<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## Клиент WebSockets { #websockets-client }

### В продакшн { #in-production }

В продакшн у вас, вероятно, есть фронтенд, созданный с помощью современного фреймворка вроде React, Vue.js или Angular.

package http

import (
	"context"
	"crypto/tls"
	"crypto/x509"
	"net/http"
	"syscall"
	"time"

	"github.com/minio/pkg/v3/certs"
)

// tlsClientSessionCacheSize is the cache size for client sessions.
var tlsClientSessionCacheSize = 100

const (
	// WriteBufferSize 64KiB moving up from 4KiB default
	WriteBufferSize = 64 << 10

	// ReadBufferSize 64KiB moving up from 4KiB default

		jbytes, err := json.Marshal(healSequenceStatus{
			Summary: healFinishedStatus,
		})
		return jbytes, toAdminAPIErrCode(GlobalContext, err)
	}

	// Check if client-token is valid
	if clientToken != h.clientToken {
		return nil, ErrHealInvalidClientToken
	}

	// Take lock to access and update the heal-sequence
	h.mutex.Lock()
	defer h.mutex.Unlock()

import copy
import http.client
import inspect
import warnings
from collections.abc import Sequence
from typing import Any, Literal, cast

from fastapi import routing
from fastapi._compat import (
    ModelField,
    get_definitions,
    get_flat_models_from_fields,
    get_model_name_map,
    get_schema_from_model_field,
    lenient_issubclass,
)
from fastapi.datastructures import DefaultPlaceholder, _Unset

Wenn beim Erstellen von Web-APIs mit FastAPI ein Fehler in unserem Code auftritt, wird FastAPI ihn normalerweise dem einzelnen <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr> zurückgeben, der den Fehler ausgelöst hat. 🛡

Der Client erhält für diesen Request einen **500 Internal Server Error**, aber die Anwendung arbeitet bei den nächsten Requests weiter, anstatt einfach komplett abzustürzen.

Sie sehen die JSON-<abbr title="Response - Antwort: Daten, die der Server zum anfragenden Client zurücksendet">Response</abbr> als:

```JSON
{"item_id": 5, "q": "somequery"}
```

Sie haben bereits eine API erstellt, welche:

* HTTP-<abbr title="Request - Anfrage: Daten, die der Client zum Server sendet">Requests</abbr> auf den _Pfaden_ `/` und `/items/{item_id}` entgegennimmt.

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

    Proxy->>Server: HTTP Request<br/>X-Forwarded-For: [client IP]<br/>X-Forwarded-Proto: https<br/>X-Forwarded-Host: mysuperapp.com<br/>Path: /items

 */
package jcifs.internal;

/**
 * Container class for SMB protocol negotiation state.
 * Holds the negotiation request, response, and raw buffer data exchanged
 * between client and server during SMB protocol version negotiation.
 *
 * @author mbechler
 */
public final class SmbNegotiation {

    private final SmbNegotiationRequest request;
    private final SmbNegotiationResponse response;

/* jcifs msrpc client library in Java
 * Copyright (C) 2006  "Michael B. Allen" <jcifs at samba dot org>
 *                     "Eric Glass" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *

/* jcifs msrpc client library in Java
 * Copyright (C) 2008  "Michael B. Allen" <jcifs at samba dot org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,