public void testBase32Offset() {
    testEncodesWithOffset(base32(), "foobar", 0, 6, "MZXW6YTBOI======");
    testEncodesWithOffset(base32(), "foobar", 1, 5, "N5XWEYLS");
    testEncodesWithOffset(base32(), "foobar", 2, 3, "N5RGC===");
    testEncodesWithOffset(base32(), "foobar", 3, 1, "MI======");
    testEncodesWithOffset(base32(), "foobar", 4, 0, "");
  }

  public void testBase32Hex() {

  public void testBase32Offset() {
    testEncodesWithOffset(base32(), "foobar", 0, 6, "MZXW6YTBOI======");
    testEncodesWithOffset(base32(), "foobar", 1, 5, "N5XWEYLS");
    testEncodesWithOffset(base32(), "foobar", 2, 3, "N5RGC===");
    testEncodesWithOffset(base32(), "foobar", 3, 1, "MI======");
    testEncodesWithOffset(base32(), "foobar", 4, 0, "");
  }

  public void testBase32Hex() {

        }
        return difference(multiset1, multiset2);
      }
    };
  }

  private static final ImmutableMultiset<String> ELEMENTS_TO_FILTER_OUT =
      ImmutableMultiset.of("foobar", "bazfoo", "foobar", "foobar");

  private static final Predicate<String> PREDICATE = not(Predicates.in(ELEMENTS_TO_FILTER_OUT));

  private static TestStringMultisetGenerator filteredGenerator() {

        }
        return difference(multiset1, multiset2);
      }
    };
  }

  private static final ImmutableMultiset<String> ELEMENTS_TO_FILTER_OUT =
      ImmutableMultiset.of("foobar", "bazfoo", "foobar", "foobar");

  private static final Predicate<String> PREDICATE = not(Predicates.in(ELEMENTS_TO_FILTER_OUT));

  private static TestStringMultisetGenerator filteredGenerator() {

* 🕸 🏪 👈 🤝 🍕 👱.
* 👩‍💻 🖊 🕸 🚶 ➕1️⃣ 📄 🕸 🕸 📱.
* 🕸 💪 ☕ 🌅 💽 ⚪️➡️ 🛠️.
    * ✋️ ⚫️ 💪 🤝 👈 🎯 🔗.
    * , 🔓 ⏮️ 👆 🛠️, ⚫️ 📨 🎚 `Authorization` ⏮️ 💲 `Bearer ` ➕ 🤝.
    * 🚥 🤝 🔌 `foobar`, 🎚 `Authorization` 🎚 🔜: `Bearer foobar`.

## **FastAPI**'Ⓜ `OAuth2PasswordBearer`

**FastAPI** 🚚 📚 🧰, 🎏 🎚 ⚛, 🛠️ 👫 💂‍♂ ⚒.

👉 🖼 👥 🔜 ⚙️ **Oauth2️⃣**, ⏮️ **🔐** 💧, ⚙️ **📨** 🤝. 👥 👈 ⚙️ `OAuth2PasswordBearer` 🎓.

		* Mas precisa de autenticação para aquele endpoint em específico.
		* Então, para autenticar com nossa API, ele manda um header de `Autorização` com o valor `Bearer` mais o token.
		* Se o token contém `foobar`, o conteúdo do header de `Autorização` será: `Bearer foobar`.

## **FastAPI**'s `OAuth2PasswordBearer`

**FastAPI** fornece várias ferramentas, em diferentes níveis de abstração, para implementar esses recursos de segurança.

    * Поэтому для аутентификации в нашем API он посылает заголовок `Authorization` со значением `Bearer` плюс сам токен.
    * Если токен содержит `foobar`, то содержание заголовка `Authorization` будет таким: `Bearer foobar`.

## Класс `OAuth2PasswordBearer` в **FastAPI**

**FastAPI** предоставляет несколько средств на разных уровнях абстракции для реализации этих функций безопасности.

    * So, to authenticate with our API, it sends a header `Authorization` with a value of `Bearer ` plus the token.
    * If the token contains `foobar`, the content of the `Authorization` header would be: `Bearer foobar`.

## **FastAPI**'s `OAuth2PasswordBearer`

**FastAPI** provides several tools, at different levels of abstraction, to implement these security features.

    * 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`

**FastAPI** bietet mehrere Tools auf unterschiedlichen Abstraktionsebenen zur Implementierung dieser Sicherheitsfunktionen.

- 前端临时将令牌存储在某个位置
- 用户点击前端，前往前端应用的其它部件
- 前端需要从 API 中提取更多数据：
    - 为指定的端点（Endpoint）进行身份验证
    - 因此，用 API 验证身份时，要发送值为 `Bearer` + 令牌的请求头 `Authorization`
    - 假如令牌为 `foobar`，`Authorization` 请求头就是： `Bearer foobar`

## **FastAPI** 的 `OAuth2PasswordBearer`

**FastAPI** 提供了不同抽象级别的安全工具。

本例使用 **OAuth2** 的 **Password** 流以及 **Bearer** 令牌（`Token`）。为此要使用 `OAuth2PasswordBearer` 类。

/// info | "说明"