Type[BaseModel], Type[BaseModel]
] = WeakKeyDictionary()


def is_body_allowed_for_status_code(status_code: Union[int, str, None]) -> bool:
    if status_code is None:
        return True
    # Ref: https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#patterned-fields-1
    if status_code in {
        "default",
        "1XX",
        "2XX",
        "3XX",
        "4XX",
        "5XX",
    }:

稍后，对于您的产品级别的应用程序，您可能会要使用像**PostgreSQL**这样的数据库服务器。

!!! tip
    这儿有一个**FastAPI**和**PostgreSQL**的官方项目生成器，全部基于**Docker**，包括前端和更多工具：<a href="https://github.com/tiangolo/full-stack-fastapi-postgresql" class="external-link" target="_blank">https://github.com/tiangolo/full-stack-fastapi-postgresql</a>

!!! note
    请注意，大部分代码是`SQLAlchemy`的标准代码，您可以用于任何框架。FastAPI特定的代码和往常一样少。

## ORMs（对象关系映射）

<p align="center">
    FastAPI keretrendszer, nagy teljesítmény, könnyen tanulható, gyorsan kódolható, productionre kész
</p>
<p align="center">
<a href="https://github.com/tiangolo/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster" target="_blank">
    <img src="https://github.com/tiangolo/fastapi/workflows/Test/badge.svg?event=push&branch=master" alt="Test">
</a>

    "pydantic>=1.7.4,!=1.8,!=1.8.1,!=2.0.0,!=2.0.1,!=2.1.0,<3.0.0",
    "typing-extensions>=4.8.0",
]

[project.urls]
Homepage = "https://github.com/tiangolo/fastapi"
Documentation = "https://fastapi.tiangolo.com/"
Repository = "https://github.com/tiangolo/fastapi"

[project.optional-dependencies]

standard = [
    "fastapi-cli >=0.0.2",
    # For the test client
    "httpx >=0.23.0",

</p>
<p align="center">
<a href="https://github.com/tiangolo/fastapi/actions?query=workflow%3ATest" target="_blank">
    <img src="https://github.com/tiangolo/fastapi/workflows/Test/badge.svg" alt="Test">
</a>
<a href="https://codecov.io/gh/tiangolo/fastapi" target="_blank">
    <img src="https://img.shields.io/codecov/c/github/tiangolo/fastapi?color=%2334D058" alt="Coverage">
</a>

{% endfor %}
{% endif %}

## 项目

GitHub 上最新的 `fastapi` 主题项目：

<div class="github-topic-projects">

# 📨 📁

👆 💪 🔬 📁 📂 👩‍💻 ⚙️ `File`.

!!! info
    📨 📂 📁, 🥇 ❎ <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

    🤶 Ⓜ. `pip install python-multipart`.

    👉 ↩️ 📂 📁 📨 "📨 💽".

## 🗄 `File`

🗄 `File` &amp; `UploadFile` ⚪️➡️ `fastapi`:

```Python hl_lines="1"
{!../../../docs_src/request_files/tutorial001.py!}
```

## 🔬 `File` 🔢

    Notice that the path parameter is declared to be an integer.

## Standards-based benefits, alternative documentation

And because the generated schema is from the <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md" class="external-link" target="_blank">OpenAPI</a> standard, there are many compatible tools.

<img src="/img/tutorial/body/image05.png">

!!! tip "팁"
    만약 <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>를 편집기로 사용한다면, <a href="https://github.com/koxudaxi/pydantic-pycharm-plugin/" class="external-link" target="_blank">Pydantic PyCharm Plugin</a>을 사용할 수 있습니다.

    다음 사항을 포함해 Pydantic 모델에 대한 편집기 지원을 향상시킵니다:

    * 자동 완성
    * 타입 확인
    * 리팩토링
    * 검색

    Обратите внимание, что параметр пути объявлен целочисленным.

## Преимущества стандартизации, альтернативная документация

Поскольку сгенерированная схема соответствует стандарту <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md" class="external-link" target="_blank">OpenAPI</a>, её можно использовать со множеством совместимых инструментов.