!!! check
    Notice that you don't have to create a special class and pass it somewhere to **FastAPI** to "register" it or anything similar.

    You just pass it to `Depends` and **FastAPI** knows how to do the rest.

## Share `Annotated` dependencies

In the examples above, you see that there's a tiny bit of **code duplication**.

  - author: Jean-Baptiste Rocher
    author_link: https://hashnode.com/@jibrocher
    link: https://dev.indooroutdoor.io/series/fastapi-react-poll-app
    title: Building the Poll App From Django Tutorial With FastAPI And React
  - author: Silvan Melchior
    author_link: https://github.com/silvanmelchior
    link: https://blog.devgenius.io/seamless-fastapi-configuration-with-confz-90949c14ea12

通过使用预制的容器镜像，可以非常轻松地**组合**并使用不同的工具。 例如，尝试一个新的数据库。 在大多数情况下，你可以使用**官方镜像**，只需为其配置环境变量即可。

这样，在许多情况下，你可以了解容器和 Docker，并通过许多不同的工具和组件重复使用这些知识。

因此，你可以运行带有不同内容的**多个容器**，例如数据库、Python 应用程序、带有 React 前端应用程序的 Web 服务器，并通过内部网络将它们连接在一起。

所有容器管理系统（如 Docker 或 Kubernetes）都集成了这些网络功能。

## 容器和进程

**容器镜像**通常在其元数据中包含启动**容器**时应运行的默认程序或命令以及要传递给该程序的参数。 与在命令行中的情况非常相似。

当 **容器** 启动时，它将运行该命令/程序（尽管你可以覆盖它并使其运行不同的命令/程序）。

    ---

    Die `APIRouter` sind nicht „gemountet“, sie sind nicht vom Rest der Anwendung isoliert.

    Das liegt daran, dass wir deren *Pfadoperationen* in das OpenAPI-Schema und die Benutzeroberflächen einbinden möchten.

    Da wir sie nicht einfach isolieren und unabhängig vom Rest „mounten“ können, werden die *Pfadoperationen* „geklont“ (neu erstellt) und nicht direkt einbezogen.

So, in our case, if we set the Peewee state variable (with a default `dict`) in the `async` dependency, all the rest of the internal code in our app will see this value and will be able to reuse it for the whole request.

* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">AlternativeToで **FastAPI** に投票</a>
* <a href="https://github.com/marmelab/awesome-rest/pull/93" class="external-link" target="_blank">awesome-restで **FastAPI** に投票</a>

## GitHub issuesで他の人を助ける

* **Alembic** migration.
* **CORS** (Cross Origin Resource Sharing).
* **Celery** worker'ları ile backend içerisinden seçilen işleri çalıştırabilirsiniz.

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="http://www.hug.rest/" target="_blank">Hug</a>'ın Yaratıcısı</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

"_Eğer REST API geliştirmek için **modern bir framework** öğrenme arayışında isen, **FastAPI**'a bir göz at [...] Hızlı, kullanımı ve öğrenmesi kolay. [...]_"

<div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://www.hug.rest/" target="_blank">Hug</a> creator</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

But then the attackers try with username `stanleyjobsox` and password `love123`.

And your application code does something like: