/// info

A "bearer" token is not the only option.

But it's the best one for our use case.

And it might be the best for most use cases, unless you are an OAuth2 expert and know exactly why there's another option that better suits your needs.

In that case, **FastAPI** also provides you with the tools to build it.

///

 *          <br>
 *          <i>NOTE: This will only be used in very special cases, using a highly controlled vocabulary of possible
 *          values. (Elements like this are why it's a good idea to use the descriptor tools.)</i>
 *      </td>
 *   </tr>
 *   <tr>
 *      <td>phase</td>
 *      <td>defaultPhase = LifecyclePhase.&lt;phase&gt;</td>
 *      <td>No</td>

Каждый раз, когда вы передаете точно такое же содержимое (точно такой же пароль), вы получаете точно такую же тарабарщину.

Но преобразовать тарабарщину обратно в пароль невозможно.

##### Зачем использовать хеширование паролей { #why-use-password-hashing }

Если вашу базу данных украдут, у злоумышленника не будет паролей пользователей в открытом виде, только хэши.

They are, more or less, at opposite ends, complementing each other.

Requests has a very simple and intuitive design, it's very easy to use, with sensible defaults. But at the same time, it's very powerful and customizable.

That's why, as said in the official website:

> Requests is one of the most downloaded Python packages of all time

The way you use it is very simple. For example, to do a `GET` request, you would write:

```Python

Jetzt sind Sie bereit, mit Ihrem Projekt zu arbeiten.

/// tip | Tipp

Möchten Sie verstehen, was das alles oben bedeutet?

Lesen Sie weiter. 👇🤓

///

## Warum virtuelle Umgebungen { #why-virtual-environments }

Um mit FastAPI zu arbeiten, müssen Sie <a href="https://www.python.org/" class="external-link" target="_blank">Python</a> installieren.

    checkNotNull(valueComparator);
    return Comparator.<Optional<T>, @Nullable T>comparing(
        o -> orElseNull(o), Comparator.nullsLast(valueComparator));
  }

  // For discussion of why this exists, see the Android flavor.
  private static <T> @Nullable T orElseNull(Optional<T> optional) {
    return optional.orElse(null);
  }

  /**

Sie können jedoch nicht vom Kauderwelsch zurück zum Passwort konvertieren.

##### Warum Passwort-Hashing verwenden? { #why-use-password-hashing }

Wenn Ihre Datenbank gestohlen wird, hat der Dieb nicht die Klartext-Passwörter Ihrer Benutzer, sondern nur die Hashes.

Siempre que pases exactamente el mismo contenido (exactamente el mismo password) obtienes exactamente el mismo galimatías.

Pero no puedes convertir del galimatías al password.

##### Por qué usar hashing de passwords { #why-use-password-hashing }

Si tu base de datos es robada, el ladrón no tendrá los passwords en texto plano de tus usuarios, solo los hashes.

      setException(t);
      return;
    } finally {
      function = null;
    }

    /*
     * If set()/setValue() throws an Error, we let it propagate. Why? The most likely Error is a
     * StackOverflowError (from deep transform(..., directExecutor()) nesting), and calling
     * setException(stackOverflowError) would fail:
     *

Agora você está pronto para começar a trabalhar no seu projeto.



/// tip | Dica

Você quer entender o que é tudo isso acima?

Continue lendo. 👇🤓

///

## Por que ambientes virtuais { #why-virtual-environments }

Para trabalhar com o FastAPI, você precisa instalar o <a href="https://www.python.org/" class="external-link" target="_blank">Python</a>.