Programming

How to name exceptions? It’s not so obvious… 24 Apr 2018

Naming things is one of the most difficult things in our job. Naming exceptions are even more complicated because exceptions are not regular classes. In this article, I’ll tell you a bit about nami...
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Mutational tests 24 Mar 2018

When you have a very simple application it’s not so important to test every edge case but in a project, in the very complex domain, the priority of it will increase. The more high-quality the tests...
tests   mutational tests
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DDD

Entity and value object 04 Aug 2018

Knowing the basics is the key to understanding more complex concepts. After reading this post you will know what are entities and value objects and find out differences between them. When you pay ...
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Services in DDD finally explained 15 Jun 2018

I’ve noticed that there is always a challenge of understanding what services are in a context of domain-driven development and what is the difference between a service in an application, domain, an...
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Golang

Be aware of copying in Go 25 Jan 2019

Some bugs are very hard to find and to reproduce but easy to fix. To avoid them, it’s helpful to know how the tools we’re using work under the hood. From this article, you’ll learn what shallow and...
golang   channels
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Go deeper – Database connection pool 12 Dec 2018

Golang uses a connection pool to manage opened connections for us. As a result, new connections are used when no free connection left and reuses them when golang finds an idle connection. The most ...
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How to send multiple variables via channel in golang? 10 Dec 2018

Channels in golang are referenced type. It means that they are references to a place in the memory. The information can be used to achieve the goal. Firstly, let’s consider using structs as the in...
channels   golang   concurrency
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