diff --git a/api/apihttp/apihttp.go b/api/apihttp/apihttp.go
index 616892fa3..d7637778e 100644
--- a/api/apihttp/apihttp.go
+++ b/api/apihttp/apihttp.go
@@ -56,6 +56,9 @@ func HealthCheckHandler(w http.ResponseWriter, r *http.Request) {
 	timer2 := prometheus.NewTimer(prometheus.ObserverFunc(metrics.FuncDuration.Set))
 	defer timer2.ObserveDuration()
 
+	timer3 := prometheus.NewTimer(metrics.RequestSummary)
+	defer timer3.ObserveDuration()
+
 	// Do something here that takes time.
 	time.Sleep(time.Duration(rand.NormFloat64()*10000+50000) * time.Microsecond)
 
diff --git a/metrics/metrics.go b/metrics/metrics.go
index 406b254e0..786b23ec9 100644
--- a/metrics/metrics.go
+++ b/metrics/metrics.go
@@ -184,6 +184,13 @@ var (
 		},
 	)
 
+	RequestSummary = prometheus.NewSummary(
+		prometheus.SummaryOpts{
+			Name: "example_function_durations_seconds",
+			Help: "example function latency distributions.",
+		},
+	)
+
 	RequestDuration = prometheus.NewHistogram(
 		prometheus.HistogramOpts{
 			Name:    "example_request_duration_seconds",
@@ -220,6 +227,7 @@ var (
 		Publisher_batches_process_seconds,
 
 		FuncDuration,
+		RequestSummary,
 		RequestDuration,
 	}
 )