* Wenn Sie FastAPI vergleichen, vergleichen Sie es mit einem Webanwendung-Framework (oder einer Reihe von Tools), welche Datenvalidierung, Serialisierung und Dokumentation bereitstellen, wie Flask-apispec, NestJS, Molten, usw. – Frameworks mit integrierter automatischer Datenvalidierung, Serialisierung und Dokumentation....

    * FastAPI должно сравнивать с фреймворками веб-приложений (или наборами инструментов), которые обеспечивают валидацию и сериализацию данных, а также предоставляют автоматическую документацию, такими как Flask-apispec, NestJS, Molten и им подобные....

    * Si estás comparando FastAPI, compáralo con un framework de aplicaciones web (o conjunto de herramientas) que proporciona validación, serialización y documentación de datos, como Flask-apispec, NestJS, Molten, etc. Frameworks con validación, serialización y documentación automáticas integradas....

    * If you are comparing FastAPI, compare it against a web application framework (or set of tools) that provides data validation, serialization and documentation, like Flask-apispec, NestJS, Molten, etc. Frameworks with integrated automatic data validation, serialization and documentation....

---

FastAPI è un web framework moderno e veloce (a prestazioni elevate) che serve a creare API con Python 3.6+ basato sulle annotazioni di tipo di Python.

Le sue caratteristiche principali sono:

* **Velocità**: Prestazioni molto elevate, alla pari di **NodeJS** e **Go** (grazie a Starlette e Pydantic). [Uno dei framework Python più veloci in circolazione](#performance).

    Although in FastAPI it's optional, and is used mainly to set headers, cookies, and alternative status codes.

### <a href="https://moltenframework.com/" class="external-link" target="_blank">Molten</a>

I discovered Molten in the first stages of building **FastAPI**. And it has quite similar ideas:

* Based on Python type hints.
* Validation and documentation from these types.
* Dependency Injection system.

        return data
    ```

    Note that for OAuth2 the scope `items:read` is a single scope in an opaque string.
    You could have custom internal logic to separate it by colon caracters (`:`) or
    similar, and get the two parts `items` and `read`. Many applications do that to
    group and organize permissions, you could do it as well in your application, just

    * Si on compare FastAPI, il faut le comparer à d'autres frameworks web (ou ensemble d'outils) qui fournissent la validation des données, la sérialisation et la documentation, comme Flask-apispec, NestJS, Molten, etc....

#### List

For example, let's define a variable to be a `list` of `str`.

=== "Python 3.9+"

    Declare the variable, with the same colon (`:`) syntax.

    As the type, put `list`.

    As the list is a type that contains some internal types, you put them in square brackets:

    ```Python hl_lines="1"

    **FastAPI**では任意ですが、ヘッダーやCookieやステータスコードを設定するために利用されています。

### <a href="https://moltenframework.com/" class="external-link" target="_blank">Molten</a>

**FastAPI**を構築する最初の段階でMoltenを発見しました。そして、それは非常に似たようなアイデアを持っています。

* Pythonの型ヒントに基づいている
* これらの型から行われるバリデーションとドキュメント化
* 依存性注入の仕組み