Получите InputStream и JSON в ответе RestTemplate с помощью postForObject

Поскольку вы используете C #, я думаю, вы должны использовать Windows API для подписки на определенные события Windows. Вы можете сделать это, используя класс EventLogWatcher или EventLog. Вы можете найти пример создания подписки на журнал событий Windows с помощью EventLog на MSDN .

Если вы предпочитаете EventLogWatcher, обратитесь к его ограниченной документации . И вот мой пример:

public static void subscribe()
{
    EventLogWatcher watcher = null;
    try
    {
        EventLogQuery subscriptionQuery = new EventLogQuery(
            "Security", PathType.LogName, "*[System/EventID=4624]");

        watcher = new EventLogWatcher(subscriptionQuery);

        // Make the watcher listen to the EventRecordWritten
        // events.  When this event happens, the callback method
        // (EventLogEventRead) is called.
        watcher.EventRecordWritten +=
            new EventHandler(
                EventLogEventRead);

        // Activate the subscription
        watcher.Enabled = true;

        for (int i = 0; i < 5; i++)
        {
            // Wait for events to occur. 
            System.Threading.Thread.Sleep(10000);
        }
    }
    catch (EventLogReadingException e)
    {
        Log("Error reading the log: {0}", e.Message);
    }
    finally
    {
        // Stop listening to events
        watcher.Enabled = false;

        if (watcher != null)
        {
            watcher.Dispose();
        }
    }
    Console.ReadKey();
}

// Callback method that gets executed when an event is
// reported to the subscription.
public static void EventLogEventRead(object obj,
    EventRecordWrittenEventArgs arg)
{
    // Make sure there was no error reading the event.
    if (arg.EventRecord != null)
    {
        //////
        // This section creates a list of XPath reference strings to select
        // the properties that we want to display
        // In this example, we will extract the User, TimeCreated, EventID and EventRecordID
        //////
        // Array of strings containing XPath references
        String[] xPathRefs = new String[9];
        xPathRefs[0] = "Event/System/TimeCreated/@SystemTime";
        xPathRefs[1] = "Event/System/Computer";
        xPathRefs[2] = "Event/EventData/Data[@Name=\"TargetUserName\"]";
        xPathRefs[3] = "Event/EventData/Data[@Name=\"TargetDomainName\"]";
        // Place those strings in an IEnumberable object
        IEnumerable xPathEnum = xPathRefs;
        // Create the property selection context using the XPath reference
        EventLogPropertySelector logPropertyContext = new EventLogPropertySelector(xPathEnum);

        IList