💠 Union Types in C#
Union types in C# 15 / .NET 11 Preview 2 — syntax, implicit conversions, pattern matching semantics, null checking, and common traps.
Mobile Developer, Open-Source Enthusiast, Technical Writer.
I'm Petrus Nguyễn Thái Học (hoc081098), a senior Android, Flutter, and iOS developer based in Da Nang, Vietnam. I'm passionate about reactive programming, clean architecture, and building high-quality mobile apps — and I share what I learn through open-source contributions and technical writing on Medium.
A few snapshots from Hải Lăng, Quảng Trị — my hometown.
💠 Union types trong C# (bản Tiếng Việt)
Union types trong C# 15 / .NET 11 Preview 2 — bản chất, implicit conversion, union matching, null checking, và những cạm bẫy cần tránh.
Rate limiting strategies for Nginx, API Gateway, and service layers
Rate limiting không nên đặt ở một tầng duy nhất. Phân tích chiến lược rate limiting tại Nginx (edge), API Gateway (YARP), và service layer trong ASP.NET Core.
Looking at `Dp` class in Jetpack Compose
Why do @Composable functions in Jetpack Compose usually use `Dp.Unspecified` as default value? Why not use null? The optimization of Jetpack Compose under the hood.
Work Experience
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- Full-time developer & Freelance / Open Source
- Role
- Senior Mobile Developer
- Date
- Company
- GoTECQ Vietnam, Ltd.
- Role
- Flutter Developer
- Date