Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletter Hub
Free Learning
Arrow right icon
timer SALE ENDS IN
0 Days
:
00 Hours
:
00 Minutes
:
00 Seconds
Arrow up icon
GO TO TOP
ASP.NET Core 9 Web API Cookbook

You're reading from   ASP.NET Core 9 Web API Cookbook Over 60 hands-on recipes for building and securing enterprise web APIs with REST, GraphQL, and more

Arrow left icon
Product type Paperback
Published in Apr 2025
Publisher Packt
ISBN-13 9781835880340
Length 344 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Authors (2):
Arrow left icon
Luke Avedon Luke Avedon
Author Profile Icon Luke Avedon
Luke Avedon
Garry Cabrera Garry Cabrera
Author Profile Icon Garry Cabrera
Garry Cabrera
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. Chapter 1: Practical Data Access in ASP.NET Core Web APIs 2. Chapter 2: Mastering Resource Creation and Validation FREE CHAPTER 3. Chapter 3: Securing Your Web API 4. Chapter 4: Creating Custom Middleware 5. Chapter 5: Creating Comprehensive Logging Solutions 6. Chapter 6: Real-Time Communication with SignalR 7. Chapter 7: Building Robust API Tests: a Guide to Unit and Integration Testing 8. Chapter 8: GraphQL: Designing Flexible and Efficient APIs 9. Chapter 9: Deploying and Managing Your WebAPI in the Cloud 10. Chapter 10: The Craft of Caching 11. Chapter 11: Beyond the Core 12. Index 13. Other Books You May Enjoy

Creating a real-time opinion poll in SignalR

In this recipe, we will build a real-time opinion poll system that demonstrates SignalR’s ability to broadcast data instantly to multiple connected clients. Our poll will track votes between two classic gaming consoles. Anonymous users will be able to cast their votes and see the results update in real time across all connected clients.

A key feature of this implementation is how it leverages SignalR’s connection management to track unique clients without requiring user registration. This allows us to prevent duplicate voting while maintaining anonymity.

Getting ready

We will be using SQLite in this recipe. If you would like to take a look at the data we will be collecting, please download https://sqlitebrowser.org/.

Make sure you have the latest version of the EF Core CLI tools installed:

dotnet tool update --global dotnet-ef

Or you can install it for the first time as follows:

dotnet tool install --global...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime