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

Interacting with the SignalR real-time API from React

In this section, we will work on our React frontend so that we can interact with the SignalR real-time API we have just built. We will make changes to the question page so that we can subscribe to new answers for the question on the page. We will use Postman to post an answer to the question and hopefully receive the updated question in our React frontend.

Installing the SignalR client

Let's open our React frontend project in Visual Studio Code and install the SignalR client. Enter the following command in the Terminal:

> npm install @aspnet/signalr

Check the version of the @aspnet/signalr package in package.json. If it is before version 3, then run the following...