。

這些資訊會被包含在產生的 OpenAPI 中，供文件 UI 與外部工具使用。

/// note | 注意

請留意，不同工具對 OpenAPI 的支援程度可能不同。

有些工具可能暫時還不會顯示所有額外資訊；不過多半這些缺漏功能已在開發規劃中。

///

					f.Preamble += commentText(cg) + "\n"
					f.Preamble += "#line 1 \"cgo-generated-wrapper\"\n"
				}
			}

		case *ast.FuncDecl:
			// Also, reject attempts to declare methods on C.T or *C.T.
			// (The generated code would otherwise accept this
			// invalid input; see issue #57926.)
			if decl.Recv != nil && len(decl.Recv.List) > 0 {
				recvType := decl.Recv.List[0].Type

///

### Installer des packages directement { #install-packages-directly }

Si vous êtes pressé et ne souhaitez pas utiliser un fichier pour déclarer les dépendances de votre projet, vous pouvez les installer directement.

/// tip | Astuce

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Evoluindo o Exemplo { #example-upgrade }

Agora modifique o arquivo `main.py` para receber um corpo de uma requisição `PUT`.

Declare o corpo utilizando tipos padrão Python, graças ao Pydantic.

```Python hl_lines="2  7-10 23-25"
from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):

        ? EMPTY
        : new ImmutableDoubleArray(array, start + startIndex, start + endIndex);
  }

  @IgnoreJRERequirement // used only from APIs that use streams
  /*
   * We declare this as package-private, rather than private, to avoid generating a synthetic
   * accessor method (under -target 8) that would lack the Android flavor's @IgnoreJRERequirement.
   */
  Spliterator.OfDouble spliterator() {

    return startIndex == endIndex
        ? EMPTY
        : new ImmutableIntArray(array, start + startIndex, start + endIndex);
  }

  @IgnoreJRERequirement // used only from APIs that use streams
  /*
   * We declare this as package-private, rather than private, to avoid generating a synthetic
   * accessor method (under -target 8) that would lack the Android flavor's @IgnoreJRERequirement.
   */
  Spliterator.OfInt spliterator() {

    * This is useful while calling external services, performing costly computation, etc.
    * This also means that if a dependency was declared as a *path operation decorator* dependency, possibly at the router level (with `.include_router()`) and then it is declared again in a specific *path operation*, the dependency will be called only once.