# Module okhttp-sse

## События, отправляемые сервером (SSE) { #server-sent-events-sse }

## Події, надіслані сервером (SSE) { #server-sent-events-sse }

    return NANOSECONDS.toMillis(stopwatch.instant - startTime);
  }

  private void assertEvents(String... events) {
    assertThat(stopwatch.readEventsAndClear()).isEqualTo(Arrays.toString(events));
  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.

    return NANOSECONDS.toMillis(stopwatch.instant - startTime);
  }

  private void assertEvents(String... events) {
    assertThat(stopwatch.readEventsAndClear()).isEqualTo(Arrays.toString(events));
  }

  /**
   * The stopwatch gathers events and presents them as strings. R0.6 means a delay of 0.6 seconds
   * caused by the (R)ateLimiter U1.0 means the (U)ser caused the stopwatch to sleep for a second.

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

с телом JSON:

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

то *ваш API* обработает счёт и, в какой-то момент позже, отправит запрос обратного вызова на `callback_url` (*внешний API*):

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

{* ../../docs_src/stream_json_lines/tutorial001_py310.py ln[33:36] hl[34] *}

## 伺服器推播事件（SSE） { #server-sent-events-sse }

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

avec un corps JSON :

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

alors *votre API* traitera la facture et, à un moment ultérieur, enverra une requête de callback à `callback_url` (l’*API externe*) :

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

```
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
{

import org.apache.logging.log4j.core.impl.Log4jLogEvent;

/**
 * Log4j rewrite policy that converts ERROR level log events to WARN level for specified loggers.
 * This policy is useful for downgrading the severity of log events from certain loggers
 * to prevent them from being treated as critical errors.
 */