Book Image

ASP.NET Core 5 and Angular - Fourth Edition

By : Valerio De Sanctis
Book Image

ASP.NET Core 5 and Angular - Fourth Edition

By: Valerio De Sanctis

Overview of this book

Learning full-stack development calls for knowledge of both front-end and back-end web development. ASP.NET Core 5 and Angular, Fourth Edition will enhance your ability to create, debug, and deploy efficient web applications using ASP.NET Core and Angular. This revised edition includes coverage of the Angular routing module, expanded discussion on the Angular CLI, and detailed instructions for deploying apps on Azure, as well as both Windows and Linux. Taking care to explain and challenge design choices made throughout the text, Valerio teaches you how to build a data model with Entity Framework Core, alongside utilizing the Entity Core Fluent API and EntityTypeConfiguration class. You’ll learn how to fetch and display data and handle user input with Angular reactive forms and front-end and back-end validators for maximum effect. Later, you will perform advanced debugging and explore the unit testing features provided by xUnit.net (.NET 5) and Jasmine, as well as Karma for Angular. After adding authentication and authorization to your apps, you will explore progressive web applications (PWAs), learning about their technical requirements, testing, and converting SWAs to PWAs. By the end of this book, you will understand how to tie together the front end and back end to build and deploy secure and robust web applications.
Table of Contents (15 chapters)
13
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14
Index

Updating the database

It's time to create a new migration and reflect the code changes to the database by taking advantage of the Code-First approach we chose in Chapter 4, Data Model with Entity Framework Core.

Here's a list of what we're going to do in this section:

  • Add the identity migration using the dotnet-ef command, just like we did in Chapter 4, Data Model with Entity Framework Core.
  • Apply the migration to the database, updating it without altering the existing data or performing a drop and recreate.
  • Seed the data using the CreateDefaultUsers() method of SeedController that we implemented earlier on.

Let's get to work.

Adding identity migration

The first thing we need to do is to add a new migration to our data model to reflect the changes that we have implemented by extending the ApplicationDbContext class.

To do that, open a command line or PowerShell prompt and go to our WorldCities project's root...