Function telemetryMiddleware

src/libraries/go/lib/pkg/core/httpservice.go:447–473

(serviceName string, excludedRoutes map[string]interface{})

	})
	return rrw
}

func putRRW(rrw *recordingResponseWriter) {
	rrw.writer = nil
	rrwPool.Put(rrw)
}

func telemetryMiddleware(serviceName string, excludedRoutes map[string]interface{}) mux.MiddlewareFunc {
	otelMW := otelmux.Middleware(serviceName)
	return func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
			route := mux.CurrentRoute(r)
			var spanName string
			if route != nil {
				var err error
				spanName, err = route.GetPathTemplate()
				if err != nil {
					spanName, err = route.GetPathRegexp()
					if err != nil {
						spanName = ""
					}
				}
			}

			// Check if the route is excluded if so skip the otel middleware
			if _, ok := excludedRoutes[spanName]; ok {
				next.ServeHTTP(rw, r)
			} else {
				// route is not excluded call the httpmiddleware
				otelMW(next).ServeHTTP(rw, r)