<div class="termy">

```console
$ pip install "fastapi[all]"

---> 100%
```

</div>

...dó cũng bao gồm `uvicorn`, bạn có thể sử dụng như một server để chạy code của bạn.

/// note

Bạn cũng có thể cài đặt nó từng phần.

Đây là những gì bạn có thể sẽ làm một lần duy nhất bạn muốn triển khai ứng dụng của bạn lên production:

```
pip install fastapi
```

Таким образом, вы получите чистую ошибку с кодом состояния HTTP `418` и содержимым JSON:

```JSON
{"message": "Oops! yolo did something. There goes a rainbow..."}
```

/// note | Технические детали

Также можно использовать `from starlette.requests import Request` и `from starlette.responses import JSONResponse`.

    void testInheritedProperties() {
        // Test that inherited properties are accessible

        // Test dataCount property - using public method
        response.setDataCount(100);
        // Note: getDataCount() is protected, so we can't test it directly

        // Test subCommand property
        assertEquals(SmbComTransaction.TRANS2_SET_FILE_INFORMATION, response.getSubCommand());

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[9] *}

/// note | Technische Details

`Cookie` ist eine Schwesterklasse von `Path` und `Query`. Sie erbt von derselben gemeinsamen `Param`-Elternklasse.

Dans les sections suivantes, vous verrez des options, configurations et fonctionnalités supplémentaires.

/// note | Remarque

Les sections de ce chapitre ne sont **pas nécessairement "avancées"**.

Et il est possible que pour votre cas d'utilisation, la solution se trouve dans l'un d'entre eux.

///

 * ```
 *
 * If any other extension or parameter is specified, then [unknownValues] will be true. Such
 * responses should be refused as their web socket extensions will not be understood.
 *
 * Note that [java.util.zip.Deflater] is hardcoded to use 15 bits (32 KiB) for
 * `client_max_window_bits` and [java.util.zip.Inflater] is hardcoded to use 15 bits (32 KiB) for

This means that you can send only the data that you want to update, leaving the rest intact.

/// note

`PATCH` is less commonly used and known than `PUT`.

And many teams use only `PUT`, even for partial updates.

You are **free** to use them however you want, **FastAPI** doesn't impose any restrictions.

Vous pouvez également déclarer des paramètres body comme étant optionnels, en leur assignant une valeur par défaut à `None` :

{* ../../docs_src/body_multiple_params/tutorial001_an_py310.py hl[18:20] *}

/// note

Notez que, dans ce cas, le paramètre `item` provenant du `Body` est optionnel (sa valeur par défaut est `None`).

///

## Paramètres multiples du body

 *
 * @author Kevin Bourrillion
 * @author Nishant Thakkar
 * @author Sven Mawson
 * @since 1.0
 */
@GwtCompatible
public final class Futures extends GwtFuturesCatchingSpecialization {

  // A note on memory visibility.
  // Many of the utilities in this class (transform, withFallback, withTimeout, asList, combine)
  // have two requirements that significantly complicate their design.

/**
 * Contains constant definitions for the six standard {@link Charset} instances, which are
 * guaranteed to be supported by all Java platform implementations.
 *
 * <p>Assuming you're free to choose, note that <b>{@link #UTF_8} is widely preferred</b>.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/StringsExplained#charsets">{@code Charsets}</a>.
 *
 * @author Mike Bostock