public override void OnHttpRequestCompleted(HttpContext httpContext)
{
if (!_options.ShouldInstrument(httpContext.Request.Path))
{
return;
}
string?operation = httpContext.GetOperation();
if (operation is null)
{
return; // We don't care if this isn't a genuine operation
// Should we be tracking missed operations?
}
_httpRequestDurationMetric
.WithLabels(operation, httpContext.Response.StatusCode.ToString())
.Observe(httpContext.GetRequestDuration().TotalSeconds);
if (HasError(httpContext, out (ErrorType Type, string?Dependency)? error))
{
_httpErrorsTotalMetric
.WithLabels(operation, error !.Value.Type.GetStringValue(), error !.Value.Dependency ?? string.Empty)
.Inc();
}
_httpRequestsInProgressMetric
.WithLabels(operation)
.Dec();
}
public override void OnEndpointMatched(HttpContext httpContext)
{
if (!_options.ShouldInstrument(httpContext.Request.Path))
{
return;
}
string?operation = GetOperation(httpContext);
if (operation is null)
{
return;
}
httpContext.SetOperation(operation); // Avoids calculating again later
_httpRequestsInProgressMetric
.WithLabels(operation)
.Inc();
}
