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Are you thinking about making a Udemy online course, but not sure if you should spend your time on it? Well if you are here for a short answer I say go for it! Worst thing that could happen you will learn something new and improve your writing, speaking and video editing skills. I know

The bigger your application gets – the harder it becomes to handle all possible exceptions in a same manner. Also what if one of the API’s has some other specific requirements? For example it needs to be compliant with some standard and all of its exception has to be standardised to it. Good news Spring

This post is an extension of previously published post on database migration: Database Migration Using Flyway and Spring Boot. So same local environment setup will be used. In this post we will take a look into Flyway Callback functions and how to setup them in Spring Boot. Use Case We are building an application which

In this post we will create an application capable to send messages from one region to another for data consistency. Use Case Imagen we are building large scale application which will need to run in multiple regions, for example: Europe and Africa, and we want to synchronise our User data between these regions, for example

First of all what is mocking? Mocking is creation of a replica or imitation of something. In simple language, mocking is creation of objects that simulate the behaviour of real objects. So why I would want to mock my back-end? Usually you will want to mock out your back-end services in order to run front-end

Git is most popular version control system in the world and almost every software engineer uses it on daily bases. Sure there is tons of GUIs which helps people to start using Git, but to do it properly you have to learn these 10 everyday commands. It might look complicated, but trust me it’s way

If you are a software engineer or in some way related to software. Probably you already heard term Docker. Maybe you are even wondering so what is it? Or is it something that I could actually use? Hope this post will help you to understand what Docker is and why it’s needed. Docker Officially Docker

Scaling is the process of increasing or decreasing the capacity of the system by changing the number of processes available to service requests. So, what if your system is getting slow? How to validate if RabbitMQ cluster is still handling its load? Or maybe one of your services can’t consume events fast enough? In this

RabbitMQ is messaging technology used to provide asynchronous communication and decouple processes. Also it can be called message-queueing software or queue manager. Simply said; It is a software where queues can be defined, applications may connect to the queue and transfer a message onto it. RabbitMQ Top Use Cases RabbitMQ enables your system to communicate

Burning out as a software engineer is more common than you think. Sure everyone has different coping capabilities. But in some cases it might end quite badly. For example I personally know one developer who worked really hard on his startup for months, 15 hours a day with no days off. At the end he

Learning how to code or at least trying is getting really popular these days. People are choosing to become developers for number of reasons, given that fact I decided to give you guys a hand and write up a post involving some tips for junior or pre-junior developers. Six, that in my opinion are the

After I moved to Ireland on my first day at work I was asked who I am and if I am here as a permanent employee or a contractor? I was permanent employee at the time and it was my first time I heard a term contractor. But I instantly knew that this is the

In this blog post I describe my carrier path from my first job as junior developer till the day I become top paid software contractor in Ireland. With a hope it will motivate someone to do the same. I started my software engineering career early in my college years. Even though I studied electronics engineering