Using the information above, you can use the same utility function to generate the OpenAPI schema and override each part that you need.

For example, let's add <a href="https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo" class="external-link" target="_blank">ReDoc's OpenAPI extension to include a custom logo</a>.

### Normal **FastAPI**

First, write all your **FastAPI** application as normally:

    assert "window.opener.swaggerUIRedirectOauth2" in response.text


def test_redoc_html(client: TestClient):
    response = client.get("/redoc")
    assert response.status_code == 200, response.text
    assert "https://unpkg.com/redoc@next/bundles/redoc.standalone.js" in response.text


def test_api(client: TestClient):
    response = client.get("/users/john")
    assert response.status_code == 200, response.text

### 대안 API 문서

그리고 이제 <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>로 가봅시다.

다른 자동 문서를 볼 수 있습니다(<a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a> 제공):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## 예제 심화

이제 `PUT` 요청에 있는 본문(Body)을 받기 위해 `main.py`를 수정해봅시다.

### 可选的 API 文档

前往 <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>。

你将会看到可选的自动生成文档 （由 <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a> 提供)：

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

### OpenAPI

**FastAPI** 使用定义 API 的 **OpenAPI** 标准将你的所有 API 转换成「模式」。

* `description`: 📛 👆 🛠️.
* `routes`: 📇 🛣, 👫 🔠 ® *➡ 🛠️*. 👫 ✊ ⚪️➡️ `app.routes`.

## 🔑 🔢

⚙️ ℹ 🔛, 👆 💪 ⚙️ 🎏 🚙 🔢 🏗 🗄 🔗 & 🔐 🔠 🍕 👈 👆 💪.

🖼, ➡️ 🚮 <a href="https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo" class="external-link" target="_blank">📄 🗄 ↔ 🔌 🛃 🔱</a>.

### 😐 **FastAPI**

🥇, ✍ 🌐 👆 **FastAPI** 🈸 🛎:

```Python hl_lines="1  4  7-9"

### Alternative API docs

And now, go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.

You will see the alternative automatic documentation (provided by <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Example upgrade

Тепер перейдемо сюди <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.

Ви побачите альтернативну автоматичну документацію (створену завдяки <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

### OpenAPI

### Ìdàkejì àkọsílẹ̀ API

Ní báyìí, lọ sí <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.

Wà á rí àwọn àkọsílẹ̀ aládàáṣiṣẹ́ mìíràn (tí a pese nipasẹ <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Àpẹẹrẹ ìgbésókè mìíràn

### مستندات API جایگزین

حال به آدرس  <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a> بروید.

مستندات خودکار دیگری را مشاهده خواهید کرد که به کمک <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a> ایجاد می‌شود:

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## تغییر مثال

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Une autre documentation d'API est fournie par <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank"><strong>ReDoc</strong></a>.

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Faite en python moderne