$ pip install jinja2

---> 100%
```

</div>

## Usando `Jinja2Templates` { #using-jinja2templates }

* Importe `Jinja2Templates`.
* Crie um objeto `templates` que você possa reutilizar posteriormente.
* Declare um parâmetro `Request` no *path operation* que retornará um template.

## Utiliser `BackgroundTasks` { #using-backgroundtasks }

Pour commencer, importez `BackgroundTasks` et définissez un paramètre dans votre *fonction de chemin d'accès* avec `BackgroundTasks` comme type déclaré.

{* ../../docs_src/background_tasks/tutorial001_py310.py hl[1,13] *}

**FastAPI** créera l'objet de type `BackgroundTasks` pour vous et le passera comme paramètre.

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning | 注意

`Field`は他の全てのもの（`Query`、`Path`、`Body`など）とは違い、`fastapi`からではなく、`pydantic`から直接インポートされていることに注意してください。

///

## モデルの属性の宣言 { #declare-model-attributes }

以下のように`Field`をモデルの属性として使用することができます:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[11:14] *}

`Field`は`Query`や`Path`、`Body`と同じように動作し、全く同様のパラメータなどを持ちます。

/// note | 技術詳細

import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tester of subtyping relationships between two types.
 *
 * <p>Tests should inherit from this class, and declare subtyping relationship with public methods
 * annotated by {@link TestSubtype}.
 *
 * <p>These declaration methods rely on Java static type checking to make sure what we want to

In this case, the list would have to include `http://localhost:8080` for the `:8080`-frontend to work correctly.

## Wildcards { #wildcards }

It's also possible to declare the list as `"*"` (a "wildcard") to say that all are allowed.

# Using Dataclasses { #using-dataclasses }

FastAPI is built on top of **Pydantic**, and I have been showing you how to use Pydantic models to declare requests and responses.

But FastAPI also supports using [`dataclasses`](https://docs.python.org/3/library/dataclasses.html) the same way:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

헤더 매개변수를 `Query`, `Path` 그리고 `Cookie` 매개변수들과 같은 방식으로 정의할 수 있습니다.

## `Header` 임포트 { #import-header }

먼저 `Header`를 임포트합니다:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## `Header` 매개변수 선언 { #declare-header-parameters }

`Path`, `Query` 그리고 `Cookie`를 사용한 동일한 구조를 이용하여 헤더 매개변수를 선언합니다.

첫 번째 값은 기본값이며, 추가 검증이나 어노테이션 매개변수 모두 전달할 수 있습니다:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[9] *}

 *   }
 * }
 * </pre>
 * Will copy the entire core Rest API specifications (assuming the project has tests) and any of the the X-pack specs starting with enrich*.
 * It is recommended (but not required) to also explicitly declare which core specs your project depends on to help optimize the caching
 * behavior.
 * <i>For example:</i>
 * <pre>
 * restResources {
 *   restApi {
 *     includeCore 'index', 'cat'
 *     includeXpack 'enrich'

* `instagram_basic` est utilisé par Facebook / Instagram.
* `https://www.googleapis.com/auth/drive` est utilisé par Google.

/// info

En OAuth2, un « scope » est simplement une chaîne qui déclare une permission spécifique requise.

Peu importe s'il contient d'autres caractères comme `:` ou si c'est une URL.

Ces détails dépendent de l'implémentation.

Pour OAuth2, ce ne sont que des chaînes.

///

      Exception.
      -->
    <module name="RegexpSinglelineJava">
      <property name="format" value="serialVersionUID" />
      <property name="message" value="Do not declare serialVersionUID." />
      <property name="ignoreComments" value="true" />
    </module>
    <module name="RegexpSinglelineJava">
      <property name="format" value="java\.io\.Serializable;" />