/// check | Periksa

Penyunting kode anda bisa membantu periksa di dalam fungsi seperti pemeriksaan kesalahan, kelengkapan kode, dll.

///

## <abbr title="juga disebut: serialization, parsing, marshalling">Konversi</abbr> data

Jika contoh berikut dijalankan dan diakses browser melalui <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a>, anda akan melihat respon:

```JSON

* <abbr title="juga disebut: serialization, parsing, marshalling">Konversi</abbr> input data: berasal dari jaringan ke data dan tipe Python. Membaca dari:
    * JSON.
    * Parameter path.
    * Parameter query.
    * Cookie.
    * Header.
    * Form.
    * File.
* <abbr title="juga disebut: serialization, parsing, marshalling">Konversi</abbr> output data: konversi data Python ke tipe jaringan data (seperti JSON):

* Para corrigir um bug/questão.
* Para adicionar um novo recurso.

## Entre no chat

Entre no 👥 <a href="https://discord.gg/VQjSZaeJmf" class="external-link" target="_blank">server de conversa do Discord</a> 👥 e conheça novas pessoas da comunidade
do FastAPI.

/// tip | Dica

Enquanto você espera, você vai com seu _crush_ e pega uma mesa, senta e conversa com seu _crush_ por um bom tempo (já que seus hambúrgueres são muito saborosos, e leva um tempo para serem preparados).

Já que você está sentado na mesa com seu _crush_, esperando os hambúrgueres, você pode passar esse tempo admirando o quão lindo, maravilhoso e esperto é seu _crush_ ✨😍✨.

* <abbr title="ook bekend als: serialisatie, parsing, marshalling">Conversie</abbr> van invoergegevens: afkomstig van het netwerk naar Python-data en -types. Zoals:
    * JSON.
    * Pad parameters.
    * Query parameters.
    * Cookies.
    * Headers.
    * Formulieren.
    * Bestanden.

    .build();
```

Client Authentication
---------------------

The above scenario is representative of most TLS set ups: the client uses certificates to validate
the identity of a server. The converse is also possible. Here we create a server that authenticates
a client and a client that authenticates a server.

```java
// Create the root for client and server to trust. We could also use different roots for each!

constraints.TypeLong.message = {item} doit être un nombre.
constraints.TypeFloat.message = {item} doit être un nombre.
constraints.TypeDouble.message = {item} doit être un nombre.
constraints.TypeAny.message = {item} ne peut pas être converti en {propertyType}.
constraints.UriType.message = {item} a un URI non reconnu.
constraints.CronExpression.message = {item} n'est pas une expression CRON valide.

# ----------------------------------------------------------

        return Optional.ofNullable(location);
    }

    /**
     * Returns the path type associated to the given {@code javax.tool} location.
     * This method is the converse of {@link #location()}.
     *
     * @param location identification of a path in the {@code javax.tool} API
     * @return Java path type associated to the given location
     */

     * int.
     */
    checkNonNegative("a", a);
    checkNonNegative("b", b);
    if (a == 0) {
      // 0 % b == 0, so b divides a, but the converse doesn't hold.
      // BigInteger.gcd is consistent with this decision.
      return b;
    } else if (b == 0) {
      return a; // similar logic
    }
    /*