* Tout cela fonctionnerait également pour les objets <abbr title="JavaScript Object Notation">JSON</abbr> profondément imbriqués.
* Convertir de et vers <abbr title="JavaScript Object Notation">JSON</abbr> automatiquement.
* Documenter tout avec OpenAPI, qui peut être utilisé par :
    * Les systèmes de documentation interactifs.
    * Les systèmes de génération automatique de code client, pour de nombreuses langues.

<%@page pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%-- query matched some document --%>
<div id="subheader" class="row">
	<div class="col">
		<p>
			<c:if test="${allRecordCountRelation=='EQUAL_TO'}">
				<la:message key="labels.search_result_status"
					arg0="${displayQuery}" arg1="${fe:formatNumber(allRecordCount,'###,###')}"
					arg2="${f:h(currentStartRecordNumber)}"
					arg3="${f:h(currentEndRecordNumber)}" />

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Então, vá para a interface `/docs`, você verá que o **FastAPI** está usando esses **modelos** para **documentar** a API, e ele também os usará para **serializar** e **validar** os dados.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Atualizar o App com Múltiplos Modelos

      hextet |= Character.digit(ipString.charAt(i), 16);
    }
    return (short) hextet;
  }

  /**
   * Convert a byte array into an InetAddress.
   *
   * <p>{@link InetAddress#getByAddress} is documented as throwing a checked exception "if IP
   * address is of illegal length." We replace it with an unchecked exception, for use by callers
   * who already know that addr is an array of length 4 or 16.
   *

   * com.google.common.collect.Iterables#filter(Iterable, Class)} in preference.
   *
   * <p><b>Warning:</b> contrary to the typical assumptions about predicates (as documented at
   * {@link Predicate#apply}), the returned predicate may not be <i>consistent with equals</i>. For
   * example, {@code instanceOf(ArrayList.class)} will yield different results for the two equal

   * <i>not</i> needed, it may be faster to copy {@code Iterables.filter(unfiltered, predicate)} and
   * use the copy.
   *
   * <p><b>Warning:</b> {@code predicate} must be <i>consistent with equals</i>, as documented at
   * {@link Predicate#apply}. Do not provide a predicate such as {@code
   * Predicates.instanceOf(ArrayList.class)}, which is inconsistent with equals. (See {@link

    protected RoleQueryHelper roleQueryHelper;

    /** Helper for managing user information and authentication. */
    @Resource
    protected UserInfoHelper userInfoHelper;

    /** Helper for OpenSearch Description Document (OSDD) functionality. */
    @Resource
    protected OsddHelper osddHelper;

    /** Helper for managing popular search words and suggestions. */
    @Resource
    protected PopularWordHelper popularWordHelper;

Bunlara Pydantic üzerine kurulu <abbr title="Object-Relational Mapper">ORM</abbr> databaseler ve , <abbr title="Object-Document Mapper">ODM</abbr> kütüphaneler de dahil olmak üzere.

Bu ayrıca şu anlama da geliyor, bir çok durumda requestten gelen objeyi **direkt olarak database**'e her şeyi otomatik olarak doğrulanmış bir biçimde aktarabilirisin.

Wliczając w to zewnętrzne biblioteki, również oparte o Pydantic, takie jak <abbr title="Mapowanie obiektowo-relacyjne. Po angielsku: Object-Relational Mapper">ORM</abbr>, <abbr title="Object-Document Mapper">ODM</abbr> dla baz danych.

Oznacza to, że w wielu przypadkach możesz przekazać ten sam obiekt, który otrzymasz z żądania **bezpośrednio do bazy danych**, ponieważ wszystko jest walidowane automatycznie.

Inklusive externer Bibliotheken, die auf Pydantic basieren, wie <abbr title="Object-Relational Mapper (Abbildung von Objekten auf relationale Strukturen)">ORM</abbr>s, <abbr title="Object-Document Mapper (Abbildung von Objekten auf nicht-relationale Strukturen)">ODM</abbr>s für Datenbanken.

Daher können Sie in vielen Fällen das Objekt einer Anfrage **direkt zur Datenbank** schicken, weil alles automatisch validiert wird.