* protect ourselves from that we want to make sure that tasks don't spin too much waiting for the
   * interrupting thread to complete the protocol.
   */
  /*
   * This test hangs (or maybe is just *very* slow) under Android.
   *
   * TODO(b/218700094): Ideally, get this to pass under Android. Failing that, convince ourselves

   * protect ourselves from that we want to make sure that tasks don't spin too much waiting for the
   * interrupting thread to complete the protocol.
   */
  /*
   * This test hangs (or maybe is just *very* slow) under Android.
   *
   * TODO(b/218700094): Ideally, get this to pass under Android. Failing that, convince ourselves

```

Bu da şu koda eşdeğerdir:

```python
from backend.main import app
```

### path ile `fastapi dev` { #fastapi-dev-with-path }

Ayrıca `fastapi dev` komutuna dosya path'ini de verebilirsiniz; hangi FastAPI app nesnesinin kullanılacağını tahmin eder:

```console
$ fastapi dev main.py
```

Ancak `fastapi` komutunu her çağırdığınızda doğru path'i geçmeyi hatırlamanız gerekir.

bats eat cats?' for, you see, as she couldn't answer either
question, it didn't much matter which way she put it.  She felt
that she was dozing off, and had just begun to dream that she
was walking hand in hand with Dinah, and saying to her very
earnestly, `Now, Dinah, tell me the truth:  did you ever eat a
bat?' when suddenly, thump! thump! down she came upon a heap of
sticks and dry leaves, and the fall was over.

#### Ein „professioneller“ Angriff { #a-professional-attack }

Natürlich würden die Angreifer das alles nicht von Hand versuchen, sondern ein Programm dafür schreiben, möglicherweise mit Tausenden oder Millionen Tests pro Sekunde. Und würden jeweils nur einen zusätzlichen richtigen Buchstaben erhalten.

bats eat cats?' for, you see, as she couldn't answer either
question, it didn't much matter which way she put it.  She felt
that she was dozing off, and had just begun to dream that she
was walking hand in hand with Dinah, and saying to her very
earnestly, `Now, Dinah, tell me the truth:  did you ever eat a
bat?' when suddenly, thump! thump! down she came upon a heap of
sticks and dry leaves, and the fall was over.

```

</div>

Çıktıda, şuna benzer bir satır göreceksiniz:

```hl_lines="4"
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

Bu satır, uygulamanızın yerel makinenizde hangi URL'de sunulduğunu gösterir.

### Kontrol Edelim { #check-it }

Tarayıcınızı açıp [http://127.0.0.1:8000](http://127.0.0.1:8000) adresine gidin.

Şu şekilde bir JSON response göreceksiniz:

```JSON

In den meisten Fällen würden (und sollten) Sie einen „Terminierungsproxy“ haben, der HTTPS für Sie verwaltet. Dies hängt davon ab, wie Sie Ihre Anwendung deployen. Ihr Anbieter könnte dies für Sie erledigen, oder Sie müssen es selbst einrichten.

/// tip | Tipp

Sadece bu Python type tanımıyla, **FastAPI** şunları yapar:

* Request'in body'sini JSON olarak okur.
* İlgili type'lara dönüştürür (gerekirse).
* Veriyi doğrular (validate eder).
    * Veri geçersizse, tam olarak nerede ve hangi verinin hatalı olduğunu söyleyen, anlaşılır bir hata döndürür.
* Aldığı veriyi `item` parametresi içinde size verir.

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkPositionIndexes;
import static java.lang.Byte.toUnsignedInt;
import static java.lang.Math.min;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;