Little programming joys

Reduzindo consumo de memória em aplicações Ruby de forma fácil

Small Ruby Refactorings #1

Improving readability by replacing logic with methods

Writing Slack Command APIs in Ruby

In this tutorial you will learn how to implement and deploy a…

Writing Slack Command APIs in Ruby — Part 4

Sending direct messages via Chat API

Writing Command APIs in Ruby — Part 3

Command validation and responses

Introduction

Writing Slack Command APIs in Ruby — Part 2

Authorizing Slack Commands requests

Writing Command APIs in Ruby — Part 1

How to setup a new command application

Crystal, TDD and Conway’s Game of Life.

How I learned a new programming language having fun and using tests.

Unique partial indexes with PostgreSQL

How to use unique partial indexes to avoid conditional duplication

When you need to deal with concurrency and unique records databases are your friend. Unique indexes are the best way to avoid data inconsistence and duplication.