assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}


def test_token():
    response = client.get("/items", headers={"Authorization": "Bearer testtoken"})
    assert response.status_code == 200, response.text
    assert response.json() == {"token": "testtoken"}


def test_openapi_schema():
    response = client.get("/openapi.json")

    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py39
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(
        "/users/me", headers={"Authorization": f"Bearer {access_token}"}
    )
    assert response.status_code == 200, response.text
    assert response.json() == {

    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


@needs_py310
def test_token(client: TestClient):
    access_token = get_access_token(scope="me", client=client)
    response = client.get(
        "/users/me", headers={"Authorization": f"Bearer {access_token}"}
    )
    assert response.status_code == 200, response.text
    assert response.json() == {

    return current_user


client = TestClient(app)


def test_security_oauth2():
    response = client.get("/users/me", headers={"Authorization": "Bearer footokenbar"})
    assert response.status_code == 200, response.text
    assert response.json() == {"username": "Bearer footokenbar"}


def test_security_oauth2_password_other_header():
    response = client.get("/users/me", headers={"Authorization": "Other footokenbar"})

    * Um sich also bei unserer API zu authentifizieren, sendet es einen Header `Authorization` mit dem Wert `Bearer` plus dem Token.
    * Wenn der Token `foobar` enthielte, wäre der Inhalt des `Authorization`-Headers: `Bearer foobar`.

## **FastAPI**s `OAuth2PasswordBearer`

            headers={"WWW-Authenticate": "Bearer"},
        )
    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": user.username}, expires_delta=access_token_expires
    )
    return Token(access_token=access_token, token_type="bearer")


@app.get("/users/me/", response_model=User)

                It is also useful when you want to have authentication that can be
                provided in one of multiple optional ways (for example, in a query
                parameter or in an HTTP Bearer token).
                """
            ),
        ] = True,
    ):
        self.model: APIKey = APIKey(
            **{"in": APIKeyIn.query},  # type: ignore[arg-type]
            name=name,

    * Einem Query-Parameter.
    * Einem Header.
    * Einem Cookie.
* `http`: Standard-HTTP-Authentifizierungssysteme, einschließlich:
    * `bearer`: ein Header `Authorization` mit dem Wert `Bearer` plus einem Token. Dies wird von OAuth2 geerbt.
    * HTTP Basic Authentication.
    * HTTP Digest, usw.
* `oauth2`: Alle OAuth2-Methoden zum Umgang mit Sicherheit (genannt „Flows“).

OpenAPI 有一种定义多个安全「方案」的方法。

通过使用它们，你可以利用所有这些基于标准的工具，包括这些交互式文档系统。

OpenAPI 定义了以下安全方案：

* `apiKey`：一个特定于应用程序的密钥，可以来自：
    * 查询参数。
    * 请求头。
    * cookie。
* `http`：标准的 HTTP 身份认证系统，包括：
    * `bearer`: 一个值为 `Bearer` 加令牌字符串的 `Authorization` 请求头。这是从 OAuth2 继承的。
    * HTTP Basic 认证方式。
    * HTTP Digest，等等。
* `oauth2`：所有的 OAuth2 处理安全性的方式（称为「流程」）。
    *以下几种流程适合构建 OAuth 2.0 身份认证的提供者（例如 Google，Facebook，Twitter，GitHub 等）：

⚙️ 👫, 👆 💪 ✊ 📈 🌐 👫 🐩-⚓️ 🧰, 🔌 👉 🎓 🧾 ⚙️.

🗄 🔬 📄 💂‍♂ ⚖:

* `apiKey`: 🈸 🎯 🔑 👈 💪 👟 ⚪️➡️:
    * 🔢 🔢.
    * 🎚.
    * 🍪.
* `http`: 🐩 🇺🇸🔍 🤝 ⚙️, 🔌:
    * `bearer`: 🎚 `Authorization` ⏮️ 💲 `Bearer ` ➕ 🤝. 👉 😖 ⚪️➡️ Oauth2️⃣.
    * 🇺🇸🔍 🔰 🤝.
    * 🇺🇸🔍 📰, ♒️.
* `oauth2`: 🌐 Oauth2️⃣ 🌌 🍵 💂‍♂ (🤙 "💧").
    * 📚 👫 💧 ☑ 🏗 ✳ 2️⃣.0️⃣ 🤝 🐕‍🦺 (💖 🇺🇸🔍, 👱📔, 👱📔, 📂, ♒️):
        * `implicit`