To exclude a specific HTTP request from appearing in the diagram, add the test-tracking-ignore header:

var request = new HttpRequestMessage(HttpMethod.Get, "/health");
request.Headers.Add("test-tracking-ignore", "true");
await client.SendAsync(request);

Any request carrying this header will still be sent normally but will be filtered out of the diagram generation pipeline.

When TestTrackingMessageHandler sees the test-tracking-ignore header, it sets TrackingIgnore = true on the RequestResponseLog entry. The diagram generator then filters out any logs with TrackingIgnore = true.

The header is defined as a constant: TestTrackingHttpHeaders.Ignore ("test-tracking-ignore").

To hide specific HTTP headers from appearing in diagram notes (e.g. authorization tokens), use the ExcludedHeaders property on ReportConfigurationOptions:

new ReportConfigurationOptions
{
    ExcludedHeaders = ["Authorization", "X-Api-Key", "X-Request-Id"]
}

These are combined with the built-in defaults (Cache-Control, Pragma). See Report Configuration.

Tracked interactions have a RequestResponseMetaType that controls how they appear in diagrams:

See Event Annotations for details on tracking non-HTTP interactions.