PlanTempusApp/Core/Telemetry/SeqTelemetryChannel.cs

using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.Channel;

namespace PlanTempus.Core.Telemetry
{
    public class SeqTelemetryChannel : InMemoryChannel, ITelemetryChannel
    {
        private readonly IMessageChannel<ITelemetry> _messageChannel;
        private readonly TelemetryClient _telemetryClient;

        public SeqTelemetryChannel(IMessageChannel<ITelemetry> messageChannel, TelemetryClient telemetryClient)
        {
            _messageChannel = messageChannel;
            _telemetryClient = telemetryClient;
        }
        public new void Send(ITelemetry telemetry)
        {

            if (telemetry.Context.GlobalProperties.TryGetValue("OmitSeqTelemetryChannel", out string value))
                if (value == "true")
                {
                    base.Send(telemetry);
                    return;
                }

            try
            {
                var writeTask = _messageChannel.Writer.WriteAsync(telemetry).AsTask();
                writeTask.ContinueWith(t =>
                {
                    if (t.Exception != null)
                    {
                        throw t.Exception;
                    }
                }, TaskContinuationOptions.OnlyOnFaulted);
            }
            catch (Exception e)
            {
                _telemetryClient.TrackException(e, new Dictionary<string, string> { { "OmitSeqTelemetryChannel", "true" } });
            }
            base.Send(telemetry);
        }
    }
}