Improve tracing

server/server.go

@@ -72,7 +72,9 @@ func NewServer(config *Config) (*UserServer, error) {
 		Username: "admin",
 		Role:     "admin",
 	}
-	password := uuid.Must(uuid.NewRandom()).String()
+	// TODO: Use random pw
+	// password := uuid.Must(uuid.NewRandom()).String()
+	password := "admin"
 	_ = u.SetPassword(password)
 	_ = srv.store.AddUser(u)
 
@@ -297,11 +299,15 @@ func (s *UserServer) SetPasswordHandler(w http.ResponseWriter, r *http.Request)
 }
 
 func (s *UserServer) VerifyHandler(w http.ResponseWriter, r *http.Request) {
+	_, span := otel.GetTracerProvider().Tracer("").Start(r.Context(), "Verify password")
+	defer span.End()
+
 	decoder := json.NewDecoder(r.Body)
 	defer r.Body.Close()
 
 	var request users.VerifyRequest
 
+	span.AddEvent("Start decoding request")
 	if err := decoder.Decode(&request); err != nil {
 		WriteError(w, users.ErrorResponse{
 			Status:  http.StatusBadRequest,
@@ -319,6 +325,7 @@ func (s *UserServer) VerifyHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	span.AddEvent("Fetch user")
 	u, err := s.store.GetUser(id)
 	if err != nil {
 		msg := fmt.Sprintf("Server error: %s", err)
@@ -337,6 +344,7 @@ func (s *UserServer) VerifyHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	span.AddEvent("Verify password")
 	err = u.ComparePassword(request.Password)
 	if err != nil {
 		WriteError(w, users.ErrorResponse{
@@ -345,5 +353,6 @@ func (s *UserServer) VerifyHandler(w http.ResponseWriter, r *http.Request) {
 		})
 		return
 	}
+	span.AddEvent("Write response")
 	w.WriteHeader(http.StatusOK)
 }