Book Image

Blazor WebAssembly by Example, 2e - Second Edition

By : Toi B. Wright
5 (1)
Book Image

Blazor WebAssembly by Example, 2e - Second Edition

5 (1)
By: Toi B. Wright

Overview of this book

Blazor WebAssembly helps developers build web applications without the need for JavaScript, plugins, or add-ons. With its continued growth in popularity, getting started with Blazor now can open doors to new career paths and exciting projects – and Blazor WebAssembly by Example will make your first steps easier. This is a project-based guide that will teach you how to build single-page web applications with Blazor, focusing heavily on the practical over the theoretical by providing detailed step-by-step instructions for each project. The author also includes a video for each project showing her following the step-by-step instructions, so readers can use them if they're unsure about any particular step. In this updated edition, you'll start by building simple standalone web applications and gradually progress to developing more advanced hosted web applications with SQL Server backends. Each project will cover a different aspect of the Blazor WebAssembly ecosystem, such as Razor components, JavaScript interop, security, event handling, debugging on the client, application state, and dependency injection. The book’s projects get more challenging as you progress, but you don’t have to complete them in order, which makes this book a valuable resource for beginners as well as those who just want to dip into specific topics. By the end of this book, you will have experience and lots of know-how on how to build a wide variety of single-page web applications with .NET, Blazor WebAssembly, and C#.
Table of Contents (15 chapters)
13
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14
Index

Understanding the difference between authentication and authorization

Authentication and authorization are the two sides of the same security coin. Authentication is the process of obtaining credentials from a user to verify the identity of the user. Authorization is the process of checking the privileges for the user to access specific resources.

Authentication always precedes authorization.

Figure 10.1: Authentication vs Authorization

The preceding image illustrates the difference between authentication and authorization. The left-hand side of the image shows a sample login screen that is used to determine who the user is. The right-hand side of the image shows the list of groups or roles that the user does or does not belong to, which is used to determine what the user can do.

Authentication

Blazor provides the RemoteAuthenticatorView component to make creating the various authentication pages easier. This component persists and controls state across authentication...