---
hide:
  - navigation
---

# Features

## FastAPI features

**FastAPI** gives you the following:

### Based on open standards

    **FastAPI** bietet dieselben `starlette.responses` auch via `fastapi.responses` an, als Annehmlichkeit für Sie, den Entwickler. Die meisten verfügbaren Responses kommen aber direkt von Starlette. Das Gleiche gilt für `Request`.

## Die Default-Exceptionhandler überschreiben

**FastAPI** hat einige Default-Exceptionhandler.

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Open your browser at <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>  and create a couple of users.

* **Robust**: Get production-ready code. With automatic interactive documentation.

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

Im Hintergrund erstellt das `open("./somefile.txt")` ein Objekt, das als „Kontextmanager“ bezeichnet wird.

```Python hl_lines="2  14"
{!../../../docs_src/custom_response/tutorial007.py!}
```

#### Using `StreamingResponse` with file-like objects

If you have a file-like object (e.g. the object returned by `open()`), you can create a generator function to iterate over that file-like object.

That way, you don't have to read it all first in memory, and you can pass that generator function to the `StreamingResponse`, and return it.

Możesz:

* <a href="https://github.com/tiangolo" class="external-link" target="_blank">Śledzić mnie na **GitHubie**</a>.
    * Zobacz inne projekty open source, które stworzyłem, a mogą być dla Ciebie pomocne.
    * Śledź mnie, aby dostać powiadomienie, gdy utworzę nowy projekt open source.

    !!! tip
        Prefer to use the `Annotated` version if possible.

    ```Python hl_lines="2  6  10"
    {!> ../../../docs_src/security/tutorial006.py!}
    ```

When you try to open the URL for the first time (or click the "Execute" button in the docs) the browser will ask you for your username and password:

<img src="/img/tutorial/security/image12.png">

## Check the username

✊ 🔁 🚂 ⚖️ 😐 🚂/🎻 & 🎏 📨 💪.

```Python hl_lines="2  14"
{!../../../docs_src/custom_response/tutorial007.py!}
```

#### ⚙️ `StreamingResponse` ⏮️ 📁-💖 🎚

🚥 👆 ✔️ 📁-💖 🎚 (✅ 🎚 📨 `open()`), 👆 💪 ✍ 🚂 🔢 🔁 🤭 👈 📁-💖 🎚.

👈 🌌, 👆 🚫 ✔️ ✍ ⚫️ 🌐 🥇 💾, & 👆 💪 🚶‍♀️ 👈 🚂 🔢 `StreamingResponse`, & 📨 ⚫️.

👉 🔌 📚 🗃 🔗 ⏮️ ☁ 💾, 📹 🏭, & 🎏.

---
hide:
  - navigation
---

# Cechy

## Cechy FastAPI

**FastAPI** zapewnia Ci następujące korzyści:

### Oparcie o standardy open