➤ Interview Questions

Top 50 ASP.NET Core MVC interview questions

You can’t miss these 50 questions if you are preparing for interviews. Last month I was preparing for the interviews and I have collated all the questions from different companies. Although there were many questions but I have picked top 50 that are asked regularly and are highly important for...

How to implement feature flag in ASP.NET Core Blazor

Follow me on Twitter, happy to take your suggestions on topics or improvements. Introduction Many third-party feature flagging services are available, or your internal team could develop its own feature flag service. For those who prefer standardization, following the OpenFeature guidelines is also an option. However, none of these solutions...

Using Coravel as a scheduler in ASP.NET Core

Scheduling one or more background tasks is almost inevitable when building robust, self-sustaining APIs with .NET. A few packages have been around for years, such as Hangfire and Quartz.NET. ASP.NET Core allows background tasks to be implemented as hosted services. However, you might need something more customizable and lightweight with...

File upload in ASP.NET Core 6 – detailed guide

In this article, let’s learn about how to perform file upload in ASP.NET Core 6. The file for upload can be of any format like image (jpg, BMP, gif, etc), text file, XML file, CSV file, PDF file, etc. We will learn how to design a web page that allows...

Coravel - Easy task scheduling for your .NET web apps

Sometimes you need to run scheduled tasks for your .NET web app. Automated report creation, status checks, routine admin tasks, that sort of thing. I spent the last few weeks migrating Practical ASP.NET to .NET 8 (static SSR). One requirement involved sending data to an external service. For this I...

As a developer working on your current project, can you answer the following question: can your system at current state handle a new client with x1000 client compared to your existing user base? Will you know that running in production system has performance issues? In this post I’ll describe how...

Create a gRPC server in .NET Core

gRPC is a powerful framework for working with Remote Procedure Calls. RPCs allow you to write code as though it will be run on a local computer, even though it may be executed on another computer. One of the key advantages of gRPC is its use of HTTP/2, which...

Advantages using React with ASP.NET Core

For individuals who work closely with application development, terms like React and ASP.NET Core are not foreign. The most popular uses of these two technologies are in application and software development. Like any other technology, these aren’t flawless, though. The combination of these two allows for the full enjoyment of...

Turbocharging ASP.NET Core applications: A deep dive into performance optimizations

Performance is paramount when developing web applications. A slow, unresponsive application results in poor user experience, losing users, and possibly business. For ASP.NET Core developers, there are many techniques and best practices to optimize application performance. Let’s explore some of these approaches in this article. Understanding performance bottlenecks When we...

Introduction With the release of .NET 8, Microsoft takes a significant stride forward, introducing the native Ahead-of-Time (AOT) compilation for ASP.NET Core. This advancement not only enhances application performance but also simplifies the development process, marking a new era in the .NET ecosystem. The emergence of native AOT in .NET...

Kestrel Web Server in ASP.NET Core

Kestrel Web Server in ASP.NET Core Application In this article, I will discuss the Kestrel Web Server in ASP.NET Core application with examples. Please read our previous article discussing the ASP.NET Core InProcess Hosting Model with examples. At the end of our previous article, we discussed that with the OutOfProcess...

Application Insights - Telemetry 1. How do I instrument (monitor/record/enabling to capture telemetry) an application? Autoinstrumentation - if you don’t have access to source code You only need to install the Application Insights SDK if: You require custom events and metrics. You require control over the flow of telemetry....

➤ Software Testing

ASP.NET Core integration test using Moq Framework

Testing coverage is the key part of any project development and Testing coverage is not only about the unit testing instead Integration Testing is extremely important to make sure entire system is unbroken & bug free with any change or subsequent enhancement. When we talk about integration testing, mocking dependencies...

This article will teach us how to retrieve the client’s IP address and location information in ASP.NET Core web development. Retrieve the Client IP from HttpContext In ASP.NET Core, you can easily get the client IP address from the HttpContext object in the Controller, making it simple to access...

Introduction and prerequisites This post is part of an ongoing series where we build a “walking skeleton” application using ASP.NET Core and Angular as well as other technologies for deployment and testing. By now, our application is a minimally functional web API that organizes and returns weather data from...

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 connect to your application simultaneously? Then a single instance...

How to implement CQRS in ASP.NET using MediatR. A guided example using CQRS with separate Read and Write models using Enity Framework Core for Commands and Dapper for Queries. When people think about CQRS they often think about complex, event-driven, distributed architectures with separate Read and Write databases. Using different...

In a situation where we need to modify our API’s structure or functionality while ensuring that existing API clients remain unaffected, the solution is versioning. We can designate our current APIs as the older version and introduce all intended changes in the next (or latest) version. This approach resolves...

Whether you have an app with just a few users or millions of users per day, like Agoda, improving the user experience by optimizing application performance is always crucial. In the case of very high-traffic websites in the cloud, this optimization can translate into significant cost savings by reducing...