19AA..19AB    ; valid                                  # 5.2  NEW TAI LUE LETTER HIGH SUA..NEW TAI LUE LETTER LOW SUA
19AC..19AF    ; disallowed                             # NA   <reserved-19AC>..<reserved-19AF>
19B0..19C9    ; valid                                  # 4.1  NEW TAI LUE VOWEL SIGN VOWEL SHORTENER..NEW TAI LUE TONE MARK-2

{!../../docs_src/dependency_testing/tutorial001.py!}
```

/// tip

👆 💪 ⚒ 🔗 🔐 🔗 ⚙️ 🙆 👆 **FastAPI** 🈸.

⏮️ 🔗 💪 ⚙️ *➡ 🛠️ 🔢*, *➡ 🛠️ 👨‍🎨* (🕐❔ 👆 🚫 ⚙️ 📨 💲), `.include_router()` 🤙, ♒️.

FastAPI 🔜 💪 🔐 ⚫️.

///

⤴️ 👆 💪 ⏲ 👆 🔐 (❎ 👫) ⚒ `app.dependency_overrides` 🛁 `dict`:

```Python
app.dependency_overrides = {}
```

/// tip

添加回调前，首先看下常规 API 应用是什么样子。

常规 API 应用包含接收 `Invoice` 请求体的*路径操作*，还有包含回调 URL 的查询参数 `callback_url`。

这部分代码很常规，您对绝大多数代码应该都比较熟悉了：

```Python hl_lines="10-14  37-54"
{!../../docs_src/openapi_callbacks/tutorial001.py!}
```

/// tip | "提示"

`callback_url` 查询参数使用 Pydantic 的 <a href="https://pydantic-docs.helpmanual.io/usage/types/#urls" class="external-link" target="_blank">URL</a> 类型。

///

```

////

//// tab | Python 3.8+

```Python hl_lines="1"
{!> ../../docs_src/request_forms_and_files/tutorial001_an.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.

///

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

////

## Define `File` and `Form` parameters

## 🔃 ⏬

📄 ⚛ 🛠️ 🏛, 🙆 ⏬ 🔛 `1.0.0` 💪 ⚠ 🚮 💔 🔀.

FastAPI ⏩ 🏛 👈 🙆 "🐛" ⏬ 🔀 🐛 🔧 & 🚫-💔 🔀.

/// tip

"🐛" 🏁 🔢, 🖼, `0.2.3`, 🐛 ⏬ `3`.

///

, 👆 🔜 💪 📌 ⏬ 💖:

```txt
fastapi>=0.45.0,<0.46.0
```

💔 🔀 &amp; 🆕 ⚒ 🚮 "🇺🇲" ⏬.

/// tip

"🇺🇲" 🔢 🖕, 🖼, `0.2.3`, 🇺🇲 ⏬ `2`.

///

## ♻ FastAPI ⏬

👆 🔜 🚮 💯 👆 📱.

```

</div>

It will serve the documentation on `http://127.0.0.1:8008`.

That way, you can edit the documentation/source files and see the changes live.

/// tip

Alternatively, you can perform the same steps that scripts does manually.

Go into the language directory, for the main docs in English it's at `docs/en/`:

```console
$ cd docs/en/
```

{!> ../../docs_src/security/tutorial003_py310.py!}
```

////

`OAuth2PasswordRequestForm` 🎓 🔗 👈 📣 📨 💪 ⏮️:

*  `username`.
*  `password`.
* 📦 `scope` 🏑 🦏 🎻, ✍ 🎻 🎏 🚀.
* 📦 `grant_type`.

/// tip

Oauth2️⃣ 🔌 🤙 *🚚* 🏑 `grant_type` ⏮️ 🔧 💲 `password`, ✋️ `OAuth2PasswordRequestForm` 🚫 🛠️ ⚫️.

🚥 👆 💪 🛠️ ⚫️, ⚙️ `OAuth2PasswordRequestFormStrict` ↩️ `OAuth2PasswordRequestForm`.

///

# 🕹

**FastAPI** ⚓️ 🔛 **🔫** 🐩, ⚫️ 📶 ⏩ 🛠️ 🙆 **🕹** 🗃 🔗 ⏮️ 🔫.

👆 💪 🌀 😐 FastAPI *➡ 🛠️* ⏮️ 🕹 🔛 🎏 🈸.

/// tip

**🕹** ❎ 📶 🎯 ⚙️ 💼.

⚫️ ✔️ **📈** & **⚠** 🕐❔ 🔬 ⚠ **🕸 🔗**.

⚒ 💭 👆 🔬 🚥 **💰** 👆 ⚙️ 💼 ⚖ **👐**. 👶

///

## 🕹 🗃

📥 **🕹** 🗃 👈 ✔️ **🔫** 🐕‍🦺. 👆 💪 ⚙️ 👫 ⏮️ **FastAPI**:

* <a href="https://strawberry.rocks/" class="external-link" target="_blank">🍓</a> 👶

esam
esat 
būšu     
būsi
būs
būsim
būsiet
tikt
tiku
tiki
tika
tikām
tikāt
tieku
tiec
tiek
tiekam
tiekat
tikšu
tiks
tiksim
tiksiet
tapt
tapi
tapāt
topat
tapšu
tapsi
taps
tapsim
tapsiet
kļūt
kļuvu
kļuvi
kļuva
kļuvām
kļuvāt
kļūstu
kļūsti
kļūst
kļūstam
kļūstat
kļūšu
kļūsi
kļūs

    }
}
```

/// tip | "Dica"

Perceba o servidor gerado automaticamente com um valor `url` de `/api/v1`, retirado do `root_path`.

///

Na interface de documentação em <a href="http://127.0.0.1:9999/api/v1/docs" class="external-link" target="_blank">http://127.0.0.1:9999/api/v1/docs</a> parecerá:

<img src="/img/tutorial/behind-a-proxy/image03.png">

/// tip | "Dica"