Welcome to my blog. I'm Duy Hieu, Senior Software Engineer at Integro Lending (Singapore). I created this blog to share my stories.
Whenever I need to implement a new feature, I typically start by researching available solutions on Google. Then I will experiment with one or more solutions to select the best one. However, after several months, I might forget how to implement that ...
If you still think Java is slow or overly verbose, Java 21 (released September 2023) might just change your mind. It’s easily one of the most exciting LTS releases we’ve had in years, bringing feature
1. Sạch Phải công nhận là Sing sạch, đi đâu cũng thấy có người đang quét dọn, tỉa cành, gom rác, cắt cỏ,… Chi phí để duy trì môi trường cảnh quan chắc cũng không hề nhỏ. 2. Giao thông công cộng Bên này chủ yếu đi bằng tàu điện (MRT) và xe bus, chi ph...
In the previous article, I covered the basic concepts and introduced a 5-step process for applying DDD in practice. Today, I will bring you a bigger challenge. In this article, we will work through an
I. Why DDD matters? A Bigger Picture Over the years, as business needs have grown increasingly complex, our application systems have evolved - from monoliths to SOA, and now to microservices. This evolution demands a rational approach to component de...
Behind every robust software system lies a suite of well-structured unit tests. But what defines a great unit test? In this article, we’ll examine its anatomy and best practices to ensure your tests are both reliable and effective. I. A Bigger Pictur...
This is a nice feedback from my Singaporean Scrum Master for 2024. According to Vietnamese beliefs, 2024 marked the final year of a challenging three-year period (Tam Tai) for those born in 1996, a time filled with uncertainties and difficulties. Al...
If your software has been running for over 10 years on an outdated framework or database, and you're looking to upgrade to a modern solution but still want to keep the core business code, this is when the significance of a well-designed architecture ...
In the last post, we walked through the basic concept, data structures, and supported query types of database indexes. Today, I will continue to share strategies for good indexes and high query performance. Please bear in mind that you must practice ...
