## Cycle de vie { #lifespan }

Vous pouvez définir cette logique de *démarrage* et d'*arrêt* en utilisant le paramètre `lifespan` de l'application `FastAPI`, et un « gestionnaire de contexte » (je vais vous montrer ce que c'est dans un instant).

Commençons par un exemple, puis voyons-le en détail.

Nous créons une fonction async `lifespan()` avec `yield` comme ceci :

	if err := d.calcError(); err != nil {
		return err
	}
	return d.disk.MakeVol(ctx, volume)
}

func (d *naughtyDisk) ListVols(ctx context.Context) (vols []VolInfo, err error) {
	if err := d.calcError(); err != nil {
		return nil, err
	}
	return d.disk.ListVols(ctx)
}

func (d *naughtyDisk) StatVol(ctx context.Context, volume string) (vol VolInfo, err error) {

    ) : DelegatingSSLSocketFactory(delegate) {
      override fun configureSocket(sslSocket: SSLSocket): SSLSocket {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
          val parameters = sslSocket.sslParameters
          val sni = parameters.serverNames
          Log.d("CustomSSLSocketFactory", "old SNI: $sni")
          parameters.serverNames = mutableListOf<SNIServerName>(SNIHostName("cloudflare-dns.com"))

@Testcontainers
@Isolated
class BasicLoomTest {
  @JvmField
  @RegisterExtension
  val platform = PlatformRule()

  // Use mock server so we are strictly testing OkHttp client only in this test.
  // We should test MockWebServer later.
  @Container
  val mockServer: MockServerContainer = MockServerContainer(MOCKSERVER_IMAGE)

  val capturedOut = ByteArrayOutputStream()

  private lateinit var executor: ExecutorService

   *
   * If there's nothing to read and no default value, this will throw an exception.
   */
  fun fromDer(reader: DerReader): T

  fun fromDer(byteString: ByteString): T {
    val buffer = Buffer().write(byteString)
    val reader = DerReader(buffer)
    return fromDer(reader)
  }

  /**
   * Writes [value] to this adapter, unless it is the default value and can be safely omitted.
   *

      $(this).val(picker.startDate.format("YYYY-MM-DD"));
    });
  $("input.form-control.daterange")
    .daterangepicker({
      autoUpdateInput: false,
      timePicker: false,
      singleDatePicker: false,
      locale: {
        format: "YYYY-MM-DD"
      }
    })
    .on("apply.daterangepicker", function(ev, picker) {
      $(this).val(
        picker.startDate.format("YYYY-MM-DD") +

    -----END CERTIFICATE-----
    """.trimIndent().decodeCertificatePem()

  private val client: OkHttpClient

  init {
    // This implementation just embeds the PEM files in Java strings; most applications will
    // instead read this from a resource file that gets bundled with the application.
    val certificates =
      HandshakeCertificates
        .Builder()

    assertThat(entry.hpackSize).isEqualTo(size)
  }

  private fun assertBytes(vararg bytes: Int) {
    val expected = intArrayToByteArray(bytes)
    val actual = bytesOut.readByteString()
    assertThat(actual).isEqualTo(expected)
  }

  private fun intArrayToByteArray(bytes: IntArray): ByteString {
    val data = ByteArray(bytes.size)
    for (i in bytes.indices) {
      data[i] = bytes[i].toByte()
    }

    val trustManagers =
      TrustManagerFactory
        .getInstance(TrustManagerFactory.getDefaultAlgorithm())
        .apply {
          init(null as KeyStore?)
        }.trustManagers!!
    check(trustManagers.size == 1 && trustManagers[0] is X509TrustManager) {
      "Unexpected default trust managers: ${trustManagers.contentToString()}"
    }

 */
public open class QueueDispatcher : Dispatcher() {
  protected val responseQueue: BlockingQueue<MockResponse> = LinkedBlockingQueue()
  private var failFastResponse: MockResponse? = null

  @Throws(InterruptedException::class)
  override fun dispatch(request: RecordedRequest): MockResponse {
    // To permit interactive/browser testing, ignore requests for favicons.
    val requestLine = request.requestLine