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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Bug fixes and improvements

Let’s be honest: although we made a decent job of building up our master/detail UI pattern, and we assembled both views using the most relevant city and country fields, our app is still lacking something that our users might want to see. More specifically, the following detail is missing:

  • Our City Detail view doesn’t validate the lat and lon input values properly: For example, we are allowed to type letters instead of numbers, which utterly crashes the form
  • Our Countries view doesn’t show the number of cities that each country actually contains
  • Our Cities view doesn’t show the country name for each listed city

Let’s do our best to fix all of these issues for good.

Validating lat and lon

Let’s start with the only real bug: a form that can be broken from the front-end is something that we should always avoid, even if those input types are implicitly checked in the back-end by...