## Détails techniques { #technical-details }

Juste un détail technique pour les nerds curieux. 🤓

Sous le capot, dans la spécification technique ASGI, cela fait partie du [protocole Lifespan](https://asgi.readthedocs.io/en/latest/specs/lifespan.html), et il y définit des événements appelés `startup` et `shutdown`.

/// info

///

## Benefícios baseados em padrões, documentação alternativa { #standards-based-benefits-alternative-documentation }

E como o schema gerado é do padrão [OpenAPI](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md), existem muitas ferramentas compatíveis.

Як бачите, тепер у назвах методів є мітка, а потім назва функції; вони більше не містять інформації з URL-шляху та HTTP-операції.

### Попередня обробка специфікації OpenAPI для генератора клієнта { #preprocess-the-openapi-specification-for-the-client-generator }

У згенерованому коді все ще є певна **дубльована інформація**.

 *
 * ### Equal URLs should be equal
 *
 * These two URLs are semantically identical, but `java.net.URI` disagrees:
 *
 *  * http://host:80/
 *
 *  * http://host
 *
 * Both the unnecessary port specification (`:80`) and the absent trailing slash (`/`) cause URI to
 * bucket the two URLs separately. This harms URI's usefulness in collections. Any application that

    You may find that you need to use Java 11+ to *build* Guava, but it continues to work under Java 8, and you can run tests to verify that, as we do.
    -->
    <surefire.toolchain.version>${java.specification.version}</surefire.toolchain.version>
    <!-- Override this with -Dtest.include="**/SomeTest.java" on the CLI -->
    <test.include>%regex[.*.class]</test.include>

<h3 id="Language_versions">Language versions</h3>

<p>
The <a href="/doc/go1compat">Go 1 compatibility guarantee</a> ensures that
programs written to the Go 1 specification will continue to compile and run
correctly, unchanged, over the lifetime of that specification.
More generally, as adjustments are made and features added to the language,
the compatibility guarantee ensures that a Go program that works with a

   * <p><b>Warning:</b> when this method is used, the resulting cache will use identity ({@code ==})
   * comparison to determine equality of keys. Its {@link Cache#asMap} view will therefore
   * technically violate the {@link Map} specification (in the same way that {@link IdentityHashMap}
   * does).
   *
   * <p>Entries with keys that have been garbage collected may be counted in {@link Cache#size}, but

 * equals</i>. That is, {@code a.compareTo(b)} or {@code comparator.compare(a, b)} should equal zero
 * <i>if and only if</i> {@code a.equals(b)}. If this advice is not followed, the resulting map will
 * not correctly obey its specification.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/ImmutableCollectionsExplained">immutable collections</a>.
 *
 * @author Jared Levy
 * @author Louis Wasserman

## Fonctionnalités de FastAPI { #fastapi-features }

**FastAPI** vous offre les éléments suivants :

### Basé sur des standards ouverts { #based-on-open-standards }

* シンプルで直感的なAPIを持っている点。
* HTTPメソッド名を直接利用し、単純で直感的である。
* 適切なデフォルト値を持ちつつ、強力なカスタマイズ性を持っている。

///

### [Swagger](https://swagger.io/) / [OpenAPI](https://github.com/OAI/OpenAPI-Specification/) { #swagger-openapi }

私がDjango REST Frameworkに求めていた主な機能は、APIの自動的なドキュメント生成でした。

そして、Swaggerと呼ばれる、 JSON (またはYAML、JSONの拡張版) を使ってAPIをドキュメント化するための標準があることを知りました。