testable

ingestion/ingest/internal/middleware/middleware.go

@@ -191,3 +191,11 @@ func (s *statusRecorder) WriteHeader(code int) {
 	s.ResponseWriter.WriteHeader(code)
 }
 
+// Flush delegates so SSE handlers can still call w.(http.Flusher).Flush()
+// after the Logger middleware wraps the original ResponseWriter.
+func (s *statusRecorder) Flush() {
+	if f, ok := s.ResponseWriter.(http.Flusher); ok {
+		f.Flush()
+	}
+}
+