Background story: — Imagine that you have multiple servers that try to access and manipulate some data in some time interval (like 1 second or faster). The data that servers try to manipulate can be accessed only by one process simultaneously. …

Our modules sometimes have to talk with each other. This article will demonstrate two ways of synchronous communication between modules using direct references and RESTFull style. Synchronous communication is a real-time communication, means that we have to wait for a response until going further.

In ModularMonolith we will implement Authentication and Authorization using the JSON Web Token and Asp Core Identity. Before we start a little theory: Authentication —It is about confirming your ID. If you go to the bank, you have to show your id card to prove that you are you — the same will be in our…

Let’s answer a question about how easy and fast you can set up your own Azure CI/CD pipeline. Why even bother to create azure pipelines? Saving a lot of time as it can automate the whole process from pushing code to branch until release it to release server. Making applications more resilient to bugs by catching them…

Global Exception Handling is the next feature that we will implement in our Modular application. It will allow us to handle all unpredicted and predicted exceptions in our system and deal with them — log them and return a user-friendly message to a client. Architecture Let’s establish some requirements. We would…

In a perfect world, in IT systems there is no place for bugs and maintenance. As developers, we prefer to deliver new stuff instead of maintaining old code and fixing bugs. But in most software systems, we will have to maintain something, fix some issue or change currently implemented logic…

As Software Developers we often focus most of our attention on the technical aspect of our work. Especially since we are engineers! But what if I told you that there is a second parallel world out there? The world of people, business, communication and cooperation! One of the biggest mistakes…

In part one we prepared an MVP version of a simple app in a modular-monolith way. Having a skeleton allow us to implement further improvements. In this article, we will try to implement an OutBox patter that will handle a message delivery for us, and what is more important —…