Book Image

ASP.NET Core 3 and React

By : Carl Rippon
Book Image

ASP.NET Core 3 and React

By: Carl Rippon

Overview of this book

Microsoft's ASP.NET Core is a robust and high-performing cross-platform web API framework, and Facebook's React uses declarative JavaScript to drive a rich, interactive user experience on the client-side web. Together, they can be used to build full stack apps with enhanced security and scalability at each layer. This book will start by taking you through React and TypeScript components to build an intuitive single-page application. You’ll understand how to design scalable REST APIs that can integrate with a React-based frontend. You’ll get to grips with the latest features, popular patterns, and tools available in the React ecosystem, including function-based components, React Router, and Redux. The book shows how you can use TypeScript along with React to make the frontend robust and maintainable. You’ll then cover important .NET Core features such as API controllers, attribute routing, and model binding to help you build a sturdy backend. Additionally, you’ll explore API security with ASP.NET Core identity and authorization policies, and write reliable unit tests using both .NET Core and React before you deploy your app to the Azure cloud. By the end of the book, you’ll have gained all the knowledge you need to enhance your C# and JavaScript skills and build full stack, production-ready applications with ASP.NET Core and React.
Table of Contents (22 chapters)
Free Chapter
1
Section 1: Getting Started
4
Section 2: Building a Frontend with React and TypeScript
9
Section 3: Building an ASP.NET Core Backend
16
Section 4: Moving into Production
20
Assessments

Creating a Real-Time API with SignalR

12In this chapter, we are going to continue to develop our Q&A app. Wouldn't it be great if, when a user was on the question page, any new answers were automatically added to the page without the user having to manually refresh the page? Well, this is exactly what we are going to do in this chapter.

We are going to use a technology called SignalR to implement this feature by creating a real-time API. We'll start this chapter by understanding what SignalR is, how it differs from a REST API, and the benefit it brings. Then, we'll add a real-time API to our ASP.NET backend, thereby creating a SignalR hub. Toward the end of this chapter, we'll interact with the SignalR real-time API from our frontend React app.

In this chapter, we'll cover the following topics:

  • Understanding the benefits of SignalR
  • Creating a SignalR...