/// <summary>
/// Overrides <see cref="PeriodicBatchingSink.EmitBatchAsync"/> and sends the <see cref="LogEvent"/> with a <see cref="SlackClient"/> to Slack.
/// </summary>
/// <param name="events">A collection of <see cref="LogEvent"/>.</param>
/// <returns>An Awaitable Task.</returns>
protected override async Task EmitBatchAsync(IEnumerable <LogEvent> events)
{
// check activation status
if (_slackSinkActivationSwitch.SlackSinkStatus == SlackSinkActivationSwitch.SlackSinkActivationStatus.InActive)
{
return;
}
foreach (LogEvent logEvent in events)
{
// create new slack message
var msg = new SlackMessage
{
Attachments = _generateSlackMessageAttachments(logEvent, _formatProvider, _slackSinkOptions),
Blocks = _generateSlackMessageBlocks(logEvent, _formatProvider, _slackSinkOptions),
Channel = _slackSinkOptions.SlackChannels != null && _slackSinkOptions.SlackChannels.Any() ? _slackSinkOptions.SlackChannels[0] : null,
DeleteOriginal = _slackSinkOptions.SlackDeleteOriginal,
IconEmoji = _slackSinkOptions.SlackEmojiIcon,
IconUrl = _slackSinkOptions.SlackUriIcon,
LinkNames = _slackSinkOptions.SlackLinkNames,
Markdown = _slackSinkOptions.SlackMarkdown,
Parse = _slackSinkOptions.SlackParse,
ReplaceOriginal = _slackSinkOptions.SlackReplaceOriginal,
ResponseType = _slackSinkOptions.SlackResponseType,
Text = _generateSlackMessageText(logEvent, _formatProvider, _slackSinkOptions),
ThreadId = _slackSinkOptions.SlackThreadId,
Username = _slackSinkOptions.SlackUsername
};
// check for multi channel post
if (_slackSinkOptions.SlackChannels != null)
{
// multi channel post
var logMsgPosts = _slackClient.PostToChannelsAsync(msg, _slackSinkOptions.SlackChannels);
foreach (Task <bool> logMsgPost in logMsgPosts)
{
await logMsgPost;
}
}
else
{
// single channel post
await _slackClient.PostAsync(msg);
}
}
}