```Python hl_lines="1  46-47"
{!../../../docs_src/websockets/tutorial001.py!}
```

!!! note "Technical Details"
    You could also use `from starlette.websockets import WebSocket`.

    **FastAPI** provides the same `WebSocket` directly just as a convenience for you, the developer. But it comes directly from Starlette.

## Await for messages and send messages

In your WebSocket route you can `await` for messages and send messages.

Wir könnten sie auch wie folgt importieren:

```Python
from app.routers import items, users
```

!!! info
    Die erste Version ist ein „relativer Import“:

    ```Python
    from .routers import items, users
    ```

    Die zweite Version ist ein „absoluter Import“:

    ```Python
    from app.routers import items, users
    ```

                }

                if (firSymbol.origin == FirDeclarationOrigin.DynamicScope) {
                    // A callable declaration from dynamic scope has no containing declaration as it comes from a dynamic type
                    // which is not based on a specific classifier
                    return null
                }
            }

            is KtClassLikeSymbol -> {

</blockquote>

## Investigation

}

// APIGroupDiscoveryList is a resource containing a list of APIGroupDiscovery.
// This is one of the types able to be returned from the /api and /apis endpoint and contains an aggregated
// list of API resources (built-ins, Custom Resource Definitions, resources from aggregated servers)
// that a cluster supports.
message APIGroupDiscoveryList {

limitations under the License.
*/


// This file was autogenerated by go-to-protobuf. Do not edit it manually!

syntax = "proto2";

package k8s.io.apimachinery.pkg.runtime;

// Package-wide variables from generator "generated".
option go_package = "k8s.io/apimachinery/pkg/runtime";

// RawExtension is used to hold extensions in external versions.
//

    We are not using `scopes` in this example, but the functionality is there if you need it.

Now, get the user data from the (fake) database, using the `username` from the form field.

If there is no such user, we return an error saying "Incorrect username or password".

For the error, we use the exception `HTTPException`:

=== "Python 3.10+"

That status code will be used in the response and will be added to the OpenAPI schema.

!!! note "Technical Details"
    You could also use `from starlette import status`.

    **FastAPI** provides the same `starlette.status` as `fastapi.status` just as a convenience for you, the developer. But it comes directly from Starlette.

## Tags

You can add tags to your *path operation*, pass the parameter `tags` with a `list` of `str` (commonly just one `str`):

* `Path()`
* `Body()`
* `Cookie()`
* `Header()`
* `Form()`
* `File()`

Sie können diese alle direkt von `fastapi` importieren:

```python
from fastapi import Body, Cookie, File, Form, Header, Path, Query
```

::: fastapi.Query

::: fastapi.Path

::: fastapi.Body

::: fastapi.Cookie

::: fastapi.Header

::: fastapi.Form

 *    certificate and its private key). The certificate's subject alternative names must match the
 *    server's hostname. The server must also have is a (possibly-empty) chain of intermediate
 *    certificates to establish trust from a root certificate to the server's certificate. The root
 *    certificate is not included in this chain.
 *  * The client's handshake certificates must include a set of trusted root certificates. They will