Over the past few years, I’ve been doing some deep-diving into the world of microservices. As a product developer, I’ve implemented a huge number of microservices. And everytime I need to be sure that I didn’t forget anything, so I’ve created a checklist for myself. And out of my list…

In this article I’ll give you understanding how to write Android application with effects on the face from camera in realtime. We will go through all the key points here: working with camera, finding face, finding points on the face and drawing result. Working with camera The first thing we need to do…

I’m absolutely sure you have ever scrolled photos on the screen. Sometimes it worked pretty well and fast, sometimes… required patience. Well, did you think of the implementation? How does it work? In the nutshell, it’s a very complicated process! It requires heavy converting tasks in the background and putting…

Today NoSQL databases are one of the most interesting topics. Sometimes people think that those databases are the best solution ever and could fix all their problems. When you need consistency or data isn’t very huge then you need a relational database. But when you need scalability, distributing and availability…

Communication between services is one of the critical parts of the system. A lot of factors depend on the decision: complexity of implementation, latency, throughput, etc. I’m going to tell you about technology that covers these aspects — it’s easy to implement and it gives you fast connection! Greetings, enters…

Today you can’t imagine any software without a lot of interactions. Whether it’s external calls, like browser’s requests to servers. Or internal communications between components in the system. That’s why routing traffic is becoming a very essential part of it. And thus you can’t create any new modern software system…

Nowadays, relational databases are one of the most popular solutions for storing data. If you have a small storage and simple model — you’re probably starting with RDBMS while you design the system. But while your system is growing, you’re storing more and more data. In the end you can…

Nowadays, it’s not possible to create a product by only one person. The time of one hero is already gone. It’s more productive when there’s a team on a specific product. And the most important thing here is communication within the team. The team should always understand short term and…

If you are a backend software developer, I’m pretty sure you heard the word microservice. You probably also heard the word monolith, which is used in contrast. So, when should you use microservices? I’m going to provide several reasons for it. First, let’s make a definition of the microservice. Microservices…