The Default Value for *OrDefault Methods The Enumerable.FirstOrDefault method returns the first element of a sequence, or a default value if no element is found. In .NET 6, you can override the default value. You can override the default value also for SingleOrDefault and LastOrDefault methods. New *By Methods .NET 6 introduces the new Enumerable.By* methods. A ‘keySelector’ is provided to compare
Exception handling is one of the most critical areas in modern web application development. If exceptions are not handled properly, the whole app can be terminated, causing severe issues for users and developers. In this article, I will discuss different methods of global exception handling in .NET apps. Error handling with try-catch blocks Try-catch blocks
What is distributed locking? With loosely coupled distributed systems, several instances of a microservice might be accessing the same shared resource. For example, several instances of a microservice might attempt to write to the same database. We have two kinds of locks: Optimistic: instead of blocking a potentially invalid process, the process continues, in the
Singleton and Static classes can only have one instance available in memory, and both classes can be used to maintain the global state of an application, however, there are many differences between them. In this article, I explain what their differences are. Singleton Singleton is one of the creational patterns from “Gang of Four” (GoF), and
Context and problem In traditional architectures, the same data model is used to query and update a database. That’s simple and works well for basic CRUD operations. In more complex applications, however, this approach can become unwieldy. For example, on the read side, the application may perform many different queries, returning data transfer objects (DTOs)