In a large-scale application, maintaining a well-structured codebase is crucial for scalability, maintainability, and long-term success. Over time, as teams grow and features evolve, the violations of architectural rules can creep in, le...
Saved by: Huy Vũ
In today’s SQL newsletter from SQL-Server-Performance.com I was horrified to find the following tip: When you specify a server in an ADO.NET connection string, use the server’s IP address, not the server’s DNS name. By using an IP addres...
Saved by: Huy Vũ
In ASP.NET Core, middleware is more than just a feature — it’s the foundation of how every request and response flows through your application. If you’re building web APIs or full-stack applications with ASP.NET Core, understanding middl...
Saved by: Huy Vũ
Logging is the first thing I set up in every new ASP.NET Core project - before the database, before authentication, before anything else. Without structured logging, you are flying blind in production. Debugging turns into grepping throu...
Saved by: Huy Vũ
I wrote custom IDistributedCache extension methods - GetOrSetAsync, TryGetValue, SetAsync with generics - for every project that needed Redis caching. Dozens of lines of boilerplate that I copied from project to project. HybridCache made...
Saved by: Huy Vũ
Minimal APIs are the recommended approach for building HTTP APIs in ASP.NET Core. Introduced in .NET 6 and significantly enhanced through each release, Minimal APIs in .NET 10 have matured into a production-ready framework with built-in ...
Saved by: Huy Vũ
1 Clean Code to Clean Architecture: Refactoring a Fat Controller into Vertical Slices in ASP.NET Core Most teams do not decide to build a fat controller. They arrive there one deadline at a time. A controller starts as a thin HTTP entry ...
Saved by: Huy Vũ
1 - What is HttpClient? HttpClient is the class provided by C# to make calls using the HTTP protocol. In the workplace, we use HttpClient every time we need to fetch or send information to an API. Since it works through HTTP, the result ...
Saved by: Huy Vũ
4700 times faster than SQLite and achieves zero allocation per query. Also the DB size is small. When SQLite is 3560kb then MasterMemory is only 222kb. Source Generator automatically generates a typed database structure from schemas (cla...
Saved by: Huy Vũ
When working with HttpClient in ASP.NET Core, developers often fall into common traps that can lead to poor performance, resource exhaustion, and unreliable applications. These aren't just theoretical problems—they're the kind of issues ...
Saved by: Huy Vũ
SQL SERVER CDC GUIDE What is SQL Server CDC?How SQL Server CDC WorksHow to Enable CDC on a SQL Server DatabaseCDC vs. Change Tracking in SQL ServerNative SQL Server CDC vs. Third-Party CDC ToolsCore Use Cases for CDCCDC for Azure SQL Dat...
Saved by: Huy Vũ
NULL handling is one of the trickier aspects of data modeling and data manipulation with SQL. Let’s start with the fact that an attempt to explain exactly what a NULL is is not trivial in and of itself. Even among people who do have a go...
Saved by: Huy Vũ
This article is the second in a series on NULL complexities. Last month I introduced the NULL as SQL’s marker for any kind of missing value. I explained that SQL doesn’t provide you with the ability to distinguish between missing and app...
Saved by: Huy Vũ
This article is the third installment in a series on NULL complexities. In Part 1 I covered the meaning of the NULL marker and how it behaves in comparisons. In Part 2 I described the NULL treatment inconsistencies in different language ...
Saved by: Huy Vũ
This article is Part 4 in a series about NULL complexities. In the previous articles (Part 1, Part 2, and Part 3), I covered the meaning of the NULL as a marker for a missing value, how NULLs behave in comparisons and in other query elem...
Saved by: Huy Vũ
Microsoft recently released the first public preview of SQL Server 2022. This release has a number of T-SQL improvements. In this article I focus on windowing and NULL-related improvements. These include the new WINDOW clause and the win...
Saved by: Huy Vũ
1 The Dual Write Dilemma: Why Idempotency is Not Enough Distributed systems usually don’t fail because of obvious bugs. They fail because two things that must happen together are handled separately, and one of them quietly doesn’t happen...
ASP.NET Core request timeouts can be configured globally or per endpoint with the built-in middleware in .NET 8 and later. The middleware uses cooperative cancellation, so downstream work must observe HttpContext.RequestAborted. Sponsor ...
In this article, we will discuss Modularizing Web Applications using Modular Architecture in ASP.NET Core. We will go through Monolith Architecture’s various cons and pros and work on how to build monolith applications in a better way. L...
Most .NET teams in 2026 should not use the Repository Pattern. After shipping 50+ production .NET APIs over the past 8 years, I can count on one hand the projects where adding a custom repository layer over EF Core actually paid off. The...
In this article, We will talk about Onion Architecture In ASP.NET Core and its advantages. We will also together build a WebApi that follows a variant of Onion Architecture so that we get to see why it is important to implement such an a...
NULL handling is one of the trickier aspects of data modeling and data manipulation with SQL. Let’s start with the fact that an attempt to explain exactly what a NULL is is not trivial in and of itself. Even among people who do have a go...
