Filter out health check transactions

[TomRoelofsWhyellow]

Package

Sentry.AspNetCore

.NET Flavor

.NET

.NET Version

6.0.0

OS

Any (not platform specific)

SDK Version

4.4.0

Self-Hosted Sentry Version

No response

Steps to Reproduce

1. Enable inbound filter for filtering out health check transactions
2. Create a health check endpoint (e.g. /healthcheck/database)
3. Assure that the health check is unhealthy
4. Perform a health check call to the endpoint

Expected Result

According to the docs (https://docs.sentry.io/product/data-management-settings/filtering/#transactions-coming-from-health-check), the health check transaction should be filtered out.

Number of other things I've tried:

1. Add SetBeforeSendTransaction and SetBeforeSend. Tried to filter on Transaction Name/Tags.

options.SetBeforeSendTransaction((sentryTransaction, _) => { return sentryTransaction.Name.Contains("healthcheck") ? null : sentryTransaction; });

2. Add TracesSampler

options.TracesSampler = samplingContext => { return samplingContext.TransactionContext.Name.Contains("healthcheck") ? 0 : 1; };

When I check the logs, it says the events/transactions are dropped, but I'm still receiving them in Sentry.

Actual Result

The health check is not filtered out.