<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.

	activeRequests int64
	totalRequests  int64
	failedRequests int64

	lazyInit lazyInit

	id         event.TargetID
	args       WebhookArgs
	transport  *http.Transport
	httpClient *http.Client
	loggerOnce logger.LogOnce
	cancel     context.CancelFunc
	cancelCh   <-chan struct{}
}

// ID - returns target ID.
func (target *WebhookTarget) ID() event.TargetID {
	return target.id
}

			Message:    err.Error(),
			StatusCode: http.StatusInternalServerError,
		}
	}
	req.Header.Set("User-Agent", getUserAgent(mode))

	client := &http.Client{Transport: getUpdateTransport(timeout)}
	resp, err := client.Do(req)
	if err != nil {
		if xnet.IsNetworkOrHostDown(err, false) {
			return content, AdminError{
				Code:       AdminUpdateURLNotReachable,
				Message:    err.Error(),

  tag: RELEASE.2024-12-18T13-15-44Z
  pullPolicy: IfNotPresent

imagePullSecrets: []
# - name: "image-pull-secret"

## Set default image, imageTag, and imagePullPolicy for the `mc` (the minio
## client used to create a default bucket).
##
mcImage:
  repository: quay.io/minio/mc
  tag: RELEASE.2024-11-21T17-21-54Z
  pullPolicy: IfNotPresent

## minio mode, i.e. standalone or distributed

export MINIO_CI_CD=1

if [ ! -f ./mc ]; then
	os="$(uname -s)"
	arch="$(uname -m)"
	case "${arch}" in
	"x86_64")
		arch="amd64"
		;;
	esac

	wget -O mc https://dl.minio.io/client/mc/release/${os,,}-${arch,,}/mc &&
		chmod +x mc
fi

for i in $(seq 1 4); do
	s3Port="$((9000 + i))"
	consolePort="$((s3Port + 1000))"

	cat <<EOF >/tmp/minio.configfile.$i
version: v1

time="2020-07-12T20:45:50Z" level=info msg="config issuer: http://127.0.0.1:5556/dex"
time="2020-07-12T20:45:50Z" level=info msg="config storage: sqlite3"
time="2020-07-12T20:45:50Z" level=info msg="config static client: Example App"
time="2020-07-12T20:45:50Z" level=info msg="config connector: mock"
time="2020-07-12T20:45:50Z" level=info msg="config connector: local passwords enabled"

from typing_extensions import ParamSpec

P = ParamSpec("P")


class BackgroundTasks(StarletteBackgroundTasks):
    """
    A collection of background tasks that will be called after a response has been
    sent to the client.

    Read more about it in the
    [FastAPI docs for Background Tasks](https://fastapi.tiangolo.com/tutorial/background-tasks/).

    ## Example

    ```python
    from fastapi import BackgroundTasks, FastAPI

{* ../../docs_src/app_testing/tutorial001_py39.py hl[2,12,15:18] *}

/// tip

Notice that the testing functions are normal `def`, not `async def`.

And the calls to the client are also normal calls, not using `await`.

This allows you to use `pytest` directly without complications.

///

/// note | Technical Details

You could also use `from starlette.testclient import TestClient`.

```mermaid
sequenceDiagram
    participant Client as Клиент
    participant Proxy as Прокси/Балансировщик нагрузки
    participant Server as FastAPI-сервер

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

    Note over Proxy: Прокси-сервер добавляет пересылаемые заголовки

	"context"
	"net"
	"time"
)

// CheckPortAvailability - check if given host and port is already in use.
// Note: The check method tries to listen on given port and closes it.
// It is possible to have a disconnected client in this tiny window of time.
func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {
	lc := &net.ListenConfig{}

	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
	defer cancel()