Getting event id from microsoft logging extension integration

[HaydnDias]

Hi, we're using sentry with microsoft logging by catching errors and calling ILogger.LogError(...etc), but we'd like to be able to get the event id for that log to return with api's/provide to consumers for tracing and reporting, is there a simple way to get this in the same context reliably?

[bruno-garcia]

You can get the id via SentrySdk.LastEventId. This value is backed by a AsyncLocal so it should include the value of the event id you have just captured, e.g:

_logger.LogError(..);
var sentryId = SentrySdk.LastEventId;

if you don't want to couple your code with the static class SentrySdk you can take via DI IHub. More on the docs.

sentry-dotnet/src/Sentry/IHub.cs

Line 23 in ad9f5ff

SentryId LastEventId { get; }

But since you're already taking IHub via DI (or using SentrySdk), an alternative is:

var sentryId = _hub.CaptureException(ex);

[HaydnDias]

That's great, thank you!

[HaydnDias]

So I gave this a try, after an exception was logged with _logger.LogError(...);, but the result came up as 00000000000000000000000000000000, I can see that the error was logged in sentry. Any ideas?

[bruno-garcia]

Is the event captured?

Calling LogError will call Sentry's CaptureEvent:

sentry-dotnet/src/Sentry.Extensions.Logging/SentryLogger.cs

Line 102 in 41cf450

_ = _hub.CaptureEvent(@event);

Is it possible the SDK wasn't enabled? Or the Hub you got in there isn't the one bound to the SentrySdk static class?

As a test, can you check if SentrySdk.LastEventId has the value? And confirm that the event is getting to Sentry?

Also for testing, just try: _hub.CaptureException(..) instead of LogError.