Puedes usar un código de cierre de los [códigos válidos definidos en la especificación](https://tools.ietf.org/html/rfc6455#section-7.4.1).

///

### Prueba los WebSockets con dependencias { #try-the-websockets-with-dependencies }

Ejecuta tu aplicación:

<div class="termy">

```console
$ fastapi dev

                            </la:link></li>
                        </ol>
                    </div>
                </div>
            </div>
        </div>
        <section class="content">
            <la:form action="/admin/searchlist/">
                <la:hidden property="crudMode"/>
                <la:hidden property="q"/>
                <c:if test="${crudMode==2}">

        if (buffer.length < bufferIndex + 16 + 4 + 4 + 4 + 4) {
            throw new SMBProtocolDecodingException("Buffer too small for server GUID and capabilities section");
        }

        System.arraycopy(buffer, bufferIndex, this.serverGuid, 0, 16);
        bufferIndex += 16;

        this.capabilities = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

Every time you "log in with" Facebook, Google, GitHub, Microsoft, X (Twitter), that application is using OAuth2 with scopes.

In this section you will see how to manage authentication and authorization with the same OAuth2 with scopes in your **FastAPI** application.

/// warning

This is a more or less advanced section. If you are just starting, you can skip it.

Sie können einen „Closing“-Code verwenden, aus den [gültigen Codes, die in der Spezifikation definiert sind](https://tools.ietf.org/html/rfc6455#section-7.4.1).

///

### WebSockets mit Abhängigkeiten ausprobieren { #try-the-websockets-with-dependencies }

Führen Sie Ihre Anwendung aus:

<div class="termy">

```console
$ fastapi dev

# Benchmarks { #benchmarks }

Independent TechEmpower benchmarks show **FastAPI** applications running under Uvicorn as [one of the fastest Python frameworks available](https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7), only below Starlette and Uvicorn themselves (used internally by FastAPI).

But when checking benchmarks and comparisons you should keep the following in mind.

## This can be useful for LDAP password, etc
## The key in the secret must be 'config.env'
##
extraSecret: ~

## OpenID Identity Management
## The following section documents environment variables for enabling external identity management using an OpenID Connect (OIDC)-compatible provider.

//     if v is nil, len(v) is zero.
//
// For some arguments, such as a string literal or a simple array expression, the
// result can be a constant. See the Go language specification's "Length and
// capacity" section for details.
func len(v Type) int

// The cap built-in function returns the capacity of v, according to its type:
//
//   - Array: the number of elements in v (same as len(v)).

{* ../../docs_src/websockets_/tutorial002_an_py310.py hl[68:69,82] *}

/// info

由于这是一个 WebSocket，抛出 `HTTPException` 并不是很合理，而是抛出 `WebSocketException`。

您可以使用[规范中定义的有效代码](https://tools.ietf.org/html/rfc6455#section-7.4.1)。

///

### 尝试带有依赖项的 WebSockets { #try-the-websockets-with-dependencies }

运行你的应用程序：

<div class="termy">

```console
$ fastapi dev

To understand more about it, see the section [Benchmarks](https://fastapi.tiangolo.com/benchmarks/).

## Dependencies

FastAPI depends on Pydantic and Starlette.