{* ../../docs_src/app_testing/tutorial001.py hl[2,12,15:18] *}


/// tip | Порада

Зверніть увагу, що тестові функції — це звичайні `def`, а не `async def`.

Виклики клієнта також звичайні, без використання `await`.

Це дозволяє використовувати `pytest` без зайвих ускладнень.

///

/// note | Технічні деталі

Di kondisi ini, ini adalah sebuah fungsi `async`.

---

Anda bisa mendefinisikan fungsi ini sebagai fungsi normal daripada `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Catatan

Jika anda tidak tahu perbedaannya, kunjungi [Async: *"Panduan cepat"*](../async.md#in-a-hurry){.internal-link target=_blank}.

Neste caso, é uma função `assíncrona`.

---

Você também pode defini-la como uma função normal em vez de `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Nota

Se você não sabe a diferença, verifique o [Async: *"Com pressa?"*](../async.md#com-pressa){.internal-link target=_blank}.

///

{* ../../docs_src/app_testing/tutorial001.py hl[2,12,15:18] *}

/// tip

Notice that the testing functions are normal `def`, not `async def`.

And the calls to the client are also normal calls, not using `await`.

This allows you to use `pytest` directly without complications.

///

/// note | Technical Details

Será llamada por **FastAPI** cuando reciba un request en la URL "`/`" usando una operación `GET`.

En este caso, es una función `async`.

---

También podrías definirla como una función normal en lugar de `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Nota

Si no sabes la diferencia, revisa la sección [Async: *"¿Tienes prisa?"*](../async.md#in-a-hurry){.internal-link target=_blank}.

///

t-line:before{content:"\f201"}.fa-chart-pie:before{content:"\f200"}.fa-check:before{content:"\f00c"}.fa-check-circle:before{content:"\f058"}.fa-check-double:before{content:"\f560"}.fa-check-square:before{content:"\f14a"}.fa-cheese:before{content:"\f7ef"}.fa-chess:before{content:"\f439"}.fa-chess-bishop:before{content:"\f43a"}.fa-chess-board:before{content:"\f43c"}.fa-chess-king:before{content:"\f43f"}.fa-chess-knight:before{content:"\f441"}.fa-chess-pawn:before{content:"\f443"}.fa-chess-queen:be...

{* ../../docs_src/first_steps/tutorial001.py hl[7] *}

👉 🐍 🔢.

⚫️ 🔜 🤙 **FastAPI** 🕐❔ ⚫️ 📨 📨 📛 "`/`" ⚙️ `GET` 🛠️.

👉 💼, ⚫️ `async` 🔢.

---

👆 💪 🔬 ⚫️ 😐 🔢 ↩️ `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note

🚥 👆 🚫 💭 🔺, ✅ [🔁: *"🏃 ❓"*](../async.md#_2){.internal-link target=_blank}.

///

### 🔁 5️⃣: 📨 🎚

🏧 😐 🌐❔ 👆 💭 👆 💪 🔗 🤙 🔠 🔁 (🎲 💗 🕰) 🎏 📨 ↩️ ⚙️ "💾" 💲, 👆 💪 ⚒ 🔢 `use_cache=False` 🕐❔ ⚙️ `Depends`:

```Python hl_lines="1"
async def needy_dependency(fresh_value: str = Depends(get_value, use_cache=False)):
    return {"fresh_value": fresh_value}
```

## 🌃

↖️ ⚪️➡️ 🌐 🎀 🔤 ⚙️ 📥, **🔗 💉** ⚙️ 🙅.

🔢 👈 👀 🎏 *➡ 🛠️ 🔢*.

Bu fonksiyon bir `GET` işlemi kullanılarak "`/`" bağlantısına bir istek geldiğinde **FastAPI** tarafından çağrılır.

Bu durumda bu fonksiyon bir `async` fonksiyondur.

---

Bu fonksiyonu `async def` yerine normal bir fonksiyon olarak da tanımlayabilirsiniz.

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Not

```Python
Settings()
```

a new `Settings` object would be created, and at creation it would read the `.env` file again.

If the dependency function was just like:

```Python
def get_settings():
    return Settings()
```

we would create that object for each request, and we would be reading the `.env` file for each request. ⚠️