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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,41 @@ private void HandleFeatureFlagEvent(ActivityEvent activityEvent)

foreach (var tag in activityEvent.Tags)
{
properties[tag.Key] = tag.Value?.ToString();
// FeatureEvaluation event schema: https://github.com/microsoft/FeatureManagement/blob/main/Schema/FeatureEvaluationEvent/FeatureEvaluationEvent.v1.0.0.schema.json
if (tag.Value is VariantAssignmentReason reason)
{
switch (reason)
{
case VariantAssignmentReason.None:
properties[tag.Key] = "None";
break;
case VariantAssignmentReason.DefaultWhenDisabled:
properties[tag.Key] = "DefaultWhenDisabled";
break;
case VariantAssignmentReason.DefaultWhenEnabled:
properties[tag.Key] = "DefaultWhenEnabled";
break;
case VariantAssignmentReason.User:
properties[tag.Key] = "User";
break;
case VariantAssignmentReason.Group:
properties[tag.Key] = "Group";
break;
case VariantAssignmentReason.Percentile:
properties[tag.Key] = "Percentile";
break;
default:
throw new ArgumentOutOfRangeException(nameof(activityEvent), "The variant assignment reason is unrecognizable.");
}
}
else if (tag.Value is bool val)
{
properties[tag.Key] = val ? "True" : "False";
}
else
{
properties[tag.Key] = tag.Value?.ToString();
}
}

_telemetryClient.TrackEvent("FeatureEvaluation", properties);
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1 change: 1 addition & 0 deletions src/Microsoft.FeatureManagement/FeatureManager.cs
Original file line number Diff line number Diff line change
Expand Up @@ -380,6 +380,7 @@ private void AddEvaluationActivityEvent(EvaluationEvent evaluationEvent)
Debug.Assert(evaluationEvent != null);
Debug.Assert(evaluationEvent.FeatureDefinition != null);

// FeatureEvaluation event schema: https://github.com/microsoft/FeatureManagement/blob/main/Schema/FeatureEvaluationEvent/FeatureEvaluationEvent.v1.0.0.schema.json
var tags = new ActivityTagsCollection()
{
{ "FeatureName", evaluationEvent.FeatureDefinition.Name },
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