update

cmd/server/main.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"strings"
 
 	"git.tornberg.me/go-otel/internal/collector"
 	"git.tornberg.me/go-otel/internal/websocket"
@@ -150,10 +151,9 @@ func main() {
 
 	// WebSocket server for visualization
 	http.HandleFunc("/ws", wsServer.HandleConnections)
-	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("OTel Debug Receiver is running"))
-	})
+
+	// Serve static files with SPA fallback
+	http.Handle("/", spaHandler(http.Dir("./dist")))
 
 	log.Printf("Starting HTTP server on port 8080")
 	log.Printf("OTLP HTTP endpoints:")
@@ -345,3 +345,18 @@ func handleHistoryByType(coll *collector.Collector, dataType string) http.Handle
 		}
 	}
 }
+
+func spaHandler(root http.FileSystem) http.Handler {
+	fileServer := http.FileServer(root)
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		path := r.URL.Path
+		// Skip API, WebSocket, and OTLP endpoints
+		if !strings.HasPrefix(path, "/api") && !strings.HasPrefix(path, "/ws") && !strings.HasPrefix(path, "/v1") {
+			if _, err := root.Open(path); err != nil {
+				// File does not exist, serve index.html
+				r.URL.Path = "/"
+			}
+		}
+		fileServer.ServeHTTP(w, r)
+	})
+}