Codeminer42's Engineering Blog
The Miners
Zero Knowledge Proofs and Merkle Trees – An overview before diving into it
If you care about your personal data and preferences (and you get more and more worried with every data leak out there), like your official identification documents, social security or…
AWS SNS – What You Should Know About it + a NodeJS Implementation
Image by unsplash Hi there! In the past few weeks I've been working on the backend of a mobile chat application, or, what I like to call WhatsApp 2. The…
AWS Cognito – An Implementation Guide for your NodeJS Application
In this article, we aim to give you an overview of what AWS Cognito solves and how to use it as your app’s authentication provider, as well as explain how…
ActiveRecord Callback Chain: A Cool (and Weird) Edge Case
Image by jcomp Well, it's been a while. After a lot of time... I'm back! (￣▽￣)/ If you haven't read my last post, give it a look here: “!” and…
The Power of the ::before and ::after CSS Pseudo-Elements
Pseudo-elements are CSS keywords that can be used to style specific parts of an element. Pseudo-elements are declared by the use of double colons (::) after a CSS selector: seletor::pseudo-element{…
