```

////

/// tip

We are using an invented header to simplify this example.

But in real cases you will get better results using the integrated [Security utilities](security/index.md){.internal-link target=_blank}.

///

## Another module with `APIRouter`

::: fastapi.security.APIKeyCookie

::: fastapi.security.APIKeyHeader

::: fastapi.security.APIKeyQuery

## HTTP Authentication Schemes

::: fastapi.security.HTTPBasic

::: fastapi.security.HTTPBearer

::: fastapi.security.HTTPDigest

## HTTP Credentials

::: fastapi.security.HTTPAuthorizationCredentials

::: fastapi.security.HTTPBasicCredentials

## OAuth2 Authentication

	public final fun -deprecated_certificate ()Ljava/security/cert/X509Certificate;
	public final fun -deprecated_keyPair ()Ljava/security/KeyPair;
	public fun <init> (Ljava/security/KeyPair;Ljava/security/cert/X509Certificate;)V
	public final fun certificate ()Ljava/security/cert/X509Certificate;
	public final fun certificatePem ()Ljava/lang/String;

//// tab | Python 3.10+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="4  79"
{!> ../../docs_src/security/tutorial003_an.py!}
```

////

//// tab | Python 3.10+ nicht annotiert

//// tab | Python 3.10+

```Python hl_lines="63-66"
{!> ../../docs_src/security/tutorial005_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="63-66"
{!> ../../docs_src/security/tutorial005_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="64-67"
{!> ../../docs_src/security/tutorial005_an.py!}
```

////

All the security utilities that integrate with OpenAPI (and the automatic API docs) inherit from `SecurityBase`, that's how **FastAPI** can know how to integrate them in OpenAPI.

///

## What it does

      "Resource":    "arn:aws:s3:::%s/*",
      "Condition": {  "StringEquals": {"s3:ExistingObjectTag/security": "public" } }
    },
    {
      "Effect":     "Allow",
      "Action":     "s3:DeleteObjectTagging",
      "Resource":    "arn:aws:s3:::%s/*",
      "Condition": {  "StringEquals": {"s3:ExistingObjectTag/security": "public" } }
    },
    {
      "Effect":     "Allow",
      "Action":     "s3:DeleteObject",

```Python hl_lines="7  48  55-56  59-60  69-75"
{!> ../../docs_src/security/tutorial004_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="7  48  55-56  59-60  69-75"
{!> ../../docs_src/security/tutorial004_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="7  49  56-57  60-61  70-76"
{!> ../../docs_src/security/tutorial004_an.py!}
```

////

        'interceptors.md': 'features/interceptors.md'
        'r8_proguard.md': 'features/r8_proguard.md'
        # Redirect all Security pages to security/*
        'security.md': 'security/security.md'
        'security_providers.md': 'security/security_providers.md'
        'tls_configuration_history.md': 'security/tls_configuration_history.md'
        # Redirect all changelog pages to changelog/*
        'changelog.md': 'changelogs/changelog.md'

///

```Python hl_lines="153"
{!../../docs_src/security/tutorial005.py!}
```

## 在*路径操作*与依赖项中声明作用域

接下来，为*路径操作*  `/users/me/items/` 声明作用域 `items`。

为此，要从 `fastapi` 中导入并使用 `Security` 。

`Security` 声明依赖项的方式和 `Depends` 一样，但 `Security` 还能接收作用域（字符串）列表类型的参数 `scopes`。

此处使用与 `Depends` 相同的方式，把依赖项函数 `get_current_active_user` 传递给 `Security`。

同时，还传递了作用域**列表**，本例中只传递了一个作用域：`items`（此处支持传递更多作用域）。