semantic-conventions/docs/attributes-registry/aspnetcore.md

ASP.NET Core

• ASP.NET Core Attributes

ASP.NET Core Attributes

Attribute	Type	Description	Examples	Stability
aspnetcore.rate_limiting.result	string	Rate-limiting result, shows whether the lease was acquired or contains a rejection reason	acquired; request_canceled
aspnetcore.diagnostics.handler.type	string	Full type name of the IExceptionHandler implementation that handled the exception.	Contoso.MyHandler
aspnetcore.diagnostics.exception.result	string	ASP.NET Core exception middleware handling result	handled; unhandled
aspnetcore.rate_limiting.policy	string	Rate limiting policy name.	fixed; sliding; token
aspnetcore.request.is_unhandled	boolean	Flag indicating if request was handled by the application pipeline.	True
aspnetcore.routing.is_fallback	boolean	A value that indicates whether the matched route is a fallback route.	True
aspnetcore.routing.match_status	string	Match result - success or failure	success; failure

aspnetcore.rate_limiting.result has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
acquired	Lease was acquired
endpoint_limiter	Lease request was rejected by the endpoint limiter
global_limiter	Lease request was rejected by the global limiter
request_canceled	Lease request was canceled

aspnetcore.diagnostics.exception.result MUST be one of the following:

Value	Description	Stability
handled	Exception was handled by the exception handling middleware.
unhandled	Exception was not handled by the exception handling middleware.
skipped	Exception handling was skipped because the response had started.
aborted	Exception handling didn't run because the request was aborted.

aspnetcore.routing.match_status has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
success	Match succeeded
failure	Match failed