Official blog

our thoughts, knowledge and opinions

13.11.2019 / By Karolina Szewczyk

Testing for mobile apps

With the growing number of mobile devices on the market, the problem of how to keep up with the needs of users and provide them with high-quality software is also increasing. To meet these demands, we need a specific approach. That's why testing for mobile apps is an entirely different topic than web application testing.

29.10.2019 / By Hubert Arciszewski

Networking basics

Main goal in this article is to show you the OSI model and explain how data flows in a network. Then I will go through the differences between the OSI model and TCP/IP. At the end of the article, I will also mention a few protocols used in networks.

18.10.2019 / By Kamil Masłowski

Angular(JS) like it’s 2019

You must have been asleep (for a few years at least) because Angular 7.x is already here and you’re still stuck on AngularJS. Or maybe it’s just that your codebase is so damn large you can’t face wasting years of your life rewriting it all at once? Fear not! It’s not that bad. You can (and should!) upgrade to Angular 7 step by step, or you can do it while leaving your old code in place, working with the latest Angular shipping new features.

18.09.2019 / By Mateusz Sokół

Build your own Kafka in ZIO – Queues & Fibers

Queuing and messaging platforms have been gaining in popularity in recent years. They solve numerous problems based on asynchronous message passing or consumer and producer patterns. In this blog post, we're going to build a basic message broker functionality with ZIO for our internal clinic messaging system, specifically with ZIO Queues and ZIO Fibers.

12.09.2019 / By Paweł Giżka

We hAkked Tezos! …and created a Micheline Michelson translator

During the Cryptonomic NYC Hackathon we decided to create a Google-like translator between Michelson and Micheline; two formats of source files used in Tezos software development.

12.09.2019 / By Wojciech Nowakowski

We hAkked Tezos! …and created a Frontend data visualization app

We live in an era of cryptocurrencies, and there’s no escaping it. It’s already happening, and if there’s one thing that represents well what’s going to happen next, it’s blockchain. That’s why during the Cryptonomic NYC Hackathon we decided to try and visualize tezos transactions on the frontend side.

07.08.2019 / By Jakub Czuchnowski

Making ZIO, Akka and Slick play together nicely

All of us are eager to start writing real-world applications using ZIO (Scala library). But ZIO is still quite new, and its ecosystem is still incomplete. So while we wait for ZIO-HTTP and ZIO-JDBC (or whatever else comes in the future) to happen, we will have to end up integrating ZIO with other frameworks that can communicate with the outside world. In this article, I want to explore what this kind of integration might look like for two of the most popular libraries - Slick and Akka HTTP.

25.06.2019 / By Hubert Arciszewski

What is HTTP protocol? Introduction to HTTP for Testers

If you’re testing web apps then you need to know what the purpose of HTTP protocol is and how it works. Actually, in my first project I lacked this knowledge. However, since then I’ve realised how important it is and that’s the reason I want to share it with you. In this article I will […]

25.03.2019 / By Michał Mrotek

Async/await – how it works

Async/await is a brand new way of handling asynchronous calls in JavaScript. If you don’t know how it works, in this article I will be providing some examples to help you get started.

14.02.2019 / By Mariusz Nosiński

Using Akka HTTP with Sangria as GraphQL backend

Many people think that GraphQL is ‘something’ related to Graph Databases, in my opinion they’re wrong. GraphQL is to Graph DB like Javascript to Java. Are based on similar concepts, but are used for completely different things. In short: GraphQL is a query language for APIs, optimized for performance, designed and open-sourced by Facebook. In GraphQL you can ask server for connected data and you’ll get in response only what you’ve asked for. Not more. Great! Isn't it?