👆 💪 📣 `example` Pydantic 🏷 ⚙️ `Config` &amp; `schema_extra`, 🔬 <a href="https://docs.pydantic.dev/latest/concepts/json_schema/#customizing-json-schema" class="external-link" target="_blank">Pydantic 🩺: 🔗 🛃</a>:

=== "🐍 3️⃣.6️⃣ &amp; 🔛"

    ```Python hl_lines="15-23"
    {!> ../../../docs_src/schema_extra_example/tutorial001.py!}
    ```

=== "🐍 3️⃣.1️⃣0️⃣ &amp; 🔛"

    ```Python hl_lines="13-21"

```Python hl_lines="30-31" title="app/routers/items.py"
{!../../../docs_src/bigger_applications/app/routers/items.py!}
```

!!! tip
    👉 🏁 ➡ 🛠️ 🔜 ✔️ 🌀 🔖: `["items", "custom"]`.

     & ⚫️ 🔜 ✔️ 👯‍♂️ 📨 🧾, 1️⃣ `404` & 1️⃣ `403`.

## 👑 `FastAPI`

🔜, ➡️ 👀 🕹 `app/main.py`.

📥 🌐❔ 👆 🗄 & ⚙️ 🎓 `FastAPI`.

* ⚒ 💭 👆 ✔️ 👍 🔬 Pydantic 🏷 👆 📨 💪 & 📨.
* 🔗 🙆 ✔ ✔ & 🔑 ⚙️ 🔗.
* 🙅 🏪 🔢 🔐, 🕴 🔐#️⃣.
* 🛠️ & ⚙️ 👍-💭 🔐 🧰, 💖 🇸🇲 & 🥙 🤝, ♒️.
* 🚮 🌅 🧽 ✔ 🎛 ⏮️ Oauth2️⃣ ↔ 🌐❔ 💪.
* ...♒️.

👐, 👆 5️⃣📆 ✔️ 📶 🎯 ⚙️ 💼 🌐❔ 👆 🤙 💪 ❎ 🛠️ 🩺 🌐 (✅ 🏭) ⚖️ ⚓️ 🔛 📳 ⚪️➡️ 🌐 🔢.

## 🎲 🗄 ⚪️➡️ ⚒ & 🇨🇻 {

👆 💪 💪 ⚙️ 🎏 Pydantic ⚒ 🔗 👆 🏗 🗄 & 🩺 ⚜.

🖼:

```Python hl_lines="6  11"

=== "🐍 3️⃣.6️⃣ & 🔛"

    ```Python hl_lines="30-35"
    {!> ../../../docs_src/body_updates/tutorial001.py!}
    ```

=== "🐍 3️⃣.9️⃣ & 🔛"

    ```Python hl_lines="30-35"
    {!> ../../../docs_src/body_updates/tutorial001_py39.py!}
    ```

=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"

    ```Python hl_lines="28-33"

    ✋️ `open()` 🚫 ⚙️ `async` & `await`.

    , 👥 📣 🎉 🐕‍🦺 🔢 ⏮️ 🐩 `def` ↩️ `async def`.

!!! info
    👆 💪 ✍ 🌅 🔃 👫 🎉 🐕‍🦺 <a href="https://www.starlette.io/events/" class="external-link" target="_blank">💃 🎉' 🩺</a>.

### `startup` &amp; `shutdown` 👯‍♂️

📤 ↕ 🤞 👈 ⚛ 👆 *🕴* &amp; *🤫* 🔗, 👆 💪 💚 ▶️ 🕳 &amp; ⤴️ 🏁 ⚫️, 📎 ℹ &amp; ⤴️ 🚀 ⚫️, ♒️.

👆 💪 ⚙️ `jsonable_encoder` 👈.

⚫️ 📨 🎚, 💖 Pydantic 🏷, & 📨 🎻 🔗 ⏬:

=== "🐍 3️⃣.6️⃣ & 🔛"

    ```Python hl_lines="5  22"
    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

=== "🐍 3️⃣.1️⃣0️⃣ & 🔛"

    ```Python hl_lines="4  21"
    {!> ../../../docs_src/encoder/tutorial001_py310.py!}
    ```

👉 🖼, ⚫️ 🔜 🗜 Pydantic 🏷 `dict`, & `datetime` `str`.

# 🔁 🗄 (🔗) 💽

👆 💪 ⚙️ <a href="https://github.com/encode/databases" class="external-link" target="_blank">`encode/databases`</a> ⏮️ **FastAPI** 🔗 💽 ⚙️ `async` &amp; `await`.

⚫️ 🔗 ⏮️:

* ✳
* ✳
* 🗄

👉 🖼, 👥 🔜 ⚙️ **🗄**, ↩️ ⚫️ ⚙️ 👁 📁 &amp; 🐍 ✔️ 🛠️ 🐕‍🦺. , 👆 💪 📁 👉 🖼 &amp; 🏃 ⚫️.

⏪, 👆 🏭 🈸, 👆 💪 💚 ⚙️ 💽 💽 💖 **✳**.

!!! tip

🍭 & Webarg 🚚 🔬, ✍ & 🛠️ 🔌-🔌.

✋️ 🧾 ❌. ⤴️ APISpec ✍.

⚫️ 🔌-📚 🛠️ (& 📤 🔌-💃 💁‍♂️).

🌌 ⚫️ 👷 👈 👆 ✍ 🔑 🔗 ⚙️ 📁 📁 🔘 #️⃣ 🔠 🔢 🚚 🛣.

& ⚫️ 🏗 🗄 🔗.

👈 ❔ ⚫️ 👷 🏺, 💃, 🆘, ♒️.

✋️ ⤴️, 👥 ✔️ 🔄 ⚠ ✔️ ◾-❕, 🔘 🐍 🎻 (🦏 📁).

👨‍🎨 💪 🚫 ℹ 🌅 ⏮️ 👈. & 🚥 👥 🔀 🔢 ⚖️ 🍭 🔗 & 💭 🔀 👈 📁#️⃣, 🏗 🔗 🔜 ❌.

!!! info

## ✍ 📄

⤴️ 👆 💪 ✍ 📄 `templates/item.html` ⏮️:

```jinja hl_lines="7"
{!../../../docs_src/templates/templates/item.html!}
```

⚫️ 🔜 🎦 `id` ✊ ⚪️➡️ "🔑" `dict` 👆 🚶‍♀️:

```Python
{"request": request, "id": id}
```

## 📄 & 🎻 📁

& 👆 💪 ⚙️ `url_for()` 🔘 📄, & ⚙️ ⚫️, 🖼, ⏮️ `StaticFiles` 👆 📌.

    🚥 👆 ✔️ Pydantic 🏷 👆 💯 & 👆 💚 📨 🚮 💽 🈸 ⏮️ 🔬, 👆 💪 ⚙️ `jsonable_encoder` 🔬 [🎻 🔗 🔢](encoder.md){.internal-link target=_blank}.

## 🏃 ⚫️

⏮️ 👈, 👆 💪 ❎ `pytest`:

<div class="termy">

```console
$ pip install pytest

---> 100%
```

</div>

⚫️ 🔜 🔍 📁 &amp; 💯 🔁, 🛠️ 👫, &amp; 📄 🏁 🔙 👆.

🏃 💯 ⏮️:

<div class="termy">