Interesting use cases for middleware that can simplify your architecture. — Middleware is one of the fundamental components of ASP.NET Core applications that can be used to implement various functionality. For example, middleware can be used to implement authorization, convert exceptions to responses, measure request execution time, decompress requests, compress responses, and more. But in addition to these common scenarios, there…

One simple approach to assess software developer skills. — Over the years, I’ve been doing technical interviews as an interviewer to see if a candidate is the right fit for the projects I’m working on. Assessing the technical level of candidates is not an easy task, especially given that the companies I’ve worked with usually allocate a maximum of…

Applying an Inversion of Control Principle at the Architectural Level in Microservices. — In this article, we will look at the classic trade-off between tight coupling and redundancy using the example of custom NuGet packages that developers often create in microservice multi-repository projects. Tight Coupling between Packages During the development of a microservices project, developers can create many custom NuGet packages with the aim of code reuse…

What makes a senior software developer valuable and indispensable on a project? — Strong senior developers mastering programming languages, patterns and frameworks or even quoting Donald Knuth, Martin Fowler and other gurus. But this is not enough. A valuable software developer should be able to reactively or proactively solve problems that a business is facing or would face. In my experience, real problem solvers…

Making a balanced choice between transient, scoped and singleton lifetimes. — When developing ASP.NET Core applications, it’s quite common exercise to register yet another application service in IoC container. Developers have three lifetimes at their disposal: transient, scoped, and singleton. There are few important considerations for choosing the right lifetime for services, which we’ll look at next.

With C# examples. — Code that a developer writes will be reused by that developer sometimes later or by other developers. Code reuse is something that is used regularly — new functionality is developed on top of existing reusable components. When you introduce new code, you have a great opportunity to try to make…

Learn by reading. — I bet that most .NET engineers have read or at least heard of fundamental books like: Clean Code: A Handbook of Agile Software Craftsmanship by Martin Robert C Agile Principles, Patterns, and Practices in C# by Micah Martin, Robert C. Martin Design Patterns: Elements of Reusable Object-Oriented Software by Erich…

Things that are heavily used in web applications today. — Certain approaches or patterns are widely used in many web applications. Here is their review: Optimistic and Pessimistic Concurrency Models In web applications users will often work with the same pieces of data simultaneously. In cases where users have a possibility to edit the same data, optimistic or pessimistic concurrency models can be implemented.

Ensuring reliable and predictable application behavior. — (Micro)services can communicate with each other by making synchronous HTTP calls (or gRPC calls):