https://vicheanath.github.io Original software notes on .NET, React, architecture, and side projects by Vichea Nath. en-us Wed, 12 Aug 2026 20:00:40 GMT https://vicheanath.github.io/post/composition-over-inheritance-dotnet/ https://vicheanath.github.io/post/composition-over-inheritance-dotnet/ Wed, 12 Aug 2026 00:00:00 GMT A realistic inheritance hierarchy that rots under new requirements, and a step-by-step refactor into composed behaviours that stay easy to change and test. .NET Architecture Refactoring https://vicheanath.github.io/post/building-reliable-aspnet-core-apis/ https://vicheanath.github.io/post/building-reliable-aspnet-core-apis/ Mon, 10 Mar 2025 00:00:00 GMT A practical guide to building ASP.NET Core APIs that stay predictable under load, handle failures well, and remain easy to change. ASP.NET Core APIs Reliability https://vicheanath.github.io/post/async-await-best-practices-dotnet/ https://vicheanath.github.io/post/async-await-best-practices-dotnet/ Sun, 09 Mar 2025 00:00:00 GMT How to use async and await in .NET without creating hidden deadlocks, thread starvation, or unnecessarily complicated code. .NET Async Performance https://vicheanath.github.io/post/ef-core-performance-checklist/ https://vicheanath.github.io/post/ef-core-performance-checklist/ Sat, 08 Mar 2025 00:00:00 GMT A practical EF Core checklist for reducing slow queries, oversized object graphs, and unnecessary database work in production systems. EF Core Performance Databases https://vicheanath.github.io/post/testing-strategy-dotnet-teams/ https://vicheanath.github.io/post/testing-strategy-dotnet-teams/ Fri, 07 Mar 2025 00:00:00 GMT How to balance unit, integration, and end-to-end tests in .NET so teams catch regressions without creating a brittle test suite. .NET Testing Team Practices https://vicheanath.github.io/post/background-jobs-dotnet-hosted-services/ https://vicheanath.github.io/post/background-jobs-dotnet-hosted-services/ Thu, 06 Mar 2025 00:00:00 GMT How to implement background processing in .NET with hosted services without turning your web app into an unreliable job runner. .NET Background Jobs Reliability https://vicheanath.github.io/post/modular-monolith-dotnet/ https://vicheanath.github.io/post/modular-monolith-dotnet/ Wed, 05 Mar 2025 00:00:00 GMT Why many .NET teams move faster with a modular monolith first, and how to structure modules so the codebase stays clean as the product grows. .NET Architecture Modular Monolith https://vicheanath.github.io/post/observability-dotnet-opentelemetry/ https://vicheanath.github.io/post/observability-dotnet-opentelemetry/ Tue, 04 Mar 2025 00:00:00 GMT How to make .NET services easier to operate with logs, metrics, and traces that explain what the system is doing under real production load. .NET Observability OpenTelemetry https://vicheanath.github.io/post/secure-aspnet-core-authentication-authorization/ https://vicheanath.github.io/post/secure-aspnet-core-authentication-authorization/ Mon, 03 Mar 2025 00:00:00 GMT A practical approach to securing ASP.NET Core APIs with clear identity boundaries, policy-based authorization, and safer defaults. ASP.NET Core Security APIs https://vicheanath.github.io/post/caching-strategies-dotnet/ https://vicheanath.github.io/post/caching-strategies-dotnet/ Sun, 02 Mar 2025 00:00:00 GMT How to use in-memory and distributed caching in .NET without serving stale data blindly or hiding deeper design problems. .NET Caching Performance https://vicheanath.github.io/post/refactoring-legacy-dotnet-systems/ https://vicheanath.github.io/post/refactoring-legacy-dotnet-systems/ Sat, 01 Mar 2025 00:00:00 GMT A pragmatic approach to improving legacy .NET systems while still shipping features, reducing risk through seams, tests, and incremental change. .NET Refactoring Legacy Code https://vicheanath.github.io/post/ddd-clean-architecture-dotnet-core/ https://vicheanath.github.io/post/ddd-clean-architecture-dotnet-core/ Thu, 20 Feb 2025 00:00:00 GMT A deep dive into DDD tactical patterns, Clean Architecture layers, and how to implement them in .NET Core with a clear dependency rule. .NET DDD Architecture https://vicheanath.github.io/post/ddd-cqrs-vertical-slice-architecture/ https://vicheanath.github.io/post/ddd-cqrs-vertical-slice-architecture/ Thu, 20 Feb 2025 00:00:00 GMT Low-context structure for features: one slice per use case, CQRS, and a thin domain. Easy for humans and AI to navigate and implement. DDD CQRS Architecture https://vicheanath.github.io/post/cqrs-dotnet-clean-architecture/ https://vicheanath.github.io/post/cqrs-dotnet-clean-architecture/ Wed, 19 Feb 2025 00:00:00 GMT A deep dive into CQRS: when to use it, how to implement commands and queries, read models, and how it fits with DDD and Clean Architecture. .NET CQRS Architecture