public NancyMetricsCollector(IRouteResolver routeResolver, IEnumerable <ISystemMetricCollector> collectors, NancyMetricsCollectorOptions options = null)
{
RouteResolver = routeResolver;
Options = options ?? new NancyMetricsCollectorOptions();
ErrorRequestsProcessed = Metrics.CreateCounter("server_request_error_total", "Number of unsuccessfull processed requests.", "method", "error_code");
OngoingRequests = Metrics.CreateGauge("server_request_in_progress", "Number of ongoing requests.", "method");
RequestResponseHistogram = Metrics.CreateHistogram("server_request_duration_seconds", "Histogram of request duration in seconds.",
new HistogramConfiguration()
{
LabelNames = new string[] { "method" },
Buckets = Options.Buckets
});
var registry = Metrics.DefaultRegistry;
foreach (var collector in collectors)
{
registry.AddBeforeCollectCallback(collector.UpdateMetrics);
}
}
public NancyMetricsCollector(IRouteResolver routeResolver, NancyMetricsCollectorOptions options = null, bool registerDefaultCollectors = true) :
this(routeResolver,
(registerDefaultCollectors ? new List <ISystemMetricCollector>() { new ThreadPoolCollector() } : new List <ISystemMetricCollector>()),
options)
{
}