Clustering is an important functionality in the Internet of Things (IoT). It allows multiple devices to act as one and coordinate the work between themselves. For example, you may have IoT devices that are making real-time audio announcements at the … Continue reading Coordinating IoT cluster with SignalR

This article is a modified introduction to the book The easiest way to learn design patterns. The book is available in digital format at LeanPub and in either Kindle-specific format or in print from Amazon. Design patterns are something that … Continue reading Why every programmer needs to know design patterns (and how to learn them easily)

You can become a programmer without a formal computer science degree. Around 30% of software developers are self-taught. But you would probably want to know which language to learn first. After all, there are many of them out there. Well, … Continue reading What programming language to learn first – the case against C++

Any major software development framework has in-build localization mechanism. This will allow any app built with it to be able to easily change the language and other culture-specific settings depending on the users’ preferences. You may think that this doesn’t … Continue reading Always make your apps localizable from the start

Historically, .NET Framework was a Windows-only software development framework. In fact, many developers who don’t regularly work with it still believe that .NET and its languages, such as C#, are only available on Windows. It all changed in 2016 when … Continue reading Differences between .NET, .NET Core, and mono

Microsoft has spent a lot of time and effort developing its main functional language, F#. Over time, it has been given many cutting-edge features and tooling, far better than anything available in any other language on the .NET platform. This has … Continue reading Why you should care about functional programming

Test-driven development (TDD) is all the hype these days, especially if you frequent LinkedIn and various software development community forums. It’s almost like a religion these days. Many TDD evangelists will keep saying that it’s the best thing since sliced … Continue reading Why TDD is severely overhyped (and why you should still try it)

.NET developers who are new to AWS Lambda functions often struggle to figure out how to test them locally. The documentation is somewhat sparse or it proposes excessively complicated ways of doing this. For example, there are articles and YouTube … Continue reading The easiest way to run and debug .NET AWS Lambda locally

In your software development career, you will have to spend a lot of time finding bugs in the code and figuring out why it doesn’t do the thing it’s supposed to do. This is what the process of debugging is … Continue reading The art of scientific debugging

ASP.NET Core is the main web application development framework in .NET, which is the core software development platform of the Microsoft stack. It comes with various application templates that would allow developers to build any kind of web application. For … Continue reading The easiest way to learn ASP.NET Core

On the most fundamental level, a web application consists of client-side code and markup, server-side code, and a database. Many small websites and small-to-medium enterprise-level browser-based applications consist of nothing other than these components. However, on its own, this basic … Continue reading How big data web applications are built

Relational Database Management Systems (RDBMS) and Structured Query Language (SQL) associated with them represent a mature technology that existed for over 30 years. However, a group of data storage technologies based on a completely different paradigm, collectively known as NoSQL, … Continue reading When NoSQL is a better choice than RDBMS and when it’s not

In the previous article, we had a look at how to scale a SignalR hub by using Redis backplane. But you can also scale your hubs by using Azure SignalR Service. And this is what we will have a look … Continue reading Scaling out a SignalR hub with Azure SignalR Service

You can run a single monolithic instance of a server application only if the number of clients accessing your application doesn’t exceed a couple of thousand. But what if you expect hundreds of thousands, or even millions, of clients to … Continue reading How to scale out a SignalR back-end by using Redis

Securing your applications is very important, especially if they are accessible via a network that you don’t have control over, such as public internet. Without security, absolutely anyone can connect to your application, including someone who is up to no … Continue reading Securing your SignalR applications with OpenID Connect and OAuth

We have already covered all the fundamental ways of using SignalR messages. We have learned how to set up clients of all supported types, how to send messages to specific clients and how to use data streams, both client-to-server and … Continue reading Advanced SignalR configuration: fine-tuning the server-side hub and all supported client types

Until this point, we have only covered the use of singular messages in SignalR. But SignalR also supports message streaming. Streaming is when, instead of sending all data at ones, you send it in chunks. Perhaps, it’s a large object … Continue reading Streaming in SignalR

SignalR hub can broadcast a message to all connected clients. But this is far from being the only way you can use SignalR. The hub allows you to send messages to individual clients. You can also group clients together and … Continue reading Sending messages to individual SignalR clients or groups of clients