How to use StartActivityTrace

[qch1866]

When I set StartActivityTrace=true in my auditScope with following code, I thought there is a new activity for each auditScope block. However the audit log "activity" shows the same trace_id and span_id for different auditScope blocks. I use Audt.NET 27.5.0 and NET8.

using (var auditScope = _auditScopeFactory.Create(new AuditScopeOptions()
{
EventType = "event1",
TargetGetter = () => order,
StartActivityTrace = true
}))
{
// my code
}

[thepirat000]

Can you provide more context?

My best guess is that you're creating an activity before the audit scope is initialized. If that's the case, you would see the same trace ID but different span IDs for each audit scope.

I ran the following test, and it behaved as expected:

ActivitySource.AddActivityListener(new ActivityListener()
{
    ShouldListenTo = f => true,
    Sample = (ref ActivityCreationOptions<ActivityContext> _) => ActivitySamplingResult.AllData
});

Audit.Core.Configuration.Setup().UseInMemoryProvider();

var auditScopeFactory = new AuditScopeFactory();

using (var scope = auditScopeFactory.Create(new AuditScopeOptions() { IncludeActivityTrace = true, StartActivityTrace = true , ExtraFields = new { test = 1 }}))
{
    Debug.WriteLine($"{scope.Event.Activity.TraceId}");
}

using (var scope = auditScopeFactory.Create(new AuditScopeOptions() { IncludeActivityTrace = true, StartActivityTrace = true, ExtraFields = new { test = 2 } }))
{
    Debug.WriteLine($"{scope.Event.Activity.TraceId}");
}

I see different trace ids for each scope.

If I first create an activity and then create the audit scopes, this is the outcome:

[qch1866]

Thank you very much for the quick reply!
It is my problem that I didn't use ActivitySource.AddActivityListener beforehand. I didn't notice the unit test StartActivityTest and ActivityTrraceTests.