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
Other Books You May Enjoy
14
Index

Project overview

In this chapter, we will build a Blazor WebAssembly app to display a local 5-day weather forecast and then convert it into a PWA.

The web app we will build uses JavaScript's Geolocation API to determine the current latitude and longitude of the device. It uses the OpenWeather One Call API to obtain the local weather forecast and uses a variety of Razor components to display the weather forecast to the user. After we have completed the web app, we will convert it into a PWA by adding a logo, a manifest file, and a service worker. Finally, we will install, run, and uninstall the PWA.

This is a screenshot of the completed application:

Figure 6.4 – 5-Day Weather Forecast application

The build time for this project is approximately 120 minutes.