Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By : Valerio De Sanctis
Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By: Valerio De Sanctis

Overview of this book

Every full-stack ninja needs the tools to operate on front-end and back-end application development. This web app development book takes a hands-on, project-based approach to provide you with all the tools and techniques that web developers need to create, debug, and deploy efficient web applications using ASP.NET Core and Angular. The fifth edition has been updated to cover advanced topics such as Minimal APIs, Web APIs with GraphQL, real-time updates with SignalR, and new features in .NET 6 and Angular 13. You begin by building a data model with Entity Framework Core, alongside utilizing the Entity Core Fluent API and EntityTypeConfiguration class. You'll learn how to fetch and display data and handle user input with Angular reactive forms and front-end and back-end validators for maximum effect. Later, you will perform advanced debugging and explore the unit testing features provided by (.NET 6) and Jasmine, as well as Karma for Angular. After adding authentication and authorization to your apps, you will explore progressive web applications, learning about their technical requirements, testing processes, and how to convert a standard web application to a PWA. By the end of this web development book, you will understand how to tie together the front-end and back-end to build and deploy secure and robust web applications.
Table of Contents (18 chapters)
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This chapter was entirely dedicated to SignalR, an open-source library developed by Microsoft and shipped with ASP.NET Core that allows us to add real-time functionality to web applications.

We spent the first part of the chapter understanding the concepts of Real-Time HTTP and Server-side Push, reviewing the various techniques and workarounds used since the beginning of the Internet to achieve or emulate such capabilities; then we quickly reviewed the main features of SignalR, which leverages most of these techniques to provide an abstraction layer accessible through a proprietary API and built around concepts such as hubs, protocols, connections, users, and groups.

Right after that, we put our hand to code and implemented SignalR in ASP.NET Core and Angular, as well as setting up and configuring the required Microsoft NuGet and npm packages. More specifically, we started with implementing a server-initiated broadcast event that could be issued by executing a dedicated...