}, errorHook);
        }
    }

    /**
     * Encodes permission strings into an array.
     *
     * @param permissionsText the permissions text (newline-separated)
     * @return encoded permission array
     */
    protected static String[] encodePermissions(final String permissionsText) {

      super(message);
    }
  }

  /** Encodes the specified byte array, and returns the encoded {@code String}. */
  public String encode(byte[] bytes) {
    return encode(bytes, 0, bytes.length);
  }

  /**
   * Encodes the specified range of the specified byte array, and returns the encoded {@code
   * String}.
   */
  public final String encode(byte[] bytes, int off, int len) {

    Convert any object to something that can be encoded in JSON.

    This is used internally by FastAPI to make sure anything you return can be
    encoded as JSON before it is sent to the client.

    You can also use it yourself, for example to convert objects before saving them
    in a database that supports only JSON.

    Read more about it in the
    [FastAPI docs for JSON Compatible Encoder](https://fastapi.tiangolo.com/tutorial/encoder/).

                }
            }
        }
        return hash;
    }

    /**
     * Encodes a similar document hash using GZIP compression and Base64 encoding.
     * This reduces storage space for hash values while maintaining uniqueness.
     *
     * @param hash the hash string to encode
     * @return the encoded hash string with prefix, or the original hash if encoding fails
     */

        }
    }

    /**
     * Encodes the specified value using the character encoding.
     *
     * @param value the value to encode
     * @return the encoded value
     * @throws CurlException if the encoding is unsupported
     */
    protected String encode(final String value) {
        try {
            return URLEncoder.encode(value, encoding);

    }
    assertWithMessage("Hex string and dec parm").that(Ints.tryParse("FFFF", 10)).isNull();
    assertWithMessage("Mixed hex case").that(Ints.tryParse("ffFF", 16)).isEqualTo(65535);
  }

  /**
   * Encodes an integer as a string with given radix, then uses {@link Ints#tryParse(String, int)}
   * to parse the result. Asserts the result is the same as what we started with.
   */

        final File targetDir = new File(userDir, "target");
        return new File(targetDir, "logs").getAbsolutePath();
    }

    /**
     * Encodes a URL path for filtering.
     *
     * @param path The path to encode.
     * @return The encoded path.
     */
    public String encodeUrlFilter(final String path) {
        if (filterPathEncoding == null || path == null) {
            return path;
        }

## Base64 vs fichiers { #base64-vs-files }

Envisagez d'abord d'utiliser [Fichiers de requête](../tutorial/request-files.md) pour téléverser des données binaires et [Réponse personnalisée - FileResponse](./custom-response.md#fileresponse--fileresponse-) pour envoyer des données binaires, plutôt que de les encoder dans du JSON.

    Cancellation(boolean wasInterrupted, @Nullable Throwable cause) {
      this.wasInterrupted = wasInterrupted;
      this.cause = cause;
    }
  }

  /** A special value that encodes the 'setFuture' state. */
  private static final class DelegatingToFuture<V extends @Nullable Object> implements Runnable {
    final AbstractFuture<V> owner;
    final ListenableFuture<? extends V> future;

# JSON Compatible Encoder { #json-compatible-encoder }

There are some cases where you might need to convert a data type (like a Pydantic model) to something compatible with JSON (like a `dict`, `list`, etc).

For example, if you need to store it in a database.

For that, **FastAPI** provides a `jsonable_encoder()` function.

## Using the `jsonable_encoder` { #using-the-jsonable-encoder }