`BackgroundTasks`のみを使用することで (`BackgroundTask` ではなく)、`Request` オブジェクトを直接使用する場合と同様に、それを *path operations 関数* パラメーターとして使用し、**FastAPI** に残りの処理を任せることができます。

それでも、FastAPI で `BackgroundTask` を単独で使用することは可能ですが、コード内でオブジェクトを作成し、それを含むStarlette `Response` を返す必要があります。

詳細については、<a href="https://www.starlette.io/background/" class="external-link" target="_blank">バックグラウンドタスクに関する Starlette の公式ドキュメント</a>を参照して下さい。

## 警告

}

// Test canceling context while quorum servers report lock not found
func TestFailedRefreshLock(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping test in short mode.")
	}

	// Simulate Refresh response to return no locking found
	for i := range lockServers[:3] {
		lockServers[i].setRefreshReply(false)
		defer lockServers[i].setRefreshReply(true)
	}

	dm := NewDRWMutex(ds, "aap")

📨 ✔️ 📶 🙅 & 🏋️ 🔧, ⚫️ 📶 ⏩ ⚙️, ⏮️ 🤔 🔢. ✋️ 🎏 🕰, ⚫️ 📶 🏋️ & 🛃.

👈 ⚫️❔, 💬 🛂 🕸:

> 📨 1️⃣ 🏆 ⏬ 🐍 📦 🌐 🕰

🌌 👆 ⚙️ ⚫️ 📶 🙅. 🖼, `GET` 📨, 👆 🔜 ✍:

```Python
response = requests.get("http://example.com/some/url")
```

FastAPI 😑 🛠️ *➡ 🛠️* 💪 👀 💖:

```Python hl_lines="1"
@app.get("/some/url")
def read_url():
    return {"message": "Hello World"}
```

can be viewed by doing a GET/HEAD on the object version - it will return a `X-Minio-Replication-DeleteMarker-Status` header and http response code of `405`. In the case of permanent deletes, if the delete replication is pending or failed to propagate to the target cluster, GET/HEAD will return additional `X-Minio-Replication-Delete-Status` header and a http response code of `405`.

![delete](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/replication/DELETE_bucket_replication.png)...

  // ExpirationSeconds is the requested duration of validity of the request. The
  // token issuer may return a token with a different validity duration so a
  // client needs to check the 'expiration' field in a response.
  // +optional
  optional int64 expirationSeconds = 4;

  // BoundObjectRef is a reference to an object that the token will be bound to.
  // The token will only be valid for as long as the bound object exists.

import org.codelibs.fess.mylasta.mail.TestmailPostcard;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.core.mail.Postbox;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

/**
 * @author shinsuke
 * @author Shunji Makino
 */

import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.job.JobManager;
import org.lastaflute.job.key.LaJobUnique;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import jakarta.annotation.Resource;

public class AdminWizardAction extends FessAdminAction {

                "summary": "Read Items",
                "operationId": "read_items_items__get",
                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {
                            "application/json": {
                                "schema": {}
                            }
                        }
                    }

          # The "digest" that allows us to pull an image is not the digest as
          # returned by the API, but a sha256sum of the entire chunk of image
          # metadata. gcr.io helpfully includes it in the header of the response
          # as docker-content-digest: sha256:[digest]. Note we use egrep to
          # match exactly sha256:<hash> because curl may include a ^M symbol at
          # the end of the line.

#### The time to answer helps the attackers

At that point, by noticing that the server took some microseconds longer to send the "Incorrect username or password" response, the attackers will know that they got _something_ right, some of the initial letters were right.

And then they can try again knowing that it's probably something more similar to `stanleyjobsox` than to `johndoe`.