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internal/collector/handlers.go

@@ -852,6 +852,41 @@ func (c *Collector) HandleStatsServices(w http.ResponseWriter, r *http.Request)
 	_ = json.NewEncoder(w).Encode(map[string]interface{}{"services": services})
 }
 
+// HandleStatsEndpoints returns normalized HTTP traffic groups. It is useful
+// for diagnosing noisy hosts and proxy/instrumentation duplication without
+// loading raw telemetry into the browser.
+func (c *Collector) HandleStatsEndpoints(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+	if !c.statsEnabled() {
+		statsNotEnabled(w)
+		return
+	}
+	service, hours := parseStatsCommon(r)
+	host := strings.ToLower(strings.TrimSpace(r.URL.Query().Get("host")))
+	limit := parseLimit(r, 100)
+	if limit <= 0 {
+		limit = 100
+	}
+	if limit > 500 {
+		limit = 500
+	}
+	stats, err := c.statsQuerier.EndpointStats(r.Context(), host, service, hours, limit)
+	if err != nil {
+		log.Printf("failed to compute endpoint stats: %v", err)
+		http.Error(w, "failed to compute endpoint stats", http.StatusInternalServerError)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	_ = json.NewEncoder(w).Encode(map[string]interface{}{
+		"hours":     hours,
+		"host":      host,
+		"endpoints": stats,
+	})
+}
+
 // needleAddr returns the configured or default address for the Needle 3 sidecar.
 func needleAddr() string {
 	addr := os.Getenv("OTEL_NEEDLE_ADDR")