How do you handle real-time updates in Blazor apps with SignalR?

[biztechcs]

For large-scale Blazor web development apps, the best practice is to structure them by feature rather than by layers, so each module contains its own components, services, and models. Keep concerns separated: the UI should focus only on display, while business logic sits in services and data handling remains in infrastructure. A shared library of components ensures consistency across the application and avoids duplication. State management should be predictable, isolating fast-changing data within components and using patterns like containers or Fluxor for global state. Performance is maintained by reducing unnecessary re-renders, using virtualization for large data sets, and lazy-loading heavy features. Resilience comes from adding error boundaries, structured logging, and retry policies for external dependencies. Ultimately, a modular, scalable, and testable design with proper CI/CD ensures the app can grow without becoming unmanageable.