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Kubernetes 101

Kubernetes 101

Created by Google this open-sourced system helps manage containerized applications within cluster environments. It gives developers a better way to deal with related and distributed components as well as services in infrastructure.

Apr 23, 2019
software development
Pessimistic Locking In Rails

Pessimistic Locking In Rails

The Ruby on Rails framework is powerful in many ways. One of its strong points is that Ruby on Rails is being shipped with ActiveRecord - an Object Relational Mapping system. ActiveRecord comes up with its own DSL, which lets you write Ruby code, which in turn is translated to SQL, allowing you to use database native features, including “locking”.

Gravatar for s.lach@selleo.com
Szymon Lach
Apr 15, 2019
ruby on rails
GraphQL with Ruby On Rails: Queries in Multiple Files

GraphQL with Ruby On Rails: Queries in Multiple Files

Today we are going to add specs (again, we will focus only on the happy paths) for GraphQL queries. But there is one thing about the current implementation of the queries that I don’t like. We have everything defined in one file: `app/graphql/types/query_type.rb`

Ireneusz Skrobiś
Ireneusz Skrobiś
Apr 4, 2019
ruby on rails
Testing GraphQL Mutations In Ruby On Rails With RSpec

Testing GraphQL Mutations In Ruby On Rails With RSpec

In the last article we added a few GraphQL mutations to our test application. It is time to create automated tests for each of them. But first things first, we need to set up `RSpec` in order to write better specs.

Ireneusz Skrobiś
Ireneusz Skrobiś
Mar 21, 2019
ruby on rails
GraphQL Mutations In Ruby On Rails

GraphQL Mutations In Ruby On Rails

In this article, I would like to focus on adding GraphQL mutations. We will be working on the test application we created previously in this article. It might be helpful for you to know the structure, models, and types we are using so I encourage you to take a look.

Ireneusz Skrobiś
Ireneusz Skrobiś
Mar 14, 2019
ruby on rails
SVG Icons - From Sketch to React

SVG Icons - From Sketch to React

The inlined SVG icons are currently the best way to use icons on the web. If you’re not familiar with that approach or still need convincing, check out this great article on CSS Tricks. But how should we prepare and use the inline SVG icons?

Arkadiusz Janik
Arkadiusz Janik
Mar 11, 2019
react
My Personal Growth As An Ember.js Developer

My Personal Growth As An Ember.js Developer

In 2018 Ember was updated 65 times - 1.2 releases per week. There were 66 Ember Meetups held all around the world. But what about my personal growth as a software developer? In this article, I will share with you some tricks that I have discovered and you can make use of in your daily job.

Robert Harężlak
Robert Harężlak
Mar 6, 2019
ember
How I Stay On The Cutting Edge Of Technology

How I Stay On The Cutting Edge Of Technology

For most developers, the biggest goal in their careers is to be a multi-lingual specialist and to be up to date with every possible tool or framework. After spending months of making their goal, they finally lose their battle due to burnout, because they cannot maintain the work-life balance properly.

Robert Harężlak
Robert Harężlak
Feb 26, 2019
software development
Behind The Scenes Of A Mature Ember.js Project

Behind The Scenes Of A Mature Ember.js Project

This article aims to tell the story of mature Ember.js projects, take you behind the scenes, possibly help you to deal with long-term projects with the team. As a background to the main story, let me use a classic movie from the 70s - ‘Alien’ - directed by Ridley Scott.

Dawid Pośliński
Dawid Pośliński
Feb 26, 2019
ember
How To Setup A Project With Ruby On Rails, PostgreSQL And GraphQL

How To Setup A Project With Ruby On Rails, PostgreSQL And GraphQL

GraphQL is an open source query language created by Facebook. It is a powerful tool that you can use for building your API. It is not a silver bullet but it can definitely help you solve some challenges like getting many resources in a single request.

Ireneusz Skrobiś
Ireneusz Skrobiś
Feb 13, 2019
ruby on rails
How To Preview Doc And PDF Files In Browser

How To Preview Doc And PDF Files In Browser

Are you struggling with Doc and PDF files preview in the browser? This article will show you how to go about it.

Arkadiusz Machalica
Arkadiusz Machalica
Feb 6, 2019
react
Infrastructure As A Code

Infrastructure As A Code

Managing servers and infrastructures manually is not a very complicated task, but when you start working with multiple servers, manual configuration is getting more complex and almost unachievable. This is where the notion of Infrastructure as a Code comes in.

Bartłomiej Wójtowicz
Bartłomiej Wójtowicz
Feb 5, 2019
software development
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