* **Robusto**: Crea codice pronto per la produzione con documentazione automatica interattiva.
* **Basato sugli standard**: Basato su (e completamente compatibile con) gli open standard per le API: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (precedentemente Swagger) e <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.

!!! note "Détails techniques"
    La spécification OpenAPI appelle ces métadonnées des <a href="https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#operation-object" class="external-link" target="_blank">Objets d'opération</a>.

And you want to have a way for the frontend to authenticate with the backend, using a **username** and **password**.

We can use **OAuth2** to build that with **FastAPI**.

But let's save you the time of reading the full long specification just to find those little pieces of information you need.

Let's use the tools provided by **FastAPI** to handle security.

## How it looks

* **简单**：设计的易于使用和学习，阅读文档的时间更短。
* **简短**：使代码重复最小化。通过不同的参数声明实现丰富功能。bug 更少。
* **健壮**：生产可用级别的代码。还有自动生成的交互式文档。
* **标准化**：基于（并完全兼容）API 的相关开放标准：<a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (以前被称为 Swagger) 和 <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>。

<small>* 根据对某个构建线上应用的内部开发团队所进行的测试估算得出。</small>

## Sponsors

* <a href="https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object" class="external-link" target="_blank">`Parameter Object` (in the specification)</a> that was used by FastAPI's:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

To see what exactly you can include in the responses, you can check these sections in the OpenAPI specification:

* <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#responsesObject" class="external-link" target="_blank">OpenAPI Responses Object</a>, it includes the `Response Object`.

    Beachten Sie, dass der Pfad-Parameter dort als Ganzzahl deklariert ist.

## Nützliche Standards. Alternative Dokumentation

Und weil das generierte Schema vom <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md" class="external-link" target="_blank">OpenAPI</a>-Standard kommt, gibt es viele kompatible Tools.

    * ⚙️ 🇺🇸🔍 👩‍🔬 📛 (🛠️) 🔗, 🎯 & 🏋️ 🌌.
    * ✔️ 🤔 🔢, ✋️ 🏋️ 🛃.


### <a href="https://swagger.io/" class="external-link" target="_blank">🦁</a> / <a href="https://github.com/OAI/OpenAPI-Specification/" class="external-link" target="_blank">🗄</a>

👑 ⚒ 👤 💚 ⚪️➡️ ✳ 🎂 🛠️ 🏧 🛠️ 🧾.

⤴️ 👤 🔎 👈 📤 🐩 📄 🔗, ⚙️ 🎻 (⚖️ 📁, ↔ 🎻) 🤙 🦁.

### The callback path expression

* *路径*可以包含 <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#key-expression" class="external-link" target="_blank">OpenAPI 3 表达式</a>（详见下文），可以使用带参数的变量，以及发送至您的 API 的原始请求的部分

### 回调路径表达式

回调*路径*支持包含发送给您的 API 的原始请求的部分的  <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#key-expression" class="external-link" target="_blank">OpenAPI 3 表达式</a>。