client = TestClient(app)


def test_swagger_ui():
    response = client.get("/docs")
    assert response.status_code == 200, response.text
    assert (
        '"deepLinking": false,' in response.text
    ), "overridden configs should be preserved"
    assert (
        '"deepLinking": true' not in response.text
    ), "overridden configs should not include the old value"
    assert (
        '"syntaxHighlight": false' not in response.text

    ), "default configs should be preserved"
    assert (
        '"layout": "BaseLayout",' in response.text
    ), "default configs should be preserved"
    assert (
        '"deepLinking": true,' in response.text
    ), "default configs should be preserved"
    assert (
        '"showExtensions": true,' in response.text
    ), "default configs should be preserved"
    assert (

from fastapi import FastAPI

app = FastAPI(swagger_ui_parameters={"deepLinking": False})


@app.get("/users/{username}")
async def read_user(username: str):

    ), "default configs should be preserved"
    assert (
        '"layout": "BaseLayout",' in response.text
    ), "default configs should be preserved"
    assert (
        '"deepLinking": true,' in response.text
    ), "default configs should be preserved"
    assert (
        '"showExtensions": true,' in response.text
    ), "default configs should be preserved"
    assert (

```Python
{!../../../fastapi/openapi/docs.py[ln:7-23]!}
```

You can override any of them by setting a different value in the argument `swagger_ui_parameters`.

For example, to disable `deepLinking` you could pass these settings to `swagger_ui_parameters`:

```Python hl_lines="3"
{!../../../docs_src/configure_swagger_ui/tutorial003.py!}
```

## Other Swagger UI Parameters

```Python
{!../../../fastapi/openapi/docs.py[ln:7-23]!}
```

Sie können jede davon überschreiben, indem Sie im Argument `swagger_ui_parameters` einen anderen Wert festlegen.

Um beispielsweise `deepLinking` zu deaktivieren, könnten Sie folgende Einstellungen an `swagger_ui_parameters` übergeben:

```Python hl_lines="3"
{!../../../docs_src/configure_swagger_ui/tutorial003.py!}
```

        Default configurations for Swagger UI.

        You can use it as a template to add any other configurations needed.
        """
    ),
] = {
    "dom_id": "#swagger-ui",
    "layout": "BaseLayout",
    "deepLinking": True,
    "showExtensions": True,
    "showCommonExtensions": True,
}


def get_swagger_ui_html(
    *,
    openapi_url: Annotated[
        str,
        Doc(
            """