Master Blazor's evolving render modes, hosting models, and observability features with practical projects and real-world architecture. Build confidently for production with .NET 10 and C# 14 Key Features Dedicated, side-by-side coverage of Blazor render modes without forcing them into a single project Updated for .NET 10 LTS with first-class coverage of .NET Aspire and modern observability Project structures and examples designed around real production constraints, not demos Book DescriptionWhy upgrade to the 4th edition? This edition helps you stop guessing and start choosing the right approach, every time. If you learned Blazor a year or two ago, things already feel different. New render modes. New hosting patterns. New guidance from Microsoft. What used to work still runs, but it no longer tells the whole story. You’re probably asking the same questions many Blazor developers are asking now: Should this be Server, WebAssembly, or SSR? Why does authentication feel simpler - but also different? How do .NET Aspire and Open Telemetry fit into real projects? This edition is written for developers navigating that exact shift. Blazor render modes are explored separately and clearly, removing architectural confusion. Authentication and authorization are simplified and expanded with practical, real-world guidance. New chapters introduce .NET Aspire, Open Telemetry, and modern caching strategies - reflecting how Blazor applications are being built today with .NET 10 (LTS). By the end of this book, you’ll build Blazor applications with confidence, clarity, and future-proof skills, aligned with Microsoft’s direction and ready for production.What you will learn Understand how Blazor works and when to use each render mode Build simple and advanced Blazor components with confidence Structure applications to separate concerns and support multiple hosting models Implement authentication and authorization using modern .NET patterns Improve performance with caching and rendering optimizations Use Open Telemetry to gain insight into application behavior and performance Build, run, and manage applications using .NET Aspire Deploy and maintain scalable Blazor applications in production Who this book is forThis book is for .NET web developers and software developers who want to use their existing C# skills to build interactive web applications running in the browser with Blazor WebAssembly, on the server with Blazor Server, or using a combination of both. You’ll need a basic understanding of C# and some prior exposure to .NET web development. The book will guide you through the rest.

Table of Contents:
Table of Contents

1. Hello Blazor
2. Creating Your First Blazor App
3. Exploring Render Modes
4. Uncovering Aspire
5. Managing state part 1
6. Understanding Basic Blazor Components
7. Creating Advanced Blazor Components
8. Building Forms with validation
9. Creating an API
10. Adding Authentication, and Authorization
11. Sharing code and resources between projects
12. Making JavaScript Interop
13. Managing state part 2
14. Debug the code
15. Exploring telemetry
16. Test the code
17. Deploy to production
18. Moving from, or combining an existing site
19. Going deeper into WebAssembly
20. Introducing Blazor Hybrid
21. Examining Source generators