In functional architecture functionalities get composed into workflows. Workflows are essential part of any business behavior modeling. Things get complicated when you need to build bigger systems from small components. Sometimes it is hard to find proper connectors to fit multiple functions having different inputs and outputs. There are various tools to achieve that composition […]
During the work on one of the projects I had to make connection to the SQL server to fetch data. Most of the development time I spent in F# interactive – I create some sort of scratchpad script file (with fsx extension) and run VSCode with Ionide extension. This works like a charm with all […]
Around 2011-2012 when the cloud computing was not that popular, developers from Heroku presented methodology known as Twelve-Factor App. It describes recipes for building cloud-native, scalable, deployable applications. In my opinion it is a baseline for any team building cloud-native apps. When you design applications for containers you should keep in mind that container image […]
.NET Core supports DI (dependency injection) design pattern which is technique for achieving Inversion of Control (IoC) between classes and their dependencies. The native, minimalistic implementation is known as conforming container and it is anti-pattern. You can read more about issues related with it here. There is a promise from Microsoft to make better integration […]
2020 hit hard on us and brought a lot of unexpected surprises: COVID-19 and burden on healthcare system, hard times for private business, especially for small-to-medium companies, restrictions, lockdowns and much more… On the other hand, a lot of companies and individuals changed the way how they work: in short terms remote work become as […]
A son asked his father (a programmer) why the sun rises in the east, and sets in the west. His response? It works, don’t touch! Fisrt rule of programming How often you see software systems where adding new, relatively simple features takes ages, where it is hard to find the core logic or in which […]
F# is very exciting and fun language to learn. It contains pipe and composition operators which allows you to write less code with better conciseness. In addition to familiar prefix and postfix operators it also comes with the “infix” operator. The beauty of it is that you can define your own infix operators and succinctly […]
Let’s revisit definition of the pattern matching from the Wiki: In computer science, pattern matching is the act of checking a given sequence of tokens for the presence of the constituents of some pattern. In contrast to pattern recognition, the match usually has to be exact: “either it will or will not be a match.” The patterns generally have the form of […]
I often use LINQ in my code. Well, put it in another way: I can’t live without using LINQ in my daily work. One of the my favorite methods is Aggregate. Applying it wisely could save you from having explicit loops, naturally chain into other LINQ methods and at the same time keep your code […]
How often do you start a new project with latest and greatest version of .NET Core and C# to try some new fancy language features or perhaps creating a new solution for implementing your ideas? It happens to me a lot. I find myself creating a pet projects over and over again. Sometimes, project growth […]
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