override val call: Call,
    val url: HttpUrl,
  ) : CallEvent()

  data class ProxySelectEnd(
    override val timestampNs: Long,
    override val call: Call,
    val url: HttpUrl,
    val proxies: List<Proxy>?,
  ) : CallEvent() {
    override fun closes(event: CallEvent): Boolean = event is ProxySelectStart && call == event.call && url == event.url
  }

  data class DnsStart(

先看看在加入回呼之前，一個一般的 API 應用會長什麼樣子。

它會有一個接收 `Invoice` body 的「路徑操作」，以及一個查詢參數 `callback_url`，其中包含用於回呼的 URL。

這部分很正常，多數程式碼你應該已經很熟悉了：

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[7:11,34:51] *}

/// tip

`callback_url` 查詢參數使用的是 Pydantic 的 [Url](https://docs.pydantic.dev/latest/api/networks/) 型別。

///

唯一新的地方是在「路徑操作裝飾器」中加入參數 `callbacks=invoices_callback_router.routes`。我們接下來會看到那是什麼。

{
    "properties": {
      "userInfoId": {
        "type": "keyword"
      },
      "url": {
        "type": "keyword"
      },
      "docId": {
        "type": "keyword"
      },
      "queryId": {
        "type": "keyword"
      },
      "createdAt": {
        "type": "date",
        "format": "date_optional_time"
      }
    }

type MyInt int

type Time struct{}

type S struct {
	// Deprecated: use PublicTime.
	Public     *int
	private    *int
	PublicTime Time
}

// Deprecated: use URI.
type URL struct{}

type EmbedURLPtr struct {
	*URL
}

type S2 struct {
	// Deprecated: use T.
	S
	Extra bool
}

var X0 int64

var (
	Y int
	X I
)

type Namer interface {
	Name() string
}

     * @throws IOException
     */
    @BeforeEach
    void setUp() throws IOException {
        // Create a real URL instead of mocking to avoid protocol issues
        mockUrl = new URL("http://test.example.com/path");

        // Basic setup for mocks to avoid NullPointerExceptions
        when(mockConnection.getURL()).thenReturn(mockUrl);

{
    "properties": {
      "url": {
        "type": "keyword"
      },
      "threadName": {
        "type": "keyword"
      },
      "errorName": {
        "type": "keyword"
      },
      "errorLog": {
        "type": "keyword"
      },
      "errorCount": {
        "type": "integer"
      },
      "lastAccessTime": {
        "type": "long"
      },
      "configId": {
        "type": "keyword"
      }

    "tax": 3.2,
    "tags": [
        "rock",
        "metal",
        "bar"
    ],
    "images": [
        {
            "url": "http://example.com/baz.jpg",
            "name": "The Foo live"
        },
        {
            "url": "http://example.com/dave.jpg",
            "name": "The Baz"
        }
    ]
}
```

/// info | 정보

`images` 키가 이제 이미지 객체 리스트를 갖는지 주목하세요.

| HttpUrl.get(URI)                    | URI.toHttpUrlOrNull()           |
| HttpUrl.get(URL)                    | URL.toHttpUrlOrNull()           |
| HttpUrl.parse(String)               | String.toHttpUrlOrNull()        |
| HttpUrl.uri()                       | HttpUrl.toUri()                 |
| HttpUrl.url()                       | HttpUrl.toUrl()                 |

    server.enqueue(MockResponse(body = "b"))
    val request = Request(server.url("/"))
    assertConnectionReused(request, request)
  }

  @Test
  fun connectionsAreReusedForPosts() {
    server.enqueue(MockResponse(body = "a"))
    server.enqueue(MockResponse(body = "b"))
    val request =
      Request(
        url = server.url("/"),
        body = "request body".toRequestBody("text/plain".toMediaType()),
      )

versionId="$(./mc ls --json --versions myminio1/testbucket/dir/ | tail -n1 | jq -r .versionId)"

export AWS_ACCESS_KEY_ID=minioadmin
export AWS_SECRET_ACCESS_KEY=minioadmin
export AWS_REGION=us-east-1

aws s3api --endpoint-url http://localhost:9001 delete-object --bucket testbucket --key dir/file --version-id "$versionId"

./mc ls -r --versions myminio1/testbucket >/tmp/myminio1.txt
./mc ls -r --versions myminio2/testbucket >/tmp/myminio2.txt