Book Image

ASP.NET Core 2 and Angular 5

By : Valerio De Sanctis
Book Image

ASP.NET Core 2 and Angular 5

By: Valerio De Sanctis

Overview of this book

Become fluent in both frontend and backend web development by combining the impressive capabilities of ASP.NET Core 2 and Angular 5 from project setup right through the deployment phase. Full-stack web development means being able to work on both the frontend and backend portions of an application. The frontend is the part that users will see or interact with, while the backend is the underlying engine, that handles the logical flow: server configuration, data storage and retrieval, database interactions, user authentication, and more. Use the ASP.NET Core MVC framework to implement the backend with API calls and server-side routing. Learn how to put the frontend together using top-notch Angular 5 features such as two-way binding, Observables, and Dependency Injection, build the Data Model with Entity Framework Core, style the frontend with CSS/LESS for a responsive and mobile-friendly UI, handle user input with Forms and Validators, explore different authentication techniques, including the support for third-party OAuth2 providers such as Facebook, and deploy the application using Windows Server, SQL Server, and the IIS/Kestrel reverse proxy.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Enforcing authorization


Now that we can be sure that our JWT-based auth implementation is working as expected, we need to define some testable auth-based navigation patterns and access rules that will allow us to differentiate the logged-in user from the anonymous one, preventing the latter from either seeing and doing something that he shouldn't be allowed to. Needless to say, we need to handle them on the client side and also on the server side.

It's actually easy to do that, since we already have some Angular components that should be made accessible to authenticated users only and vice versa--along with the .NET Core controllers they use under the hood; let's see how we can pull off that task.

Adapting the client

Let's start by updating the main menu navigation bar.

NavMenuComponent

From the /ClientApp/app/components/navmenu/ folder, open the navmenu.component.ts file and update it in the following way:

import { Component } from '@angular/core';
import { AuthService } from '../../services...