& 🌐 👫 🔜 ⚙️ 🎏 *️⃣ 🔗.

## ⚙️ `Depends` & 🎏

*️⃣ 🔗 👆 💪 🗄 ⚪️➡️ `fastapi` & ⚙️:

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

👫 👷 🎏 🌌 🎏 FastAPI 🔗/*➡ 🛠️*:

```Python hl_lines="66-77  76-91"
{!../../docs_src/websockets/tutorial002.py!}
```

/// info

errors.failed_to_read_request_file=Failed to read request file: {0}
errors.invalid_header_for_request_file=Invalid header: {0}

errors.invalid_query_unknown=The given query has unknown condition.
errors.invalid_query_parse_error=The given query is invalid.
errors.invalid_query_sort_value=The given sort ({0}) is invalid.
errors.invalid_query_unsupported_sort_field=The given sort ({0}) is not supported.

    }


    /**
     * This stream class is unbuffered. Therefore this method will always
     * return 0 for streams connected to regular files. However, a
     * stream created from a Named Pipe this method will query the server using a
     * "peek named pipe" operation and return the number of available bytes
     * on the server.
     */
    @Override
    public int available () throws IOException {

				</la:link>
				<div
					class="navbar-form col-md-6 col-sm-8 col-7 mr-auto p-0"
					role="search">
					<div class="input-group">
						<la:text property="q" maxlength="1000" styleId="query"
							styleClass="form-control" autocomplete="off" />
						<span class="input-group-append">
							<button type="submit" name="search" id="searchButton"
								class="btn btn-primary">

        )

    Component.PATH ->
      UrlComponentEncodingTesterJvmPlatform()
        .escapeForUri(
          '%'.code,
          '['.code,
          ']'.code,
        )

    Component.QUERY ->
      UrlComponentEncodingTesterJvmPlatform()
        .escapeForUri(
          '%'.code,
          '\\'.code,
          '^'.code,
          '`'.code,
          '{'.code,
          '|'.code,

				</la:link>
				<div
					class="navbar-form col-md-6 col-sm-8 col-7 mr-auto p-0"
					role="search">
					<div class="input-group">
						<la:text property="q" maxlength="1000" styleId="query"
							styleClass="form-control" autocomplete="off" />
						<span class="input-group-append">
							<button type="submit" name="search" id="searchButton"
								class="btn btn-primary">

Независимые тесты производительности приложений от TechEmpower показывают, что **FastAPI** под управлением Uvicorn <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">один из самых быстрых Python-фреймворков</a> и уступает только Starlette и Uvicorn (которые используются в FastAPI). (*)

                                {"title": "Q", "type": "string"}
                            ),
                            "name": "q",
                            "in": "query",
                        },
                    ],
                    "requestBody": {
                        "content": {
                            "application/json": {

                  or by the list, the advertisement is applied to all the IPAddressPools.
                items:
                  description: A label selector is a label query over a set of resources.
                    The result of matchLabels and matchExpressions are ANDed. An empty
                    label selector matches all objects. A null label selector matches
                    no objects.

{* ../../docs_src/background_tasks/tutorial002.py hl[13,15,22,25] *}

Dans cet exemple, les messages seront écrits dans le fichier `log.txt` après que la réponse soit envoyée.

S'il y avait une `query` (paramètre nommé `q`) dans la requête, alors elle sera écrite dans `log.txt` via une tâche d'arrière-plan.