Flask API Quickstart Application with JSON Web Tokens, SQLAlchemy and Pytest

I created a sample Flask application that shows how to create HTTP API with authentication provided by JSON Web Tokens. It can be used to learn a bit about Flask, SQLAlchemy, JSON Web Tokens, Pytest and how it all works together. In particular, it shows how to: hash passwords using bcrypt issue and verify JWT […]

Rockets: Python-based launch page

It has been 2 years already since I first played with Python and Flask and ended up creating Rockets. At the time, I was learning the basics and wanted to create something useful. Rockets is a very simple, one file Flask application that shows a sign up form for collecting email addresses. It uses only […]

How to reference hidden elements in Vue.js

In Vue.js we can reference either Vue.js component or a standard DOM element by marking it with ref=”ourReferenceName” inside the HTML tag and later access this element easily inside the component with this.$refs.ourReferenceName. Let’s have a look at a simple component example:

<template>
  <div>
    <div ref="referencedElement"></div>
  </div>
</template>

<div>

</div>

</template>

<script>
export default {
  methods: {
    accessElement() {
      const element = this.$refs.referencedElement
      // TODO: do something with the element
    }
  }
}
</script>

export default {

methods: {

accessElement() {

const element = this.$refs.referencedElement

// TODO: do something with the element

}

</script>

So far so good. The problem comes when we want to […]

Using validate.js instead of Vuelidate in Vue.js applications

When I first needed some basic form of validation in my Vue.js application, I discovered and used Vuelidate, a popular validation library written specifically for Vue.js. Vuelidate is simple to use and works pretty well inside Vue.js components. It validates all different data sources in a component, based on the validation criteria provided as a […]

On being a senior developer

On being a senior developer is separated into multiple parts, feel free to read the first part On being a senior developer: introduction if you haven’t read it yet. This time I want to look at skills, knowledge and behavioral characteristics that I personally associate with senior software developers. This article is not the definitive […]

On being a senior developer: introduction

Even though it could be, this is not an article about the elderly. If you are here by accident, click here. If not, let’s dive in. I have wanted to write about the topic of being a senior engineer for some time, because I think a lot of people don’t have a clear understanding of […]

Why SCRUM doesn’t work?

Let’s start by saying that companies hardly do SCRUM by the book. I will never forget a project manager, who, after he arrived to the office one day put a big “SCRUM” on our whiteboard and announced that from now on we will be doing SCRUM. You wouldn’t guess what we did afterwards. Every morning, […]

How to communicate with Angular components outside of Angular

Recently I had to figure out the way to interact with Angular components from outside of Angular, from plain JavaScript rendered to a page. In my case I was opening a modal dialog written in Angular from a traditional server-side rendered page. I imagine I am not the only one who needs to mix Angular […]

Elasticsearch: What to keep in mind when doing integration testing

When writing integraion tests that exchange data between your application and Elasticsearch cluster, we need to keep a few things in mind. Tests are simply series of steps to perform and usually we want to execute a specific test synchronously, one step after another. To do so we have to wait until each call to […]

Guide to Mobile Application Development and Management

We are living in the era of mobile applications, usually called just “apps”. The mobile market is huge now, with astonishing number of devices both in type and amount, platforms, applications and app stores. Today, one company often needs more than one application: there are different apps for customers, for partners, for employees, for different […]