/// <summary>
/// Sends an server sent data event into the stream
/// </summary>
/// <param name="text">String containing the event data to send.</param>
/// <param name="response">HttpRepsonse representing the response stream.</param>
/// <returns>Task to be used to sync execution flow.</returns>
internal static async Task WriteSseEventAsync(this HttpResponse response, string text)
{
await response.WriteSseEventFieldAsync(Constants.SSE_DATA_FIELD, text);
await response.WriteSseEventBoundaryAsync();
await response.Body.FlushAsync();
}
/// <summary>
/// Sends an event into the stream configuring the reconnedtion interval.
/// </summary>
/// <param name="reconnectInterval">Integer containing the reconnect interval in seconds.</param>
/// <param name="response">HttpRepsonse representing the response stream.</param>
/// <returns>Task to be used to sync execution flow.</returns>
internal static async Task WriteSseRetryAsync(this HttpResponse response, uint reconnectInterval)
{
await response.WriteSseEventFieldAsync(Constants.SSE_RETRY_FIELD, reconnectInterval.ToString(CultureInfo.InvariantCulture));
await response.WriteSseEventBoundaryAsync();
await response.Body.FlushAsync();
}
/// <summary>
/// Sends an server sent data event into the stream
/// </summary>
/// <param name="serverSentEvent">ServerSentEvent object representing the payload.</param>
/// <param name="response">HttpRepsonse representing the response stream.</param>
/// <returns>Task to be used to sync execution flow.</returns>
internal static async Task WriteSseEventAsync(this HttpResponse response, ServerSentEvent serverSentEvent)
{
if (!String.IsNullOrWhiteSpace(serverSentEvent.Id))
{
await response.WriteSseEventFieldAsync(Constants.SSE_ID_FIELD, serverSentEvent.Id);
}
if (!String.IsNullOrWhiteSpace(serverSentEvent.Type))
{
await response.WriteSseEventFieldAsync(Constants.SSE_EVENT_FIELD, serverSentEvent.Type);
}
if (serverSentEvent.Data != null)
{
foreach (string data in serverSentEvent.Data)
{
await response.WriteSseEventFieldAsync(Constants.SSE_DATA_FIELD, data);
}
}
await response.WriteSseEventBoundaryAsync();
await response.Body.FlushAsync();
}
