///

## 🗄 Pydantic `BaseModel`

🥇, 👆 💪 🗄 `BaseModel` ⚪️➡️ `pydantic`:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="4"
{!> ../../docs_src/body/tutorial001.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="2"
{!> ../../docs_src/body/tutorial001_py310.py!}
```

////

## ✍ 👆 💽 🏷

⤴️ 👆 📣 👆 💽 🏷 🎓 👈 😖 ⚪️➡️ `BaseModel`.

⚙️ 🐩 🐍 🆎 🌐 🔢:

Para isso, primeiro importe `Query` de `fastapi`:

```Python hl_lines="3"
{!../../docs_src/query_params_str_validations/tutorial002.py!}
```

## Use `Query` como o valor padrão

Agora utilize-o como valor padrão do seu parâmetro, definindo o parâmetro `max_length` para 50:

```Python hl_lines="9"
{!../../docs_src/query_params_str_validations/tutorial002.py!}
```

## 🏗 📕 🕸 👩‍💻

➡️ ▶️ ⏮️ 🙅 FastAPI 🈸:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="9-11  14-15  18  19  23"
{!> ../../docs_src/generate_clients/tutorial001.py!}
```

////

//// tab | 🐍 3️⃣.9️⃣ & 🔛

```Python hl_lines="7-9  12-13  16-17  21"
{!> ../../docs_src/generate_clients/tutorial001_py39.py!}
```

////

👀 👈 *➡ 🛠️* 🔬 🏷 👫 ⚙️ 📨 🚀 & 📨 🚀, ⚙️ 🏷 `Item` & `ResponseMessage`.

通常使用している依存関係の*関数*と同じものを使用することができます。

### 依存関係の要件

これらはリクエストの要件（ヘッダのようなもの）やその他のサブ依存関係を宣言することができます:

```Python hl_lines="6 11"
{!../../docs_src/dependencies/tutorial006.py!}
```

### 例外の発生

これらの依存関係は通常の依存関係と同じように、例外を`raise`発生させることができます:

```Python hl_lines="8 13"
{!../../docs_src/dependencies/tutorial006.py!}
```

### 戻り値

そして、値を返すことも返さないこともできますが、値は使われません。

├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

Die Datei `main.py` hätte als Inhalt:

```Python
{!../../docs_src/async_tests/main.py!}
```

Die Datei `test_main.py` hätte die Tests für `main.py`, das könnte jetzt so aussehen:

```Python
{!../../docs_src/async_tests/test_main.py!}
```

## Es ausführen

Sie können Ihre Tests wie gewohnt ausführen mit:

<div class="termy">

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

The file `main.py` would have:

{* ../../docs_src/async_tests/main.py *}

The file `test_main.py` would have the tests for `main.py`, it could look like this now:

{* ../../docs_src/async_tests/test_main.py *}

## Run it

You can run your tests as usual via:

<div class="termy">

```console
$ pytest

from pathlib import Path

from fastapi.testclient import TestClient

from docs_src.custom_response import tutorial008
from docs_src.custom_response.tutorial008 import app

client = TestClient(app)


def test_get(tmp_path: Path):
    file_path: Path = tmp_path / "large-video-file.mp4"
    tutorial008.some_file_path = str(file_path)
    test_content = b"Fake video bytes"
    file_path.write_bytes(test_content)
    response = client.get("/")

        shutil.rmtree("./static")
    if os.path.isdir("./templates"):  # pragma: nocover
        shutil.rmtree("./templates")
    shutil.copytree("./docs_src/templates/templates/", "./templates")
    shutil.copytree("./docs_src/templates/static/", "./static")
    from docs_src.templates.tutorial001 import app

    client = TestClient(app)
    response = client.get("/items/foo")
    assert response.status_code == 200, response.text

➡️ 🥇 🎯 🔛 🔗.

⚫️ 🔢 👈 💪 ✊ 🌐 🎏 🔢 👈 *➡ 🛠️ 🔢* 💪 ✊:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="8-11"
{!> ../../docs_src/dependencies/tutorial001.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="6-7"
{!> ../../docs_src/dependencies/tutorial001_py310.py!}
```

////

👈 ⚫️.

**2️⃣ ⏸**.

& ⚫️ ✔️ 🎏 💠 & 📊 👈 🌐 👆 *➡ 🛠️ 🔢* ✔️.

{!> ../../docs_src/security/tutorial002_py310.py!}
```

////

## 현재 유저 주입하기

이제 *경로 작동*에서 `get_current_user`와 동일한 `Depends`를 사용할 수 있습니다.

//// tab | 파이썬 3.7 이상

```Python hl_lines="31"
{!> ../../docs_src/security/tutorial002.py!}
```

////

//// tab | 파이썬 3.10 이상

```Python hl_lines="29"
{!> ../../docs_src/security/tutorial002_py310.py!}
```

////