Outbox pattern is simple, yet powerful tool. Let’s see how does it work and what are the consequences of applying it. With outbox, instead of sending a message over the wire to message broker, we save a message to our microservice database as part of current business transaction. This way we achieve internal consistency inside our service. No messages will be sent if a transaction is rolled back...

Eric Evans in the book DDD: Tackling Complexity in the Heart of Software presents a model characteristic for Domain Driven Design, which consists of layers: User Interface, Application, Domain and Infrastructure.

MenuHomeAboutArchivesSubscribe Opinions, thoughts, solutions by Paweł Pindel on At the beginning, it is worth considering what asynchronous programming is and why it is better than synchronous. Asynchronous programming involves approaching the problem in a completely different way. The point is that the program code does not execute line by line, waiting each time for the end of the operation to move on. It allows us to speed up the program to a great extent, release the main t...

Reading time ~7 minutes This article is Part 4 in a 4-Part Series. Part 1 - Refactoring to Data Driven TestsPart 2 - How to get data for Data-Driven Tests?Part 3 - Tips, tricks, and good practices for Data-Driven Testing. Part 1.Part 4 - This Article This post is a continuation of a previous tips, tricks, and good practices for Data-Driven Testing entry. This one with more code. I will be converting this series into an ebook with additional source code and examples. If you want to get it, please su...

W 49. odcinku poruszamy temat, o którym było ostatnio głośno. Mityczny 10x developer/engineer to temat który dzieli środowisko developerskie tak dobrze jak politycy Polaków. W odcinku przechodzimy przez wszystkie 11 punktów manifestu i omawiamy je zastanawiając się czy mają one sens czy nie.

Reading time ~7 minutes This article is Part 3 in a 3-Part Series. Part 1 - Refactoring to Data Driven TestsPart 2 - How to get data for Data-Driven Tests?Part 3 - This Article As promised here and here, this will be tips, tricks, and good practices for data-driven tests. If You want to know more about data-driven testing see my previousposts on this topic. Here we go. I will be converting this series into an ebook with additional source code and examples. If You want to get it please subscribe:G...

Many people at the beginning of the project ask themselves - what architecture to choose? Would you not even think about it when starting your first serious project? I bet you would. In this post, I will try to answer this question from my perspective because I have always thought about it myself… until one day.

O tym, jak dodać analizatory do projektu, pisałam całkiem niedawno. Dzisiaj czas na opisanie, jak takie analizatory skonfigurować. Wystarczy jeden prosty plik ruleset.

Reading time ~7 minutes I am not a big fan of writing tests. I like having them, but I find writing them to be boring. That said, retesting manually is even more annoying, so I write tests. The thought that there has to be a better way, never passed. I tried a few approaches. After some experimentation, I think I have the answer - DDT (Data Driven Testing) Before we dig into what Data Driven Tests are, let’s look at some standard, non-DDT tests.What we will be testing? There is a fragile line for cod...

In this article we are going to show you how you can combine SignalR and RabbitMQ to build real time server-client communication. We will extend our insurance sales portal with chat service. This chat will let insurance agents communicate with each other. We also will use this chat service to send users information about certain business events like new product availability, successful sale or insurance product or tariff changes.