Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By : Valerio De Sanctis
Book Image

ASP.NET Core 6 and Angular - Fifth Edition

By: Valerio De Sanctis

Overview of this book

Every full-stack ninja needs the tools to operate on front-end and back-end application development. This web app development book takes a hands-on, project-based approach to provide you with all the tools and techniques that web developers need to create, debug, and deploy efficient web applications using ASP.NET Core and Angular. The fifth edition has been updated to cover advanced topics such as Minimal APIs, Web APIs with GraphQL, real-time updates with SignalR, and new features in .NET 6 and Angular 13. You begin by building 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 (.NET 6) and Jasmine, as well as Karma for Angular. After adding authentication and authorization to your apps, you will explore progressive web applications, learning about their technical requirements, testing processes, and how to convert a standard web application to a PWA. By the end of this web development 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 (18 chapters)
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Populating the database

Now that we have a SQL database available and a DbContext that we can use to read from and write to it, we are finally ready to populate those tables with our world cities data.

To do that, we need to implement a data seeding strategy. We can do this using one of the various Entity Framework Core-supported approaches:

  • Model data seed
  • Manual migration customization
  • Custom initialization logic

These three methods are well explained in the following article, along with their very own sets of pros and cons:

Since we have to handle a relatively big Excel file, we’re going to adopt the most customizable pattern we can make use of: some custom initialization logic relying upon a dedicated .NET controller that we can execute—manually or even automatically—whenever we need to seed our database.

Implement SeedController

Our custom initialization...