Microsoft.AspNet.TelemetryCorrelation

Extensions of Activity class

Http header name to carry the Request Id: https://github.com/dotnet/corefx/blob/master/src/System.Diagnostics.DiagnosticSource/src/HttpCorrelationProtocol.md.

Http header name to carry the traceparent: https://www.w3.org/TR/trace-context/.

Http header name to carry the tracestate: https://www.w3.org/TR/trace-context/.

Http header name to carry the correlation context.

Maximum length of Correlation-Context header value.

Reads Request-Id and Correlation-Context headers and sets ParentId and Baggage on Activity.

Instance of activity that has not been started yet. Request headers collection. true if request was parsed successfully, false - otherwise.

Reads Request-Id and Correlation-Context headers and sets ParentId and Baggage on Activity.

Instance of activity that has not been started yet. Request headers collection. true if request was parsed successfully, false - otherwise.

Activity helper class

Listener name.

Activity name for http request.

Event name for the activity start event.

Key to store the activity in HttpContext.

Stops the activity and notifies listeners about it.

HttpContext.Items.

Creates root (first level) activity that describes incoming request.

Current HttpContext. Determines if headers should be parsed get correlation ids. New root activity.

It's possible that a request is executed in both native threads and managed threads, in such case Activity.Current will be lost during native thread and managed thread switch. This method is intended to restore the current activity in order to correlate the child activities with the root activity of the request.

HttpContext.Items dictionary.

ETW EventSource tracing class.

Instance of the PlatformEventSource class.

Parsed succesfully.

Was not parsed.

Invalid format.

Http Module sets ambient state using Activity API from DiagnosticsSource package.

Gets or sets a value indicating whether TelemetryCorrelationHttpModule should parse headers to get correlation ids.

Restores Activity before each pipeline step if it was lost.

HttpContext instance. Step to be executed.