```Python hl_lines="2  10"
{!../../../docs_src/custom_response/tutorial009.py!}
```

You can also use the `response_class` parameter:

```Python hl_lines="2  8  10"
{!../../../docs_src/custom_response/tutorial009b.py!}
```

In this case, you can return the file path directly from your *path operation* function.

## Custom response class

```Python hl_lines="7  21  23"
{!../../../docs_src/custom_response/tutorial004.py!}
```

👉 🖼, 🔢 `generate_html_response()` ⏪ 🏗 & 📨 `Response` ↩️ 🛬 🕸 `str`.

🛬 🏁 🤙 `generate_html_response()`, 👆 ⏪ 🛬 `Response` 👈 🔜 🔐 🔢 **FastAPI** 🎭.

✋️ 👆 🚶‍♀️ `HTMLResponse` `response_class` 💁‍♂️, **FastAPI** 🔜 💭 ❔ 📄 ⚫️ 🗄 & 🎓 🩺 🕸 ⏮️ `text/html`:

<img src="/img/tutorial/custom-response/image01.png">

## 💪 📨

Sie können eine `RedirectResponse` direkt zurückgeben:

```Python hl_lines="2  9"
{!../../../docs_src/custom_response/tutorial006.py!}
```

---

Oder Sie können sie im Parameter `response_class` verwenden:


```Python hl_lines="2  7  9"
{!../../../docs_src/custom_response/tutorial006b.py!}
```

Wenn Sie das tun, können Sie die URL direkt von Ihrer *Pfadoperation*-Funktion zurückgeben.

```Python hl_lines="13  15"
{!../../../docs_src/custom_request_and_route/tutorial002.py!}
```

Wenn eine Exception auftritt, befindet sich die `Request`-Instanz weiterhin im Gültigkeitsbereich, sodass wir den Requestbody lesen und bei der Fehlerbehandlung verwenden können:

```Python hl_lines="16-18"
{!../../../docs_src/custom_request_and_route/tutorial002.py!}
```

    checkEntry(entry, "custom-bar", "custom-header", 55)
    entry = writer.dynamicTable[tableLength - 2]!!
    checkEntry(entry, "custom-baz", "custom-header", 55)
  }

  @Test
  fun readerEviction() {
    val headerBlock =
      headerEntries(
        "custom-foo",
        "custom-header",
        "custom-bar",
        "custom-header",
        "custom-baz",
        "custom-header",
      )

# Custom Response Classes - File, HTML, Redirect, Streaming, etc.

There are several custom response classes you can use to create an instance and return them directly from your *path operations*.

Read more about it in the [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/).

You can import them directly from `fastapi.responses`:

```python
from fastapi.responses import (
    FileResponse,

### Normal **FastAPI**

First, write all your **FastAPI** application as normally:

```Python hl_lines="1  4  7-9"
{!../../../docs_src/extending_openapi/tutorial001.py!}
```

### Generate the OpenAPI schema

Then, use the same utility function to generate the OpenAPI schema, inside a `custom_openapi()` function:

```Python hl_lines="2  15-21"

## Custom Headers

Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the 'X-' prefix</a>.

        "//tensorflow/core/grappler:grappler_item",
        "//tensorflow/core/grappler/costs:graph_properties",
        "//tensorflow/core/grappler/optimizers:custom_graph_optimizer",
        "//tensorflow/core/grappler/optimizers:custom_graph_optimizer_registry",
        "//tensorflow/core/platform:logging",
        "//tensorflow/core/platform:status",
        "@com_google_absl//absl/status",

  override fun configureTlsExtensions(
    sslSocket: SSLSocket,
    hostname: String?,
    protocols: List<Protocol>,
  ) {
    // No TLS extensions if the socket class is custom.
    if (matchesSocket(sslSocket)) {
      try {
        // Enable session tickets.
        setUseSessionTickets.invoke(sslSocket, true)

        // Assume platform support on 24+