</details>

### Esegui il server

Puoi far partire il server così:

<div class="termy">

```console
$ uvicorn main:app --reload

INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [28720]
INFO:     Started server process [28722]
INFO:     Waiting for application startup.

    }

    /** The CRUD operation mode for this form. */
    @ValidateTypeFailure
    public Integer crudMode;

    /** The hostname of the file server (maximum 100 characters). */
    @Size(max = 100)
    public String hostname;

    /** The port number of the file server (0 to 2147483647). */
    @Min(value = 0)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer port;

package okhttp3

import java.io.IOException
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import org.junit.jupiter.api.Test

class DispatcherCleanupTest {
  @StartStop
  private val server = MockWebServer()

  @Test
  fun testFinish() {
    val okhttp = OkHttpClient()
    val callback =
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,

    }

    @Test
    @DisplayName("getHostName should return valid hostname or address")
    void testGetHostNameContract() {
        // Given
        String expectedHostName = "server.example.com";
        when(mockAddress.getHostName()).thenReturn(expectedHostName);

        // When
        String hostName = mockAddress.getHostName();

        // Then

# Header-Parameter

So wie `Query`-, `Path`-, und `Cookie`-Parameter können Sie auch <abbr title='Header – Kopfzeilen, Header, Header-Felder: Schlüssel-Wert-Metadaten, die vom Client beim Request, und vom Server bei der Response gesendet werden'>Header</abbr>-Parameter definieren.

## `Header` importieren

Importieren Sie zuerst `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## `Header`-Parameter deklarieren

to the community.  It requires the operator of a network server to
provide the source code of the modified version running there to the
users of that server.  Therefore, public use of a modified version, on
a publicly accessible server, gives the public access to the source
code of the modified version.

  An older license, called the Affero General Public License and

            } catch (final IOException ex) {}
        }
        final int domainLength = domain.length;
        byte[] server = {};
        try {
            final String host = NbtAddress.getLocalHost().getHostName();
            if (host != null) {
                try {
                    server = host.getBytes(UNI_ENCODING);
                } catch (final IOException ex) {}
            }

    Executors::class.java.getMethod("newVirtualThreadPerTaskExecutor").invoke(null) as ExecutorService

  @Test
  fun testRequest() {
    server.enqueue(MockResponse())

    val request = Request(server.url("/"))

    client.newCall(request).execute().use {
      assertThat(it.code).isEqualTo(200)
    }
  }

  @Test
  fun testIfSupported() {

</details>

### Chạy ứng dụng

Chạy server như sau:

<div class="termy">

```console
$ uvicorn main:app --reload

INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [28720]
INFO:     Started server process [28722]
INFO:     Waiting for application startup.
INFO:     Application startup complete.

		},
		config.PolicyOPASubSys: {
			Key:         config.PolicyOPASubSys,
			Description: "[DEPRECATED - use `policy_plugin` instead] enable external OPA for policy enforcement",
		},
	}

	config.RegisterHelpDeprecatedSubSys(deprecatedHelpKVMap)
}

var (
	// globalServerConfig server config.
	globalServerConfig   config.Config