Azure App Service
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Unable to filter out exceptions using "ITelemetryProcessor" in Azure Web API
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Marius H Enerud
1
Reputation point
Hi,
I have a Azure Web API were I try to ignore a specific exception from being shown in Application Insight:
In order to do so, I need to inspect the exception message that is related to the exception being thrown (defined in the "ReasonPhrase"):
My problem is that the code logic for "ExceptionTelemetry" never seems to be executed.
Here is my implementation of the ITelemetryProcessor:
I need the code line marked in yellow to be hit, but it seems that I never get any "ExceptionTelemetry".
NB! When I run the code locallly, I see that other types of telemetry data is fetched (like "RequestTelemetry" etc.) So the ITelemetryProcessor seems to trigger at least, but not on my specific exception...
Any tips on what I need to do to achieve this?
Regards,
Marius H. Enerud
{count} votes
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Jaliya Udagedara 2,821 Reputation points MVP2021-12-15T07:50:37.61+00:00 Just to make sure, did you register the Filter? Is this ASP.NET or ASP.NET Core?
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Marius H Enerud 1 Reputation point
2021-12-22T07:57:20.153+00:00 The project is running on .NET Framework 4.6.1.
Yes I registered the filter via "TelemetryConfiguration":
And as I said: I see that other types of telemetry data is fetched when running the code locally.
Is the HttpResponseException not being converted to a "Exception telemetry"? -
Marius H Enerud 1 Reputation point
2021-12-22T08:39:19.79+00:00 It seems that no ExceptionTelemetry data is being created when throwing HttpResponseException (even if HttpResponseException dervies from the Exception class).
It only triggers RequestTelemetry, but I can't find the "ReasonPhrase" there, so I'm not able to filter it out...I tested throwing a normal exception and that triggered the ExceptionTelemetry as expected. But my problem is that I need to use HttpResponseException for the clients...
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