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

Using Azure Active Directory to Secure a Blazor WebAssembly Application

Security is important. Most applications require each user to provide their credentials before they can access all the functionality supplied by the application. Managing usernames, passwords, roles, and groups can be tedious and complicated. Using Azure Active Directory (Azure AD) makes it easy. Azure AD is an identity provider in the cloud.

The project that we create in this chapter will allow the user to view the claims provided by the token that is returned from Azure AD after the user is authenticated by Azure AD. We will be using the Microsoft Authentication Library (MSAL) to acquire JSON Web Tokens (JWTs) from Azure AD. We will be using Open ID Connect (OIDC) endpoints to authenticate users. OIDC is a simple identity layer built on the industry standard OAuth 2.0 protocol. It allows clients to verify the identity of a user based on the authentication performed by an identity provider, such as Duende...