The status of replication can be monitored by configuring event notifications on the source and target buckets using `mc event add`.On the source side, the `s3:PutObject`, `s3:Replication:OperationCompletedReplication` and `s3:Replication:OperationFailedReplication` events show the status of replication in the `X-Amz-Replication-Status` metadata.

				return
			}

			// Notify object created events.
			sendEvent(eventArgsList[i])

			if eventArgsList[i].Object.NumVersions > int(scannerExcessObjectVersions.Load()) {
				// Send events for excessive versions.
				sendEvent(eventArgs{
					EventName:    event.ObjectManyVersions,
					BucketName:   eventArgsList[i].Object.Bucket,

/**
 * <a href="https://guava.dev/EventBus">Discouraged</a> in favor of dependency injection and
 * concurrency frameworks, EventBus allows publish-subscribe-style communication.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/EventBusExplained">{@code EventBus}</a>.
 */
@CheckReturnValue
@ParametersAreNonnullByDefault
package com.google.common.eventbus;

import okio.ForwardingSink
import okio.ForwardingSource
import okio.Sink
import okio.Source
import okio.buffer

/**
 * Transmits a single HTTP request and a response pair. This layers connection management and events
 * on [ExchangeCodec], which handles the actual I/O.
 */
class Exchange(
  internal val call: RealCall,
  internal val eventListener: EventListener,
  internal val finder: ExchangeFinder,

    ) -> Callable[[DecoratedCallable], DecoratedCallable]:
        """
        Add an event handler for the router.

        `on_event` is deprecated, use `lifespan` event handlers instead.

        Read more about it in the
        [FastAPI docs for Lifespan Events](https://fastapi.tiangolo.com/advanced/events/#alternative-events-deprecated).
        """

/**
 * <a href="https://guava.dev/EventBus">Discouraged</a> in favor of dependency injection and
 * concurrency frameworks, EventBus allows publish-subscribe-style communication.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/EventBusExplained">{@code EventBus}</a>.
 */
@CheckReturnValue
@ParametersAreNonnullByDefault
package com.google.common.eventbus;

# Module okhttp-sse

```
https://yourapi.com/invoices/?callback_url=https://www.external.org/events
```

⏮️ 🎻 💪:

```JSON
{
    "id": "2expen51ve",
    "customer": "Mr. Richie Rich",
    "total": "9999"
}
```

⤴️ *👆 🛠️* 🔜 🛠️ 🧾, & ☝ ⏪, 📨 ⏲ 📨 `callback_url` ( *🔢 🛠️*):

```
https://www.external.org/events/invoices/2expen51ve
```

⏮️ 🎻 💪 ⚗ 🕳 💖:

```JSON
{

			},
		})
	}
	lc := Lifecycle{
		Rules: rules,
	}
	if event := lc.NoncurrentVersionsExpirationLimit(ObjectOpts{Name: "obj"}); event.RuleID != "1" || event.NoncurrentDays != 1 || event.NewerNoncurrentVersions != 1 {
		t.Fatalf("Expected (ruleID, days, lim) to be (\"1\", 1, 1) but got (%s, %d, %d)", event.RuleID, event.NoncurrentDays, event.NewerNoncurrentVersions)
	}
}

```
https://yourapi.com/invoices/?callback_url=https://www.external.org/events
```

使用如下 JSON 请求体：

```JSON
{
    "id": "2expen51ve",
    "customer": "Mr. Richie Rich",
    "total": "9999"
}
```

然后，您的 API 就会处理发票，并在某个点之后，发送回调请求至 `callback_url`（外部 API）：

```
https://www.external.org/events/invoices/2expen51ve
```

JSON 请求体包含如下内容：

```JSON
{