### バックグラウンドタスクと `yield` を伴う依存関係、技術詳細 { #background-tasks-and-dependencies-with-yield-technical-details }

FastAPI 0.106.0 より前では、`yield` の後で例外を送出することはできませんでした。`yield` を持つ依存関係の終了コードはレスポンス送信「後」に実行されるため、[例外ハンドラ](../tutorial/handling-errors.md#install-custom-exception-handlers)はすでに実行済みでした。

これは主に、依存関係が "yield" した同じオブジェクトをバックグラウンドタスク内で利用できるようにするための設計でした。終了コードはバックグラウンドタスク完了後に実行されるからです。

これは、レスポンスがネットワーク上を移動するのを待っている間にリソースを保持しないようにする意図で、FastAPI 0.106.0 で変更されました。

@J2ktIncompatible
public class QuantilesTest extends TestCase {

  /*
   * Since Quantiles provides a fluent-style API, each test covers a chain of methods resulting in
   * the computation of one or more quantiles (or in an error) rather than individual methods. The
   * tests are divided into three sections:
   * 1. Tests on a hardcoded dataset for chains starting with median(), quartiles(), and scale(10);

@J2ktIncompatible
public class QuantilesTest extends TestCase {

  /*
   * Since Quantiles provides a fluent-style API, each test covers a chain of methods resulting in
   * the computation of one or more quantiles (or in an error) rather than individual methods. The
   * tests are divided into three sections:
   * 1. Tests on a hardcoded dataset for chains starting with median(), quartiles(), and scale(10);

.Values.configPathmc }} MC_CONFIG_DIR="{{ .Values.configPathmc }}" MC="/usr/bin/mc --insecure --config-dir ${MC_CONFIG_DIR}" {{- else }} MC="/usr/bin/mc --insecure" {{- end }} # AccessKey and secretkey credentials file are added to prevent shell execution errors caused by special characters. # Special characters for example : ',",<,>,{, MINIO_ACCESSKEY_SECRETKEY_TMP="/tmp/accessKey_and_secretKey_svcacct_tmp" # connectToMinio # Use a check-sleep-check loop to wait for MinIO service to be available connectToMinio()...

.Values.configPathmc }} MC_CONFIG_DIR="{{ .Values.configPathmc }}" MC="/usr/bin/mc --insecure --config-dir ${MC_CONFIG_DIR}" {{- else }} MC="/usr/bin/mc --insecure" {{- end }} # AccessKey and secretkey credentials file are added to prevent shell execution errors caused by special characters. # Special characters for example : ',",<,>,{, MINIO_ACCESSKEY_SECRETKEY_TMP="/tmp/accessKey_and_secretKey_svcacct_tmp" # connectToMinio # Use a check-sleep-check loop to wait for MinIO service to be available connectToMinio()...

 * <p>Event subscriber methods must accept only one argument: the event.
 *
 * <p>Subscribers should not, in general, throw. If they do, the EventBus will catch and log the
 * exception. This is rarely the right solution for error handling and should not be relied upon; it
 * is intended solely to help find problems during development.
 *
 * <p>The EventBus guarantees that it will not call a subscriber method from multiple threads

        int[].class,
        Object[].class,
        UnsignedInteger.class,
        UnsignedLong.class,
        BigInteger.class,
        BigDecimal.class,
        Throwable.class,
        Error.class,
        Exception.class,
        RuntimeException.class,
        Charset.class,
        Locale.class,
        Currency.class,
        List.class,
        Entry.class,
        Object.class,

                HttpSession session = req.getSession(false);
                if (session != null && session.getAttribute("npa-workgroup") != null) {
                    throw new IOException("Test error");
                } else {
                    resp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                    resp.setHeader("WWW-Authenticate", "NTLM");
                    resp.flushBuffer();

Update `get_current_user` to receive the same token as before, but this time, using JWT tokens.

Decode the received token, verify it, and return the current user.

If the token is invalid, return an HTTP error right away.

{* ../../docs_src/security/tutorial004_an_py310.py hl[93:110] *}

## Update the `/token` *path operation* { #update-the-token-path-operation }

Create a `timedelta` with the expiration time of the token.

- `DecryptKey`: Takes a key ID and an encrypted data key and returns the plain data key - the decryption of the encrypted data key using the master key referenced by the key ID - on success or an error otherwise.

More details about supported KMS implementations and configuration can be found at the [KMS guide](https://github.com/minio/minio/blob/master/docs/kms/README.md).