Feat: add telemetry

main.go

@@ -6,6 +6,7 @@ import (
 	"gralias/crons"
 	"gralias/handlers"
 	"gralias/repos"
+	"gralias/telemetry"
 	"log/slog"
 	"net/http"
 	"os"
@@ -56,8 +57,11 @@ func getContentType(path string) string {
 
 func ListenToRequests(port string) *http.Server {
 	mux := http.NewServeMux()
+	var handler http.Handler = mux
+	handler = handlers.LogRequests(handlers.GetSession(handler))
+	handler = telemetry.OtelMiddleware(handler)
 	server := &http.Server{
-		Handler: handlers.LogRequests(handlers.GetSession(mux)),
+		Handler: handler,
 		Addr:    ":" + port,
 		// ReadTimeout:  time.Second * 5, // does this timeout conflict with sse connection?
 		WriteTimeout: 0, // sse streaming
@@ -96,6 +100,8 @@ func ListenToRequests(port string) *http.Server {
 }
 
 func main() {
+	shutdown := telemetry.InitTracer()
+	defer shutdown()
 	// Setup graceful shutdown
 	stop := make(chan os.Signal, 1)
 	signal.Notify(stop, os.Interrupt, syscall.SIGTERM)