Wir bauen auf dem vorherigen Kapitel auf.

## Über JWT { #about-jwt }

JWT bedeutet „JSON Web Tokens“.

Es ist ein Standard, um ein JSON-Objekt in einem langen, kompakten String ohne Leerzeichen zu kodieren. Das sieht so aus:

```

   * Information Exchange Syntax Standard</a>, PKCS #12 defines an archive file format for storing
   * many cryptography objects as a single file.
   *
   * @since 15.0
   */
  public static final MediaType KEY_ARCHIVE = createConstant(APPLICATION_TYPE, "pkcs12");

  /**
   * This is a non-standard media type, but is commonly used in serving hosted binary files as it is

          <description>
            Type of toolchain:&lt;ul>
            &lt;li>{@code jdk} for &lt;a
            href="https://maven.apache.org/plugins/maven-toolchains-plugin/toolchains/jdk.html">JDK Standard Toolchain&lt;/a>,&lt;/li>
            &lt;li>other value for &lt;a
            href="https://maven.apache.org/plugins/maven-toolchains-plugin/toolchains/custom.html">Custom Toolchain&lt;/a>&lt;/li>
            &lt;/ul>

      // e.g. a certificate pinning error.
      return false
    }
    // An example of one we might want to retry with a different route is a problem connecting to a
    // proxy and would manifest as a standard IOException. Unless it is one we know we should not
    // retry, we return true and try a new route.
    return true
  }

  /**

     * name and actual arguments used to find it.
     */
    private final Map<String, Object> methodCache = new Hashtable<>();

    private MethodMap methodMap = new MethodMap();

    /**
     * Standard constructor
     * @param clazz The class.
     */
    ClassMap(Class<?> clazz) {
        this.clazz = clazz;
        populateMethodCache();
    }

    /**

Пакет <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a> автоматически устанавливается вместе с **FastAPI**, если вы запускаете команду `pip install "fastapi[standard]"`.

Однако, если вы используете команду `pip install fastapi`, пакет `python-multipart` по умолчанию не включается.

- MinIO does erasure coding at the object level not at the volume level, unlike other object storage vendors. This allows applications to choose different storage class by setting `x-amz-storage-class=STANDARD/REDUCED_REDUNDANCY` for each object uploads so effectively utilizing the capacity of the cluster. Additionally these can also be enforced using IAM policies to make sure the client uploads with correct HTTP headers.

controlled by the [`x509usefallbackroots` setting](/pkg/crypto/x509/#SetFallbackRoots).

Go 1.20 removed the preinstalled `.a` files for the standard library
from the Go distribution.
Installations now build and cache the standard library like
packages in other modules.
The [`installgoroot` setting](/cmd/go#hdr-Compile_and_install_packages_and_dependencies)

    case $link in             #(
      /*)   app_path=$link ;; #(
      *)    app_path=$APP_HOME$link ;;
    esac
done

# This is normally unused
# shellcheck disable=SC2034
APP_BASE_NAME=${0##*/}
# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit

# Use the maximum available, or set MAX_FD != -1 to use that value.

{* ../../docs_src/body/tutorial001.py hl[4] *}

## Créez votre modèle de données

Déclarez ensuite votre modèle de données en tant que classe qui hérite de `BaseModel`.

Utilisez les types Python standard pour tous les attributs :

{* ../../docs_src/body/tutorial001.py hl[7:11] *}