xioutil.SafeClose(saverQuitCh)

	// Notify expire jobs final status to the configured endpoint
	buf, _ := json.Marshal(ri)
	if err := r.Notify(context.Background(), bytes.NewReader(buf)); err != nil {
		batchLogIf(context.Background(), fmt.Errorf("unable to notify %v", err))
	}

	return nil
}

//msgp:ignore batchExpireJobError
type batchExpireJobError struct {
	Code           string

/// note | Technische Details

Wenn Sie Abhängigkeiten mit `yield` haben, wird der Exit-Code *nach* der Middleware ausgeführt.

Wenn es Hintergrundtasks gab (dies wird später im [Hintergrundtasks](background-tasks.md){.internal-link target=_blank}-Abschnitt behandelt), werden sie *nach* allen Middlewares ausgeführt.

///

## Eine Middleware erstellen { #create-a-middleware }

func Encrypt(k *kms.KMS, plaintext io.Reader, ctx kms.Context) (io.Reader, error) {
	algorithm := sio.AES_256_GCM
	if !sioutil.NativeAES() {
		algorithm = sio.ChaCha20Poly1305
	}

	key, err := k.GenerateKey(context.Background(), &kms.GenerateKeyRequest{AssociatedData: ctx})
	if err != nil {
		return nil, err
	}
	stream, err := algorithm.Stream(key.Plaintext)
	if err != nil {
		return nil, err
	}

    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

/// info | 정보

클라이언트에 **하나의 응답** 만 전송됩니다. 이는 오류 응답 중 하나일 수도 있고,*경로 작업*에서 생성된 응답일 수도 있습니다.

  private var nextTcpConnectAtNanos = Long.MIN_VALUE

  /**
   * Plans currently being connected, and that will later be added to [connectResults]. This is
   * mutated by the call thread only. If is accessed by background connect threads.
   */
  private val tcpConnectsInFlight = CopyOnWriteArrayList<Plan>()

  /**
   * Results are posted here as they occur. The find job is done when either one plan completes

   */
  fun sameHostAndPort(url: HttpUrl): Boolean

  /**
   * A plan holds either an immediately-usable connection, or one that must be connected first.
   * These steps are split so callers can call [connectTcp] on a background thread if attempting
   * multiple plans concurrently.
   */
  interface Plan {
    val isReady: Boolean

    fun connectTcp(): ConnectResult

    fun connectTlsEtc(): ConnectResult

	outReq.ProtoMinor = 1

	f.rewriter.Rewrite(outReq)

	// Disable closeNotify when method GET for http pipelining
	if outReq.Method == http.MethodGet {
		quietReq := outReq.WithContext(context.Background())
		*outReq = *quietReq
	}
}

// headerRewriter is responsible for removing hop-by-hop headers and setting forwarding headers
type headerRewriter struct{}

    Note over dep_req: ✅ Abhängigkeit geschlossen
```

## Abhängigkeiten mit `yield`, `HTTPException`, `except` und Hintergrundtasks { #dependencies-with-yield-httpexception-except-and-background-tasks }

Abhängigkeiten mit `yield` haben sich im Laufe der Zeit weiterentwickelt, um verschiedene Anwendungsfälle abzudecken und einige Probleme zu beheben.

/// note | Detalhes Técnicos

Se você tiver dependências com `yield`, o código de saída será executado *depois* do middleware.

Se houver alguma tarefa em segundo plano (abordada na seção [Tarefas em segundo plano](background-tasks.md){.internal-link target=_blank}, que você verá mais adiante), ela será executada *depois* de todo o middleware.

///

## Criar um middleware { #create-a-middleware }

			cfg[config.APISubSys] = map[string]config.KVS{
				"api": {
					{Key: "gzip", Value: config.EnableOff},
				},
			}

			var err error
			globalLambdaTargetList, err = lambda.FetchEnabledTargets(context.Background(), cfg, http.DefaultTransport.(*http.Transport))
			if err != nil {
				t.Fatalf("failed to load lambda targets: %v", err)
			}