/// <summary>
/// Gets response time and status codes count (OPTIONAL) for every request.
/// </summary>
/// <param name="app"></param>
/// <param name="config"></param>
/// <returns></returns>
public static IApplicationBuilder UseCactusMetric(this IApplicationBuilder app, MetricMiddlewareConfig config = null)
{
if (config == null)
{
config = new MetricMiddlewareConfig();
}
app.UseMiddleware <MetricMiddleware>(config);
return(app);
}
public MetricMiddleware(RequestDelegate next, MetricMiddlewareConfig config)
{
_next = next;
_config = config;
ProceedRequestTimeHistogram = Metrics.CreateHistogram("server_proceed_request_time_ms",
"Time for proceeding request in milliseconds",
new HistogramConfiguration()
{
LabelNames = new[] { "method", "endpoint" },
Buckets = _config.ProceedRequestTimeBuckets
});
if (!_config.ExcludeStatusCodeMetric)
{
StatusCodeCounter = Metrics.CreateCounter("server_status_code_count", "Server status codes count",
"code", "method", "endpoint");
}
}
